ECF - European Conference on Fracture Series Structural Integrity Books & Publications

ECF 7 - Failure Analysis - Theory and Practise

Proceedings of the 7th European Conference on Fracture, Budapest, Hungary, 1988

VOLUME I

Invited Papers

Probabilistic Fracture Mechanics - Fundamentals and Application
B. MICHEL, T. WINKLER, L. SKURT

Comparison of the Fracture Behaviour of a Structural Component with Test Specimen Behaviour
B.K. NEALE

Failure Analysis and Prevention in China
H.GU

BASIC CONCEPTS

The General Regularities of the Fracture of Structural Materials
L.R. BOTVINA

On the Application of the Dugdale-Panasyuk Model in Analysis of Non-Stationary Crack Motion
A.NEIMITZ

Study of Fracture Instability by the Local and Global Minimum Values of Strain Energy Density
E.E.GDOUTOS and C.G. THIREOS

Deformation Criteria of Materials Fracture
V.V. PANASYUK

The Stress Approach to the Criteria for Mixed-Mode Fracture
A.C. CHRYSAKIS

Mechanics of the Transition from Plastic Flow to Ductile Fracture in Guillotining
A.G. ATKINS

Function of State in Materials under Conditions of Thermal Fatigue
G.N. TRETYACHENKO, B.S. KARPINOS, N.G. SOLOVYOVA

Damage and Fracture with the View Points of Mechanics and Sinergetics
V.S. IVANOVA

Rheologic Model and Destruction Criterion of Metallic Materials
V.P. RADCHENKO, S.V. KUZMIN and Yu.A.YEREMIN

A Study of Rheology in Indentation Fracture
V.S. VASAUSKAS, R.J. BANSEVICIUS, S.V. BASKUTIS

The Quantization Effect of Mechanical Energy Absorbed by Metals Under Deformation and Fracture
Yu. I. RAGOZIN

Energetic Aspects of Low Cycle Fatigue and Fracture Mechanical Properties of AlMg 3 Alloy
E.SHUCHTAR, A. EVA and L.GILLEMOT

Examination of HRR Field Existence Under Plane Stress
V.A. RACKOWSKY and Y.G. MATVIENKO

Solution of Fracture Mechanics Problems Using Complete Stress-Strain Diagrams of Materials
A.A. LEBEDEV and N.G. CHAUSOV

A Kinetic Model for the Delayed Fracture of Low- Alloy Steel Weldments
V.E. MIKHAILOV and O.I. SLEPTSOV

Crack Growth Initiation in Duplex Elastic-Plastic Plates
G.E. PAPAKALIATAKIS

A Model of Cumulative Fatigue Damage
D.KUJAWSKI and F. ELLYIN

Destruction of the Free Liquid Films by Solid Particles
D.O. BYTEV and A.I. ZAITSEV

STRESS / STRAIN ANALYSIS, NUMERICAL METHODS

Stress Intensity Factor Solutions for Planer Defects with Irregular Boundaries
R.A. SMITH and J.F. COOPER

The Behaviour of a Perpendicular Penny-Shaped-Crack Situated Closely to the Free Surface of a Halfspace
F.D. FISCHER and K. MAYRHOFER

On a Generalization of Irvin's Formula for Curvilinear Interface Cracks in Brittle Two-Phase Composite Structures
K.P. HERRMANN and W. MEINERS

A Boundary Integral Equation Method for the Problem of Multiple, Interacting Cracks in Anisotropic Materials
H.MASCHKE

Computational Estimates of Stress Intensity Factor for Cracks in Plates and Shells Using BIE Method
M.R. ETEMAD and C. E. TURNER

Study of Crack Trajectories in Thin Cylindrical Shells: Numerical Analysis and Experimental Validation
A.La BARBERA, M. MARCHETTI and S. TIZZI

On the Reliability of Finite Element J-integral Evaluation in Fracture Analysis
B.B. SABIR

On the Augmentation of Lower Bound Plastic Limit Loads of Imperfect Structures Due to Stress and Strain Hardening
H.J. GOLEMBIEWSKI and G. VASOUKIS

Numerical Study of Stable Crack Growth
W. BROCKS, H.H. ERBE and H.YUAN

Fatigue Analysis for Multiaxially Loaded Structures Based on Finite Element Method
W.OTT and H. NOWACK

