Research Explorer

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Researcher

Rudi Denys

Awards & Distinctions

185 Results

2018

Pipeline integrity management system

Bart KoppensRudi DenysStijn HerteléKoen Van Minnebruggen

2016

Influence of pipe steel heterogeneity on the upper bound tensile strain capacity of pipeline girth welds: a validation study

Stijn HerteléKoen Van MinnebruggenMatthias VerstraeteRudi DenysWim De Waele

A1 Journal Article in ENGINEERING FRACTURE MECHANICS

Numerical simulation of ductile crack growth in medium wide plate specimens using 3-D computational cells

Diego SarzosaMatthias VerstraeteStijn HerteléRudi DenysClaudio Ruggieri

A1 Journal Article in ENGINEERING FRACTURE MECHANICS

2015

Ageing pipelines conference: proceedings of the ageing Pipelines Conference, 7-9 October 2015, Ostend, Belgium

Assessment of corrosion associated with the girth or long seam weld in vintage pipelines (EPRG project 177/2014)

Paul RooversTroy SwankieStijn Hertelé

Determination of tensile strain capacity of spiral welded pipelines

Koen Van MinnebruggenStijn HerteléPhilippe ThibauxRudi DenysWim De Waele

Development of collapse equations for corroded girth welds in vintage pipelines

Stijn HerteléAndrew CoshamRudi DenysAntoon LefevrePaul Roovers

Experimental and numerical analysis of welding of girth welded joints

Marek WeglowskiPiotr SedekJanusz PikulaRobert JachymKrzysztof KwiecinskiEugeniusz TurykJerzy NiagajJanusz RykalaWim De WaeleStijn Hertelé

Framework for key influences on tensile strain capacity of flawed girth welds

Stijn HerteléRudi DenysAnthony HornKoen Van MinnebruggenWim De Waele

A1 Journal Article in JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME

Pipeline renewal or lifetime extension?

Bart KoppensRudi DenysStijn HerteléAntoon Lefevre

Resterende sterkte van gecorrodeerde omtreklassen uit pijpleidingen

Stijn HerteléRudi DenysAntoon LefevrePaul Roovers

2014

Constraint analysis of defects in strength mismatched girth welds of (pressurized) pipe and curved wide plate tensile test specimens

Matthias VerstraeteWim De WaeleRudi DenysKoen Van MinnebruggenStijn Hertelé

A1 Journal Article in ENGINEERING FRACTURE MECHANICS

Effects of pipe steel heterogeneity on the tensile strain capacity of a flawed pipeline girth weld

Stijn HerteléNoel O'DowdKoen Van MinnebruggenRudi DenysWim De Waele

A1 Journal Article in ENGINEERING FRACTURE MECHANICS

Evaluation and interpretation of ductile crack extension in SENT specimens using unloading compliance technique

Matthias VerstraeteStijn HerteléRudi DenysKoen Van MinnebruggenWim De Waele

A1 Journal Article in ENGINEERING FRACTURE MECHANICS

Framework for key influences on tensile strain capacity of flawed girth welds

Stijn HerteléRudi DenysAnthony HornKoen Van MinnebruggenWim De Waele

J-integral analysis of heterogeneous mismatched girth welds in clamped single-edge notched tension specimens

Stijn HerteléWim De WaeleMatthias VerstraeteRudi DenysNoel O'Dowd

A1 Journal Article in INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING

2013

Applications of digital image correlation in girth weld testing

Stijn HerteléMatthias VerstraeteKoen Van MinnebruggenRudi DenysWim De Waele

Combined numerical-experimental framework for strain based design and flaw assessment of girth welds

Stijn HerteléRudi DenysKoen Van MinnebruggenMatthias VerstraeteWim De Waele

Comparison of pipeline girth weld defect acceptance at the onset of yielding according to CSA Z662 and EPRG guidelines

Matthias VerstraeteWim De WaeleRudi DenysStijn Hertelé

Considerations in selecting laboratory scale test specimens for evaluation of fracture toughness

Matthias VerstraeteStijn HerteléKoen Van MinnebruggenRudi DenysWim De Waele

Curved wide plate testing with advanced instrumentation and interpretation

Stijn HerteléMatthias VerstraeteKoen Van MinnebruggenRudi DenysWim De Waele

Determination of CTOD resistance curves in side-grooved Single–Edge Notched Tensile specimens using full field deformation measurements