Limiting State of Members in Non-Uniform Stress Field
M.D. NOVOPASHIN and A.M. IVANOV

A Partly Unbonded Rigid Fiber Inclusion in an Infinite Matrix
E.E. GDOUTOS

A Finite Element Study of Mixed Mode Crack Problem
W.BROCKS and H. YUAN

T Integral
S. YIN

Interface Crack Growth Control by Means of New Fiber Design
J. HEITZER and C. MATTHECK

New Special Finite Element for Angular Notches
J.M. BASTERO, J.M. MARTINEZ-ESNAOLA and R. MARCOS

Stable Crack Growth of an Elliptical Surface Crack: Numerical Simulation Comparison with the Experiment
E.KEIM and D. SIEGELE

Computer-Aided Simulation of Crack Propagation in Cutting Tools
V.N.KULAKOVSKIY, G.I. CHEPOVETSKIY and A.L. MAISTRENKO

F.E. Calculations of the Crack Extension Force in Both Elastic and Plastic Notch Fields
M.F.R. SAMMUR, F. GUIU and B. PARSONS

Generalization of the Improved Modified Crack Closure Integral Method to Surface Crack Problems
F.G. BUCHHOLZ and H. GRENBNER

Finite Element Analysis of a Pipe Elbow With Longitudinal Through Crack
H.GRENBNER and A. HOFLER

Elastic-Plastic Finite Element Analysis of Welded Structures Containing Cracks and Comparison with Experiments
R.TWICKLER and W. DAHL

Stress Intensity Factors of Cracking Originating from a Hole Situated Between Wall-Reinforcements
C.MATTHECK and S.BURKAHARDT

Failure Analysis: Tribosorption as the Basis of Medium-Induced Fractures
M.MOSER

The Evolution of Slender Crack under Diffusion Mass Transfer Conditions
A.M. KOSEVICH, E.P. FELDMAN and V.A. STRELTSOV

Behaviour of Pulse Loaded Plates at Great Deformations
V.B. YUDAEV and V.M. FAVORIN

Predicted Fatigue Fracture Planes According to Variance of Shear-Stress under Random Triaxial Stress State
W. BEDKOWSKI, C. LACHOWICZ and E. MACHA

Prediction of the Fatigue Life Taking into Account Residual Stress Relaxation Under Cyclic Loading
J.LU and J.F. FLAVENOT

Fracture Analysis of Single and Multiple Crack Propagation in Thermally Shocked Strip
H. -A. BAHR, M. KUNA, H.G. MASCHKE, F. MEISSNER and H. -J. WEISS

ENGINEERING APPLICATION, FAILURE ANALYSIS

Failure Analysis and Fundamental Mechanical Properties of Ductile Materials
M.MARINCEK

Strength and Durability Evaluation of Structural Elements Using Fracture Mechanics Approaches
A.Ye. ANDREYKIV

To Approaches of Elastic-Plastic Fracture Mechanics
K.KALNA

The Failure and Repair of a 300 MN Percussion Press Slide Block
K.L. MAURER, F.D. FISCHER and F.G. RAMMERSTORFER

Some Problems of Path Dependency of J Integral in Welded Structures
A.SEDMAK, S. SEDMAK and V. OGAREVIC

The Structural Life Prediction Under Creep or High-Cycle Fatigue Conditions
Y.SAMARIN, V.ASTAFJEV, V.MACLAKOV and V. SEMENYCHEV

Cracking of Large-Size Machine Elements
M.MAZIARZ

Consideration of Residual Stresses on Critical Crack Size Calculation
L.MUNCNER

Stable Crack Growth of a Semi-Elliptical Outer Surface Crack in a Pressure Vessel
W.BROCKS and G.KUNECKE

The Effect of Residual Stress on J-Integral Behaviour in Full Scale Pressure Vessel Test
T.ADZIEV, B. PETROVSKY and S. SEDMAK

Some Effects of Warm Prestressing (WPS) in A533BW Weld Metal
P.A.S. REED and J.F. KNOTT

Effect of Cold Plastic Deformation on Gas Pipeline Resistance and Toughness Properties
P.IANC, A.T DUMITRESCU, P.MARIAN and D.NITESCU