Matthias VerstraeteRudi DenysKoen Van MinnebruggenStijn HerteléWim De Waele

A1 Journal Article in ENGINEERING FRACTURE MECHANICS

Determination of tearing resistance in SENT and CWP specimens using direct current potential drop measurements

Matthias VerstraeteKoen Van MinnebruggenStijn HerteléRudi DenysWim De Waele

Development of a finite element model for spiral welded pipes loaded in tension

Koen Van MinnebruggenStijn HerteléMatthias VerstraeteJeroen Van WittenberghePhilippe ThibauxRudi DenysWim De Waele

Effects of line pipe steel heterogeneity on tensile strain capacity

Stijn HerteléKoen Van MinnebruggenMatthias VerstraeteRudi DenysWim De Waele

Finite element analysis of crack driving force and mode mixity for spiral pipe seam weld flaws

Koen Van MinnebruggenMatthias VerstraeteStijn HerteléJeroen Van WittenberghePhilippe ThibauxRudi DenysWim De Waele

Global collapse and J integral analysis for inner-diameter defected curved plates in tension

Stijn HerteléMatthias VerstraeteRudi DenysWim De Waele

A1 Journal Article in INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING

Influence of anisotropy on flaw acceptability in spiral welded pipe sections

Koen Van MinnebruggenStijn HerteléMatthias VerstraetePhilippe ThibauxJeroen Van WittenbergheWim De WaeleRudi Denys

Influence of corrosion in vicinity to girth welds on the structural integrity of pipelines

Stijn HerteléRudi DenysAntoon LefevrePaul Roovers

Microstructural control of ductile crack arrestability in HSLA pipeline steels

Victor Carretero OlallaA GervasyevI PyshmintsevN SanchezP ThibauxRoumen PetrovLeo Kestens

Pressure correction factor for strain capacity predictions based on curved wide plate testing

Matthias VerstraeteWim De WaeleRudi DenysStijn Hertelé

Sensitivity of plastic response of defective pipeline girth welds to the stress-strain behaviour of base and weld metal

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

A1 Journal Article in JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME

Strain capacity prediction for strain-based pipeline designs

Rudi DenysStijn HerteléWim De Waele

Structural integrity of corroded girth welds

Stijn HerteléRudi DenysAntoon LefevrePaul Roovers

UGent guidelines for SENT testing

Matthias VerstraeteStijn HerteléKoen Van MinnebruggenRudi DenysWim De Waele

Use of curved-wide-plate (CWP) data for the prediction of girth-weld integrity

Rudi DenysStijn HerteléAntoon Lefevre

A2 Journal Article in JOURNAL OF PIPELINE ENGINEERING

Weld strength mismatch in strain based flaw assessment: which definition to use?

Stijn HerteléWim De WaeleRudi DenysMatthias VerstraeteKoen Van MinnebruggenAnthony Horn

A1 Journal Article in JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME

X-80 pipeline steel characteristics defining the resistance to ductile fracture propagation

A GervasyevVictor Carretero OlallaI PyshmintsevA StruinA ArabeyRoumen PetrovLeo Kestens

2012

Constraint analysis of curved wide plate specimens

Matthias VerstraeteWim De WaeleStijn HerteléKoen Van MinnebruggenRudi Denys

Full-range stress-strain behaviour of contemporary pipeline steels: Part I: model description

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

A1 Journal Article in INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING

Full-range stress-strain behaviour of contemporary pipeline steels: part II: estimation of model parameters

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

A1 Journal Article in INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING

Influence and evaluation of constraint on fracture toughness in pipeline research

Matthias VerstraeteStijn HerteléWim De WaeleRudi Denys

Investigation of strain measurements in (curved) wide plate specimens using digital image correlation and finite element analysis

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

A1 Journal Article in JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN

Justification of the mapping approach for finite element modelling of ductile tearing

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

Measurement of ductile crack extension in single edge notch tensile specimens

Matthias VerstraeteStijn HerteléWim De WaeleRudi DenysKoen Van Minnebruggen

Parametric finite element model for large scale tension tests on flawed pipeline girth welds

Stijn HerteléWim De WaeleRudi DenysMatthias VerstraeteJeroen Van Wittenberghe

A1 Journal Article in ADVANCES IN ENGINEERING SOFTWARE

Strain based design considerations for spiral welded pipelines

Koen Van MinnebruggenWim De WaeleRudi DenysPhilippe Thibaux

Weld strength mismatch in strain based flaw assessment: which definition to use?