Interaction of Brittle Fracture and Buckling of Compressed and Torsioned Bars with a Bisymmetric Open Cross-Section
Z.KOWAL

Brittle Fracture of Welded Rails
J. DZIUBINSKI and A. SZYMANSKY

Investigation into the Cause of Cracking in Deaerators in Order to Minimize the Risk of Collapsing
J.G.BOLTEN

Behaviour of Notches and Cracks of Different Size in Constructions under Cyclic Loading
S.SAHN, P.SELIGER and M.SCHAPER

Cyclic Testing of Pressure Vessel Nozzle Models in Elastic-Plastic Region
H. POLACHOVA, L. HORACEK and M. BRUMOVSKY

The Effect of Realistic Service Loading Upon the Fatigue Behaviour of Welded Tubular Joints in Air and Seawater
J.C.P. KAM

Surface Durability of Hollow Rolling Elements
R. KRISHNAMURTHY

Examining fatigue problems of Welded Floor Structures
L.IMRE, GY.POZSGAY and L. BOROS

Optimum Design and Calculation of Reliability for Structures Exposed to Fatigue Loading
L. LENART

NONMETALLIC MATERIALS, COMPOSITES

A Linear Elastic Fracture Mechanics (LEFM) Standard for Determining KC and G C for Plastics
J.G. WILLIAMS

The Model of the Brittle Failure in a Dual-Phase Composite of Damaged Structure
A.MAISTRENKO, K. KROMP and M. MUELLER

Interlaminar Fracture of Composite Materials
A.C. ROULIN-MOLONEY and P. DAVIES

On the Research of Mircrostresses in the Neighbourhood of a Crack in Composite Materials
V.Z. PARTON, A.L. KALAMKAROV and B.A. KUDRYAVTSEV

Strength Anisotropy and the T-Criterion
P.S. THEOCARIS and N.P ANDRIANOPOULOS

A Damage Tolerance Study of Notched CFRP Laminates
M.RENAULT, D. VALENTIN and F.PEREZ

On the Influence of Fibre Orientation of the Dynamic Work of Fracture of Short-Fibre Reinforced Thermoplastics
B.LAUKE and K.H. FREITAG

Fracture Kinetics of Highly Resistant Materials Based on Engineering Thermoplastics
A.I. SVIRDYONOK, V.V. MESHKOV, O.V. KHOLODILOV and G.S. FILATOV

A Damage Micromechanics Approach of Heterogeneous Material
DAN WEI, D. BAPTISTE, Ph. BOMPARD and D. FRANCOIS

Lifetime Prediction for Ceramic Components Subjected to Multiaxial Loading
T. THIEMEIER, A. BRUCKNER-FOIT and D. MUNZ

Bond Based Computational Mechanics Approach to Plain and Fibre Reinforced Concrete
P. STROEVEN and J. BIEN

A Technical Creep Theory for Concrete
M.T. KMETOV

Thermomechanical Fracturing of Rock: Application to Deep Geothermy
G. BERTHOMIEU and P. JOUANNA

Factors Affecting Fatigue Crack Propagation in Polyethylene Pipe Systems
C.C. LAWRENCE

Brittle Failure of Tough Polymers After Ageing
F.I. BABENKO and V.A. SEMYONOV

Determination of Geometry-Independent Fracture Mechanical Parameters of Polymers
W.GRELLMANN and S.SEIDLER

Fracture Initiation in PMMA
A.M.B.A. OSORIO and C.S. MARTINIS

Experimental Investigations of Fracture Mechanisms of Brittle Photoelastic Material
L.KRUSZKA, W.K. NOWACKI and M. WOLNA

Multiple Fracture of Polymers
E.V. PRUT

Numerical and Experimental Investigations Concerning Branched Thermal Crack Systems Originated in Self-Stressed Models of Fibrous Composites
F.FERBER and K.P HERRMANN

Effect of Microstructure on Fatigue Breaking of E Glass-Epoxy
L.VINCENT, L. FIORE, P. PUGET and C.GOURDIN

Influence of Climate on Polymer and Composite Materials Failure
I.S. PHILATOV

Fatigue Life Test on Composite Ceramic
P.AGATONOVIC and R.GRUNMARCH

Microstructure and Fracture in WC-Co System
M.SLESAR, J.DUSZA and L. PARILAK

The Analysis of Failure of Glass Elements in the Process of their Manufacturing
S.E.UMANSKY, B.I. POKRASS and S.A. ROMANCHENKO