Stijn HerteléWim De WaeleRudi DenysMatthias VerstraeteKoen Van MinnebruggenAnthony Horn

2011

A generic stress-strain model for metallic materials with two-stage strain hardening behaviour

Stijn HerteléWim De WaeleRudi Denys

A1 Journal Article in INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS

Analytical validation of crack driving force calculations for defects in plates and pipes under tension

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

A2 Journal Article in MECHANICAL ENGINEERING LETTERS

Design of a (mini) wide plate specimen for strain-based weld integrity assessment

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

Development of an analytical reference stress equation for inner-diameter defected curved plates in tension

Stijn HerteléWim De WaeleRudi Denys

A1 Journal Article in INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING

Evaluatie van de vervormingscapaciteit van lasverbindingen

Matthias VerstraeteWim De WaeleRudi DenysStijn Hertelé

Evaluation of strength mismatch by FE Analysis and DIC measurements on cross weld tensile specimens

Matthias VerstraeteWim De WaeleStijn HerteléRudi Denys

Gekoppeld experimenteel-numeriek onderzoek naar de vervormingscapaciteit van pijpsecties met omtrekslasfout

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

Implementation of an unloading compliance procedure for measurement of crack growth in pipeline steel

Koen Van MinnebruggenDries Van PuyveldeWim De WaeleMatthias VerstraeteStijn HerteléRudi Denys

Measurement of ductile crack extension in laboratory scale fracture mechanics testing

Matthias VerstraeteWim De WaeleStijn HerteléRudi DenysDries Van PuyveldeKoen Van Minnebruggen

A2 Journal Article in MECHANICAL ENGINEERING LETTERS

Modelling crack driving force in plates and pipes under tension: a comparison with literature

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

Sensitivity of plastic response of defective pipeline girth welds to the stress-strain behavior of base and weld metal

Stijn HerteléWim De WaeleRudi DenysMatthias Verstraete

Validation of a wide plate finite element model using digital image correlation

Karel De KeyserFrederik Van AckerStijn HerteléMatthias VerstraeteWim De WaeleRudi Denys

2010

Assessment of longitudinal corrosion and girth weld defects in existing pipelines

Determination of full range stress-strain behavior of pipeline steels using tensile characteristics

Stijn HerteléWim De WaeleRudi Denys

Development of the Vierendeel : calculation, aesthetics, welding, concrete

Koen VerswijverRonald De MeyerRudi DenysEmiel De KooningJan Belis

EPRG Tier 2 guidelines for the assessment of defects in transmission pipeline girth welds

Rudi DenysBob AndrewsMures ZareaGerhard Knauf

Evaluation of pipe bending reference stress equations

Matthias VerstraeteWim De WaeleStijn HerteléRudi Denys

Girth weld defect acceptance: workmanship, repair or ECA?

Rudi DenysAntoon Lefevre

Inherent possibilities and limitations of finite element modelling of defective girth welds

Stijn HerteléWim De WaeleRudi DenysMagd Abdel WahabMatthias Verstraete

Interpretation of stress-strain curve in pipeline research

Jan-Baptist WellekensWim De WaeleRudi DenysStijn HerteléMatthias Verstraete

Investigation of pipe strain measurements in a curved wide plate specimen

Stijn HerteléWim De WaeleRudi DenysJeroen Van WittenbergheMatthias Verstraete

Labo Soete exporteert zijn kennis over de hele wereld

Rudi DenysPatrick De Baets

A4 Journal Article in INSIGHTS

Limit load and reference stress for curved wide plates

Stijn HerteléWim De WaeleRudi DenysJeroen Van WittenbergheMatthias Verstraete

Longitudinal strain capacity of GMAW welded high niobium (HTP) grade X80 steel pipes

Rudi DenysStijn HerteléMatthias Verstraete

Modelling or testing: what do we need?