Crack Resistance of a Glass Ceramic and Direct Exposure of the Microcrack Zone at the Crack Front
O.BURESCH, M. MULLER, K. KROMP and F.E. BURESCH

Influence of Loading Conditions on Fracture Mechanical Parameters of Alumina
E.BABILON, F.E. BURESCH, G. KLEIST and H. NICKEL

Tensile Strength of Prestressing Steels Under Transversal Loads
A.VALIENTE, M. ELICES, J. TORIBIO

Mixture Design Influence to Concrete Multiaxial Strain-Softening
B.A. RADOVANI

Fracture Toughness of Marble Determined on "Easy-to-Prepare" Specimens
L.BORBAS, E.CZOBOLY and M. GALOS

A Compression Splitting Test for the Toughness of Concrete
B.B. SABIR and M. ASILI

Fracture of Volume-Reinforced Materials for Drill Bits
K.A. KRYLOV, D.V. LAPTEV and T.F. MINEEV

VOLUME II

INVITED PAPER

The Use of Quantitative Fractography in Fatigue Crack Growth Studies
B. KARLSSON and J. WASEN

TESTING METHODS

A Simplified Key-Curve Procedure for J-R-Curve Testing of CT-Specimens
K.R. WALLIN and K. TORRONEN

Results of Round Robin Tests of Fracture Mechanics Parameters within CMEA Countries
M.BRUMOVKSY

Failure Behaviour of Wide Plates with Different Geometries and its Prediction Based on Fracture Mechanics
R.HUBO, W. DAHL and H. EHRHARDT

Dynamic Fracture Toughness Determination of Ductile Steels by Instrumented Charpy Test
H. BLUMENAUER and R. ORTMANN

Determination of the Dynamic Fracture Toughness Using Subsized Specimens
H.STROPPE, R. CLOS and U. SCHREPPEL

Measurement of Dynamic Stress Intensity Factor Under Impact Loading
J. BALAS, M. DRZIK, J, SLADEK and V. SLADEK

Application of the ASPEF Concept for Estimation of Material Behaviour under Cyclic Loading
L. TOTH, GY. NAGY and P. ROMVARI

High Temperature Crack Growth in Alloy 800H and a 1% CrMo V Steel - the Result of an EGF Round Robin
T. HOLLSTEIN, F. DJAVANROODI, G.A. WEBSTER and S.R. HOLDSWORTH

High - Temperature Fracture Toughness of Tungsten and Tungsten-Based Alloys
V.T.TROSHCHENKO, E.I. USKOV and A.V. BABAK

Comparison of the Proposed Polish Standard for Evaluation of Critical J-Integral Value with the ASTM and JSME Standards
L.WOJNAR, A. BOCHENEK, J. TRZESZCZYNSKI and W. BRUNNE

On the Problem of Path Dependency of J Integral for Thin Shells
A.SEDMAK, J. JARIC and M. BERKOVIC

Further Evidence on the Normalisation of J-R Curves
M.R. ETEMAD and C.E. TURNER

The Effect of J-Integral Estimation Procedure and Side-Grooving on J-Resistance Curves for A533 B Steel
J.T. BARNBY, A.S. NADKARNI and N. TRIGWELL

A Generalized Crack Growth Criterion - Simplified JR-Testing
P.WILL, B. MICHEL and U. ZERBST

Estimation on J1C in View of Fractiographic Analysis
S. ROLC, J.ZEMAN, J. SKAREK and S.KORCAK

Anizothermal Ductile Crack Growth in a Austenitic Stainless Steel Weldment
P.BALLADON, B. RANDRIANARIVO, J. HERITIER and C BATHIAS

The Development of a Plastic Hinge Ahead of a Growing Crack
J.R.GORDON

A New Procedure for Calculating COD from the Plastic-Clip-Gauge Displacement for CT Specimens
O. KOLEDNIK

Analysis of the Specimen Size Effect on the Fracture Toughness Lower Bound Curves
L. HORACEK and M. BRUMOVSKY

Failure Analysis of Welded Wide Plates Using Fracture Mechanics Concepts
W. DAHL, A. HEUSER and H. KREBS

On the Path-Stability of Standard and Side-Grooved DCB-Specimen
H.J. SCHINDLER

Experimental Technique for Biaxial Testings of Failure on Semi-Brittle Steels
H.NEGA and K. SANDLER

A Hybrid Method for Determining Stress Intensity Factors
S.V. SHKARAYEV, I.V. CIGANOV and S.A. YARMOLCHUK

High Frequency - Cracktonic- Machine for Making Fatigue Cracks on Notched Bar Impact Test
D.DOBI and R. BERTHTOLD

Fracture Properties Evaluation from Dynamic Tensile Testing
F.GILLEMOT

Dynamic Mechanical and Fracture Properties of Reactor Pressure Vessel Steel
K.POPP, Z. BILEK, J. BUCHAR and H. -W VIEHRIG

Influence of Electropolishing on the Impact Characteristics of Pressure Vessel Steels
PH. VAN ASBROECK, J.L. PUZZOLANTE and A. HENNEN

Damage Accumulation and Fracture of Engineering Materials Subjected to Impuls Loading
M.E.CHAPLYA

Instrumented DT Tests and Transition Criteria
T.A. INTONEN, T.T. MIETTINEN, L.P. KARJALAINEN SEM

Study of Crack Initiation and Propagation in High Speed Steel
D. MANOJLOVIC, R.MILOVIC, V.RADMILOVIC and DJ. DROBNJAK

Fracture Mechanism Study - Can Quantitative Fractorgraphy Help?
L. WOJNAR

Application of Micro Moire Technique for Verification of Fracture Concepts
R. KUHNERT, B. MICHEL, K. HENNIGER and J. AUERSPERG

Utilization of Stray (Fringing) Fields Mathematical Model in Defects Growth Tracing in the Monitored Objects with the Aid of Electronic Computer
I.A. NOVIKOVA

The Method of Defect Parameter Evaluation by Magnetic Field
I.S. PYLTSOV, I.A. NOVIKOVA and V.S. SEMYONOV

Testing of Plastic Defromation and Crack Propagation by the Electrical Potential Method
A.PETER and A. FEHERVARY

Measurements of Crack Growth by Means of Continuous Sound During Instrumented Charpy -Test
D. KALKHOF and W. GOERNER

Acoustic Emission Generated by the Crack Propagation
J. PETRISIC and I. GRABEC

X-Ray Analysis of Low-Alloy Steel from Steam Pipings Subjected to Creep
R. PETROVA, S.KANEV, and I. GEORGIEV

Evaluation of Fatigue Damaging by Changes Modulus Defect Measuring
S.A.GOLOVIN and A., PUSKAR

Computer Controlled Testing Equipments for Fracture Mechanical Purposes
I.CZINEGE and Gy. SAROSSY

Testing of Cracking Sensitive Materials by the Method of X-Ray Fractographic
V. Yu. SAPRYKIN

Experimental Determination of J-Integral by Using the Laser Speckle Method
WEI QUN, Z. JINGJIAN and Y.Z.ZHONG

Extrapolation of Stress Intensity Factors Based on Discrete Experimental Results
F.THAMM

Fatigue Failure Analysis by X-Ray Fractography
A.BIGNONNET, A. DIAS and J. L LEBRUN

Stretched Zone Stereoscopic Measurements as an Independent Control of Material Fracture Toughness
A.J. KRASOWSKY

Some Experimental Observations on Cyclic Creep under Magnetic Field
I.K. BHAT, M.K. MUJU, A. GHOSH

MATERIAL RESPONSE

Role of Ferrite on the Cyclic Behaviour of a 12 Cr Martensitic Stainless Steel
G. DEGALLAIX, J.B. VOGT and J. FOCT

Investigations on Ductility and Fracture of Compound Steel Weldments
T. VARGA, H STRAUBE and M STRIGL

Internal Stresses and Crack Initiation in Asymmetrically Hardened Steel Bars Subsequently Surface Machined by Grinding
L. KOSEC and F. KOSEL

The Influence of Step-Cooling Heat Treatment on the Fracture Behaviour of 2.25 Cr -1Mo Steel
M. HOLZMANN, B. VLACH and J. MAN

Investigation of Fracture Features in Cr- Mo Steel after Different Thermomechanical Treatments
A.LJEVAR, V. SIJACKI - ZERAVIC, R. MILINKOVIC and M.RADULOVIC