Editorial material

Strain capacity of weak and strong girth welds in axially loaded pipelines

Rudi DenysStijn HerteléMatthias Verstraete

Weldability of micro-alloyed high-strength pipeline steels using a new friction welding variant

Koen FaesPatrick De BaetsAlfred DhoogeWim De WaeleRudi DenysE Van Der DoncktD Delbaere

2009

A new stress-strain model for linepipe steels in strain-based design

Stijn HerteléWim De WaeleRudi Denys

Comparison of API 1104 appendix A Option 1 and EPRG-Tier 2 defect acceptance limits

Rudi DenysWim De Waele

Design criteria for X80 pipe welding: process and strength effects on weld performance in wide plate tests

C DallamV van der MeeS HuysmansRudi Denys

Estimate of Y/T ratio and uniform elongation capacity of pipeline steels from yield strength

Rudi DenysStijn HerteléWim De WaeleAntoon Lefevre

Failure characterisation of a girth weld with a surface-breaking flaw under tensile load

Rudi DenysAntoon Lefevre

Full range stress-strain relation modeling of pipeline steels

Stijn HerteléRudi DenysWim De Waele

Full range stress-strain relation modelling of pipeline steels

Stijn HerteléRudi DenysWim De Waele

A2 Journal Article in JOURNAL OF PIPELINE ENGINEERING

Numerical evaluation of the CMOD of defects in pipeline girth welds under remote plastic deformation

Stijn HerteléWim De WaeleRudi DenysJeroen Van Wittenberghe

Recommended revisions of the EPRG Tier 2 guidelines for the assessment of defects in transmission pipeline girth welds

Rudi DenysRM AndrewsM ZareaG Knauf

The writings of Belgian engineer Arthur Vierendeel (1852-1940): homo universalis or contemporary propagandist?

Koen VerswijverRonald De MeyerRudi DenysEmiel De Kooning

UGent guidelines for Curved Wide Plate testing

Rudi DenysAntoon Lefevre

Update of the EPRG Tier 2 guidelines on the assessment of defects in transmission pipeline girth welds

Rudi DenysRM AndrewsM ZareaG Knauf

2008

'Jusqu'où s'étendra l'emploi du fer en architecture?': 19th and 20th century discourses on the use of iron in architecture

Koen VerswijverRonald De MeyerRudi DenysEmiel De Kooning

Influence of forge pressure on properties of friction welded pipelines using intermediate ring

Koenraad FaesW VermeirschPatrick De BaetsRudi DenysE Van Der Donckt

A1 Journal Article in SCIENCE AND TECHNOLOGY OF WELDING AND JOINING

Interaction between material properties, inspection accuracy and defect acceptance levels in strain based pipeline design

2007

Material Test requirements for Strain-Based Pipeline Design

Rudi DenysAntoon Lefevre

2006

Development of defect interaction criteria for pipeline girth welds subjected to plastic collapse conditions

Wim De WaeleRudi DenysAntoon Lefevre

FITNET FFS PROCEDURE

Wim De WaeleK HASEGAWARudi Denys

Bookchapter in FITNET FFS PROCEDURE

Flaw interaction rules in FITNET FFS procedure

Wim De WaeleK HASEGAWARudi DenysAntoon Lefevre

The 45° fibre orientation and its influence on the frictional behaviour of composites

Jan QuintelierPieter SamynPatrick De BaetsRudi Denys

Tpeбobaния Пo Bязкoctи И Mexaничeckиm Cboйctвam Пpи Pacяжeнии Дпя Oпpeдeпeния Допуctимыx Дeфeкtoв Пpи Пpoeктиpoвahии Tpубoпpoвoдoв Ha Ochoвe Дeфopmaции (Originele tekst in de Engelse taal: Toughness And Tensile Property Requirements For Defect Acceptance In Strain-Based Pipeline Designs)

2005

Fitness-for-purpose assessment of misaligned welds

Wim De WaeleRudi DenysAntoon Lefevre

A1 Journal Article in PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5

Input to code revision for interaction of girth weld defects under plastic collapse conditions

Rudi DenysWim De WaeleAntoon Lefevre

Prediction of the tolerable defect size for strain based design

Wim De WaeleRudi DenysPatrick De Baets

A1 Journal Article in PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5

Wear and frictional behaviour of pultruded profiles on pin-on-disc test apparatus

Jan QuintelierPieter SamynPatrick De BaetsRudi Denys

2004

An engineering approach to the prediction of the tolerable defect size for strain based design

Rudi DenysWim De WaeleAntoon LefevrePatrick De Baets

Effect of pipe and weld metal post-yield characteristics on plastic straining capacity of axially loaded pipelines