The Effect of Intercrystalline Decohesion on Fracture Toughness of Ultra-High Strength Steels
J. POKLUDA, J. ZEMAN, S. ROLC and J. SKAREK

Impact Toughness of Steels for Cryogenic Application
T. MAGUDA and A. ZACZYK

Fracture Toughness of Low - Temperature 10N2 and 10N3 Steels
W. MAZUR, T. MAGUDA and M. MAZUR

Research of Fracture Resistance of 15Kh2MFA Pressure Steel on Specimens of Natural Thickness
M. BRUMOVSKY, H.POLACHOVA, J. SULC, V. ANIKOVSKIJ, Yu. DRAGUNOV and E. RIVKIN

Improvement of Ti-6Al-4V Fracture Toughness by Heat Treatment
A.M.IRISARRI, I.AZKARATE and A. GIL- NEGRETE

Fracture Behaviour of Al-Li Alloys Compared to Conventional High Strength Al Alloys
M. PETERS, K. WELPMANN and J. ESCHWEILER

The Influence of Damages on Crack Initiation in the Overheating Zone of Welded Joints
A.P. AMMOSOV, V.V. POPOV and V.P. LARIONOV

Fracture Mechanics Assessment of AlMg4.5Mn Weld Joint
G.PUSCH and V. HOHNE

Fatigue and Fracture Behaviour of Two Tool Steels
J. TRAVASSOS and M. FREITAS

Effect of Heat Treatment on the Fracture Toughness, the Notch Toughness and the Fatigue Limit of Some HSLA Steels
J.FILA and Z. ZACZEK

Effect of Thermomechanical Treatment on Tensile Properties and Fatigue Strength in 7012 Al Alloy
G. ONOFRIO and G. VIMERCATI

Cyclic Hardening of B.C.C. Iron Alloys Single Crystals
V.NOVAK and B. SESTAK

Development of Fatigue Fractures in Steel with Different Types of Surface Plastic Deformation
B.V BOYTSOV, G.N. KRAVTCHENKO and I.N. CHILIKIN

Fatigue Limit Determination Based on the Yield Stress and Residual Stresses in the Metal Surface Layer
A.V.PROKOPENKO

Fatigue and Fretting - Fatigue Fracture of Hot Rolled Carburizing Steel
T. BACCI, A. DEL PUGLIA, F. PRATESI and G. ZONFRILLO

Prediction of Fatigue Life in Fillet Welded Joints Including Geometry Effects
C.M. BRANCO and J.A. FERREIRA

Equilibrium Fracture Stress (EFS) - New Parameter for Toughness of Microstructures in Steel
P. STANEK and M. LORENC

On the Influence of Microstructure upon Crack Propagation Mechanism and Fracture Toughness
A.HALIM, D.Z. SUN and W. DAHL

The Influence of Microstructure on the Hydrogen Induced Cracking Susceptibility of High Strength Steel
B.ULE, F. VODOPIVEC and L KOSEC

Critical Parameters of Ductile Fracture
M. BIEL and I. GOLASKI

Application of Local Approach of Ductile Fracture to Thermal Shock Loadings
M. BETHMONT, G. DEVESA, G.ROUSSELIER and L. SAINTON

Spall Fracture in Ductile Metals
Z. BILEK, R. CORTEZ, J. BUCHAR and M. ELICES

The Strength Deterioration of Steel Adhesive Joint in Aqueous Environment
T.KAWASAKI, K.MOTOIE, H. KAMATA, T. MIURA and Y. ARAKITA

Influence of Residual Stresses, Generated During Precracking, in Stress Corrosion Tests
A.M. LANCHA and M ELICES

Coexistence of Fatigue Softening and Fatigue Hardening in Quenched Plus Tempered Carburized Carbon Steel
CHEN TIE-QUN, I.VERPOEST, L. FROYEN, P. OVAERE and A. DERUYTTERE

Damage Concept in Weldments
M.D. PAVISIC

Effect of Prior Austenite Grain Size on the Notch Toughness and the Fracture Surface Morphology of EHSLA Steel
J. FILA, Z. ZATORSKI and Z. ZACZEK