Rudi DenysWim De WaeleAntoon Lefevre

Fracture initiation resistance and plastic straining capacity of longitudinally laser welded pipes containing flaws

Antoon LefevreRudi DenysWim De Waele

Pijpleidingen, een toenemend high-tech transportmiddel

Wim De WaeleRudi Denys

A4 Journal Article in HET INGENIEURSBLAD

Plastic straining capacity of axially loaded pipelines, experimental facts and critical considerations

Rudi DenysWim De WaeleAntoon LefevrePatrick De Baets

Validation of an in-situ weld repair procedure for 'old' cellulosic pipeline girth welds

Wim SchipaanboordRudi DenysWim De WaeleAntoon Lefevre

Weld strength mismatch effects on plastic straining capacity of axially loaded pipelines

Rudi DenysWim De WaeleAntoon LefevrePatrick De Baets

2003

Significance of the tension test in relation to plastic pipeline design

Rudi DenysAntoon LefevrePatrick De BaetsWim De Waele

A2 Journal Article in The Journal of Pipeline Integrity

The effect of tensile properties on the failure behavior of girth welds containing defects and subject to plastic longitudinal strains

Rudi DenysPatrick De BaetsAntoon LefevreWim De Waele

A2 Journal Article in The Journal of Pipeline Integrity

Weld metal test performance requirements - A critical appraisal of future needs

Rudi DenysPatrick De BaetsWim De Waele

A1 Journal Article in THERMEC'2003, PTS 1-5

2002

Material tensile properties in relation to the failure behaviour of girth welds subject to plastic longitudinal strains

Rudi DenysPatrick De BaetsAntoon LefevreWim De Waele

Significance of the tension test in relation to plastic pipeline design

Rudi DenysPatrick De BaetsAntoon LefevreWim De Waele

Specification of Charpy Impact Properties

Rudi DenysPatrick De BaetsAntoon Lefevre

Statistical detection of defects in radiographic images in nondestructive testing.

IG KAZANTSEVIgnace LemahieuGI SALOVRudi Denys

A1 Journal Article in SIGNAL PROCESSING

Structural Assessment of Girth Welds in Ageing Pipelines

Rudi DenysPatrick De Baets

2001

Practical Toughness Requirements for Pipeline Girth Welds

Rudi DenysAntoon LefevrePatrick De Baets

2000

Characterization of oxytetracycline-resistant heterotrophic bacteria originating from hospital and freshwater fishfarm environments in England and Ireland.

Geert HuysG RHODESP MCGANNRudi DenysR PICKUPM HINEYP SMITHJean Swings

A1 Journal Article in SYSTEMATIC AND APPLIED MICROBIOLOGY

Effects of stable ductile crack growth on plastic collapse defect assessments.

Rudi DenysAntoon LefevrePatrick De BaetsJoris Degrieck

The Evaluation of Defective Girth Welds in Existing Pipelines

Rudi DenysAntoon LefevrePatrick De Baets

1999

Application and Evaluation of High-Grade Linepipes in Hostile Environments

Effect of Automated Ultrasonic Inspection Capabilities on the EPRG Guidelines.

Rudi DenysP COORSAA LEFEVRE

Integrity Assessment of Pipelines by Large Scale Testing

Pipeline Reliability and Code Requirements, Challenges And Possibilities

Standard Weld-Defect Judging Model Needs Some Research. Part 3: Industrywide cooperation could lead the way to fewer unneeded repairs of girth-weld defects.

The Use Of High Strength Steels: The Consequences For Weld Metal.

Rudi DenysAntoon LefevreChristel De JaegerSara Claessens

The use of fatty acid methyl ester analysis (FAME) for the identification of heterotrophic bacteria present on three mural paintings showing severe damage by microorganisms.

Jeroen HeyrmanJoris MergaertRudi DenysJean Swings

A1 Journal Article in FEMS MICROBIOLOGY LETTERS

Validation Tests to Support the EPRG - Tier 2 Guidelines

W SCHIPAANBOORDRudi DenysAntoon LefevreP ROOVERS

Weld Metal Mismatch, Challenges and Opportunities

Rudi DenysAntoon Lefevre

1997

Py6n M. JleHHca, (DENYS, R.M.) OIIEHKA flOITYCTHMOTH K0PP03H0HHHX JIE<DKTOB 'Corrosion Defect Acceptance Criteria' (Russian Journal 'Oil Pipeline Transport'), Moscou, April 1997, p. 28-36.