A Combined Numerical - Experimental Investigation of Influence Microstructure on Fracture Toughness Microalloyed Steel
A. BOCHENEK

On The Relationship Between Microscopic Cleavage Fracture Stress and Microstructural Parameters in a Cast Hot Work Tool Steel
R.ROBERTI and G.M. La VECCHIA

Fatigue Behaviour of Austenitic Cr-Mn-N-Steels Used for Drill Collars
R. EBNER, H.POHL and M. PANZENBOCK

Influence of Microstructure on Fracture Toughness in the H 75-3 Bainitic Steel Grade
G.MICHALZIK, G. PUSCH and H.J. SPIES

Crack Growth in Cast Irons under Static and Cyclic Loading
O.N. ROMANIV, A.N. TKACH, T. Ya. YUS'KIV

Influence of Aging on the Fracture Toughness Properties of Austenitic Stainless Steel Materials
P.E. SOULAT and M. VOUILLON

The Effect of the Grain Size on the Critical Depth for the Evaluation of Long-life Fatigue Strength Using the Critical Depth Criterion
J.F. FLAVENOT and J.LU

The Influence of Intercritical Annealing on Stress Corrosion Cracking Behaviour of High Strength Steel
J.J. GONZALEZ, F. GUTIERREZ-SOLANA and J.M. VARONA

Effect of Local Strain in Stress Corrosion Testing
J. TORIBIO and M. ELICES

The Influence of Environment and Metallurgical Factors on Fatigue Crack Growth of High Strength Steel
K. MATOCHA, L. HYSPECKA and K. MAZANEC

Hydrogen Assisted Nucleation and Growth of Macrocracks in Metals
V.S. KHARIN

Hydrogen Embrittlement of Al-Li Alloys (8090 and 2091)
F. BINSFELD, J. GARCIA, M. HABASHI and J. GALLAND

Influence of Water Environments on Fracture Toughness of an A508 Class 3 Forging
G.P. GIBSON and S.G. DRUCE

Stable Crack Growth Failure of Al-Si Bronze
J. BYRNE, M.A. PHOPLONKER and R.L. JONES

Effect of Stress State Type on Fracture of Austenitic Steel under Thermal Cycling Conditions
A. KRAJCZYK and R. ZUCHOWSKI

The Propagation of Small Transgranular Surface Cracks in High-Temperature Low-Cycle Fatigue
W.M. LAANEME, S. HURTA, K. BOTHE and V.GEROLD

Implicit Numerical Integration Schemes in the Problems of Creep and Cyclic Plasticity
S.E. UMANSKY, V. KOSARCHUCK, Y. SAVCHENKOV and S. ROMANCHENKO

Microstructural and Mechanical Characteristics of Destructed Metal Taken from Elements Subjected to Creep in Thermal Power Stations
SI.G. KANEV, M.I. MITEVA, St. L. BALDJIEVA and J. St. GEORGIEVA

Creep Damage of Power Plants Components and Remanent Life Assessment
B.M. SOKOLIANSKI

Fracture of Creep-Rupture Specimens in Liquid Sodium at 550°C
H.U.BORGSTEDT, G.DRECHSLER, G.FREES, H.S. KHATAK, Z. PERIC, C. PHANIRAJ and B. SEITH

Creep Crack Growth Behaviour of Selected Turbine Steels
K.MAILE and R. TSCHEUSCHNER

Determination of Creep Crack Growth in the Long-Term Range
K.H.KLOOS, J, GRANACHER and R. TSCHEUSCHNER

CRACK INITIATION AND PROPAGATION

The Regularity of Fatigue Cracks Inititation in Surface Hardened Steel
B.V. BOYTSOV, G.N. KRAVTCHENKO and I.N. CHILIKIN

Computations and Experiments on the Integrity of Components Containing Part-Through Cracks
M.PRODAN and J.C. RADON

Microstructural and Environmental Effects on Fatigue Crack Propagation of Constructional Steel
M. SCHAPER and F. SCHLAT

Temperature and Frequency Effects on Fatigue Crack Propagation
E. SCHUCHTAR and A. PLUMTREE

The Effect of Stress Level on Short Crack Growth Rates in Nimonic AP-1
P. WOOLLIN, J.M. KENDALL, J.E. KING and J.F. KNOTT

Analysis of the Crack Propagation Under Biaxial Cyclic Load Taking into Account Their Orientation
V. N. SHLYANNIKOV and V. A. DOLGORUKOV

Fatigue Crack Growth Under Mixed Mode and Mode II Cyclic Loading
K. HENN, H. A. RICHARD and W. LINNIG

A Geometrical Model for Fatigue Crack-Closure
M. C. LARFARIE-FRENOT and C. GASC

The Influence of a Static Shear Load on Slow Mode I Fatigue Crack Growth
S. E. STANZL, H. R. MAYER, M. CZEGLEY and E.K. TSCHEGG

Initation and Short Crack Growth in Fatigued 13Cr-6Ni-0.5Mo Cast Steel
J. POLAK

Crack Initiation and Small Crack Behaviour in a Copper Based PM Alloy
B. BASSAW, J. MENDEZ and M. GROSBRAS

Fatigue Crack Propagation in a Single Crystal Superalloy at Elevated Temperature
O.R. MURPHY and J. W. MARTIN

Fatigue Crack Propagation in Al-Zn-Mg Single Crystals and its Dependence on the Environment
H. J. GUDLADT, P. LIANG and V. GEROLD

Crack Closure Behaviour of Iron in Air and Vacuum
R. PIPPAN and G. HAAS

Crack Closure and Fracture Surface Topography During Fatigue Crack Propagation in Pearlitic Steels
K. HAMBERG and B. KARLSSON

Fatigue Crack Closure Growth in Structural Steels under the Influence of Gaseous Environments
O. N. ROMANIV, G.N. NIKIFORCHYN and L. Yu. KOZAK

Effects of Temperature on Overload Retardation in 9%Cr-1%Mo Steel
P.J. COTTERILL and J. F. KNOTT

The Effect of Reductions in Maximum Cyclic Load on Fatigue Crack Propagation
H. TAYLOR and G. JOLLEY

Effect of Residual Stress on Fatigue Crack Propagation at Room Temperature in Ferritic-Austenitic Welded Joint
A. I. ZAHOUANE, J. P. GAUTHEIR and B. MARINI

Frequency Effects in Slant Fatigue Crack Growth
J. ZUIDEMA, F. VEER and THEO van SOEST

Study on Fatigue Crack Growth Across Steel Plates Susceptible to Lamellar Tearing
Z. ZACHECK

Fatigue Crack Growth in Large Web Deflection
J. DJUBEK and J. KRIVACEK

PROBABILISTIC ASPECTS

Probabilistic Fracture Mechanics: Approach to Brittle Fracture
J. LAMON

Reliability Evaluation of Carbon Low-Alloy Steel Products for High Temperature Service
E. MAZILU, N. LASCU-SIMION and D. OLTEANU

Correlation of Fracture Mechanics Parameters with Charpy-Energy Based on Statistical Evaluation
E. ROOS and A. KAPITANY

Probabilistic Peculiarities of Ceramic Bodies Fracture
Ya. L. GROUSHEVSKY

The Distribution of Stress-Intensity Factors for a Large Crack Distributed by a Small Crack
F. D. FISCHER, K. L. MAURER and W. DAVES

Fracture Toughness Prediction of Structural Ferrite-Bainitic Steels
B. STRNADEL, E. MAZANCOVA and K. MAZANEC

Service Fatigue Life as a Function of Random Load Factors
M. BILY and V. KLIMAN

On the Estimation of Parameters in Fatigue Crack Growth Law
J. MACHECK and M. MIKOLASEK

LATE PAPERS

On Crack Closure in Fatigue Crack Growth (Invited Paper)
A. J. McEVILY and Z. YANG

Influence of Fixing Parameters of Ortothropic Plated from Composite upon Quantity of Coefficient of Stress Intensity
S.N. BORISOV and S. A. LURIE

Erosion Resistance of Metal Matrix Composites
J. MASOUNAVE, S. TURENNE, C. LE DEORE and G. GAGNON

Micromechanisms and Local Approach of Fracture in a Pearlitic Steel
A, FONTAINE and S. JEUNEHOMME

Predicting Fracture in Aluminium Weldments
U. GRAF and D. KOSTEAS

Crack Initiation and Early Crack Growth in Low Cycle Fatigue of Anodized 2024 Aluminium Alloy
K. HABIB and R. DANIELS