A2 Journal Article in Oil Pipeline Transport

1995

Alternative acceptance criteria of girth weld defects in cross country pipelines

Ibid 7, Vol II - pp. 513-522

Toughness Requirements for Pipeline Integrity

Weld metal yield strength testing of girth welds

1994

Fracture behaviour of large diameter pipeline girth welds: Effect of weld metal yield strength and defect interaction

MR DENYSRudi Denys

Weld metal yield strength mismatch effects on structural integrity

1993

Draft Definitive Statement on the Significance of Mis-match of Strength in Welds

Rudi DenysFM BURDEKINM KOCAKKH SCHWALBE

Experimental Investigation of the Fracture Behaviour of Over- and Undermatched Pipeline Girth Welds

Rudi DenysA GLOVER

Fracture Assessment of Over- and undermatched Weld Metal Yield Strengths

Rudi DenysA GLOVER

HAZ Toughness Testing Methods and engineering significance

High Yield Strength Pipelines and Quality Control

Strength and Performance Characteristics of Welded Joints

The European Pipeline Research Groups Guidelines on Acceptable Girth Weld Defect in Transmission Pipelines

Rudi DenysP HOPKINS

1992

A plastic collapse-based procedure for girth weld defect acceptance

Defect acceptance based on fitness-for-purpose: reliability and solutions to improve the predictions

Effect of yield strength on defect size predictions

First provisional definitive statement on the significance of over and undermatching weld metal strength

Material and safety requirements for pipeline construction

Pipeline safety, past, present and future

Testing of steel weldments: evaluation of requirements and specifications

The effect of flow stress and yield to tensile ration on tolerable defect size prediction (92-652)

The future of wide plate testing in welding research, Part 1

The future of wide plate testing in welding research, Part 2

The future of wide plate testing in welding research, Part 3

Weldability properties of high strength steels. Laseigenschappen van hoog waardig staal

An Assessment Techniques for Defects in Under- and Over Matched Pipeline Girth Welds. PRC/EPRG 11th Biennial Joint Technical Meeting on Line Pipe Pipe Research, PRC, Paper 30-10, Washington, Arlington, Va, April 7-11, 1997.

Rudi DenysAntoon LefevreJT MARTINAG GLOVER

Consensus On Judging Multi-Level Weld Defects Would Benefit All. Part 4: Economics may eventually be the lever to bring a change from current assessment methods, Pipe Line & Gas Industry, December 1999 Vol. 82 No. 11, pp. 60-66.

Defect Acceptance Criteria in Thin-walled Pipeline Girth Welds, Mis-Matching of Interfaces and Welds, GKSS Press, Ed. Schwalbe-Koçak, Geesthacht-Reinstorf, Germany, ISBN 3-00-001951-0, pp. 587-598.

GF BOWIEFJ BARBAROCJ MOSSL FLETCHERRudi Denys

Defect interaction for ductile material behaviour, OMAE98-2058. Proceedings of 17th OMAE Conference, Materials Sessions, CD-rom, p. 8 July 5-9, 1998, Lisbon ISBN No 0-7918-1952-3.

Rudi DenysAA LEFEVREChristel De Jaeger

Development of acceptance criteria for pipeline girth weld defects. Proceedings of 7th ECNDT Conference, Copenhagen, Vol. II, 26-29 mei, 1998, - pp. 1760-1769.

Rudi DenysS CRUTZEN

Experimental investigation of the fracture behaviour of over- and undermatched pipeline girth welds. Int. Symp. on Mismatching of Welds, ESIS (Ed. Schwalbe and Kocak), Mechanical Engineering Publications London, 1994, pp. 725-793.

Rudi DenysA GLOVER

Girth-Weld Defect Qualification Methods Need To Be Rationalized. Part 1: Focusing on mechanical properties in Engineering Critical Assessments cuts costs, Pipe Line & Gas Industry, September 1999 Vol. 82 No. 11, pp. 35-42.

Hoe betrekt U de Verschillende Materiaaleigenschappen bij de Evaluatie van Pijp- en Lasdefecten'. Conf. Proc. 'Effectief Onderhoud en Engineering van Pijpleidingen', WTC Amsterdam, Institute for International Research, 25-26 November 1997, pp. 1-' 12, Paper 2.

How Much Weld Metal Yield Strength Do We Need ?

Ibid 7, Vol. II - pp. 581-591.

Is the Transverse Weld Tensile Test a Reliable Test ?

Large Scale Testing of Laser Welded Structural Steels', 8th International Conference on the Jopining of Materials (JOM*), Elsinore, Denmark, May 4, 1997, pp. 1.13.

JK KRISTENSENK BORGFREENS KNUDSENRudi Denys

Material Selection in the Pipeline and Offshore Industries. Revue de la Soudure, Industrial Systems Publishers, Avril 1997, No 53, Brussels, pp. 52-61.

Modern Pipelining - Future Requirements and Challenges, Australian Pipe line Association, Proceedings International Convention Wollongong, October 21-26, 1995, ISBN Number 0729-3518, pp. 25-38.

Pipeline Technology Elsevier Science, Amsterdam, ISBN 0-444-50271, Vol. I & II, 1.202 pages, mei 2000.

Recent Developments in the Evaluation of Girth Weld Defects in Large Diameter High Strength Pipelines'. Conf. Proc. Offshore Pipelines Conference, Paper 5, Berlin, 8-9 December 1997, pp. 1-12, Editor IBC UK Ltd.

Second Pipeline Technology Conference Ostend, September 11-14, 1995, Vol. II - pp. 555- 560.

Small Scale and large Scale Testing of Laser Welded Structural Steels', Mis-Matching of Interfaces and Welds, GKSS Press, Ed. Schwalbe-Koçak, Geesthacht-Reinstorf, Germany, ISBN 3-00-001951-0, pp. 613-626.

JK KRISTENSENK BORGFREENS KNUDSENRudi Denys

Strength and Toughness Requirements for Girth Welds in Overloaded Pipe lines.

Testing for weld metal yield strength

The Backgrounds to the Proposed European Pipeline Research Groups Girth Weld Defect Limits for Transmission Pipelines. PRS/EPRG Ninth Biennial Joint Technical Meeting on Line Pipe Research, American Gas Association, Paper 33, Vol. I, Houston, Texa s, May 11-14, 1993.

Rudi DenysP HOPKINS

The Effect of Weld Metal Mismatch on the Plastic Behaviour of Defective Girth Welds'. Conf. Proc. Technological Developments & Advance for Austrian Industry, WTIA 45th Annual Conference, Paper 32 - pp. 1-13, Melbourne, Australia, 10-12 November 1' 997.

The Effect of Yield to Tensile Ratio on Pipeline Behaviour'.

The effect of weld metal matching on girth weld performance - Volume III, AGA Report, PRC-Line Pipe Welding Supervisory Committee, AGA Catalog Number PR202-922, June 2, 1994, p. 145.

The effects of weld metal matching on the fracture behaviour of HAZ notched CTOD and wide plate test specimens. Int. Symp. on Mismatching of Welds, ESIS (Ed. Schwalbe and Kocak), Mechanical Engineering Publications London, 1994, pp. 445-460.

Rudi DenysAntoon LefevrePE KVAALEB LIAN

Volume II. AGA Catalog Number 202 - September 1994, Ibid. 4, pp. 1-105.

Weld Metal Yield Strength Variability in Pipeline Girth Welds, Ibid 7, Vol. II - pp. 591-598.

Rudi DenysT LEFEVREAG GLOVER

Weld metal yield strength mismath: Practical considerations. IGF10-X Convegno Nazionale Groupo Italiano Frattura, Torino, Italy, Giugno 810, Key-note Lecture, pp. 1-20.

MR DENYSRudi Denys

Weld-defect Acceptance Models Need More Validated Inputs. Part 2: Using good mechanical, toughness and defect-size data could reduced unneeded repairs, Pipe Line & Gas Industry, October 1999 Vol. 82 No. 11, pp. 59-64.

World Pipeline Research'. Conf. Proc. Technological Developments & Advance for Austrian Industry, WTIA 45th Annual Conference. Paper 1 - pp. 1-16, Melbourne, Australia, 10-12 November 1997 (Key-note lecture).

Yield Strength Mis-Match Effects on Fitness-for-Purpose Assessments of Girth Welds, Ibid 7, Vol I pp. 635-650.

Rudi DenysJT MARTINT LEFEVREAG GLOVER