Results 61 to 70 of about 1,666,698 (151)

Numerical Investigation of Strength Mismatch Effect on Ductile Crack Growth Resistance in Welding Pipe

Applied Sciences, 2020
The effect of strength mismatch (ratio between the yield stress of weld metal and base metal, My) on the ductile crack growth resistance of welding pipe was numerically analyzed.
Lin Su, Jie Xu, Wei Song, Lingyu Chu, Hanlin Gao, Pengpeng Li, Filippo Berto   +6 more
doaj   +1 more source

Calibrating an adaptive cohesive zone model to simulate ductile crack propagation in structural steel under cyclic loading

Fatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 2, Page 319-343, February 2024.
Abstract A procedure is outlined for calibrating a finite element model to simulate ductile cracking that employs a continuum damage criterion for ductile fracture initiation, termed the Stress Weighted Ductile Fracture Model, with an Adaptive Cohesive Zone method to simulate crack propagation.
Andy Ziccarelli, Amit Kanvinde, Gregory Deierlein   +2 more
wiley   +1 more source

Finite-element analysis of initiation, stable crack growth and instability using a crack-tip-opening displacement criterion [PDF]

, 1982
An elastic-plastic (incremental and small strain) finite element analysis was used with a crack growth criterion to study crack initiation, stable crack growth, and instability under monotonic loading to failure of metallic materials.
Newman, J. C., Jr.
core  

Constraint-Driven Fracture Toughness Assessment of Unequal-Wall-Thickness X80-X60 Girth Welded Pipelines Using SENT Specimens

Metals
Unequal-wall-thickness X80-X60 girth welded joints used in pipeline transition sections exhibit strong local mechanical heterogeneity, while the wall-thickness transition also introduces a separate structural geometry effect.
Ke Wang, Min Zhang, Dan Chen, Weifeng Ma, Weizhe Hao, Xuan Yang   +5 more
doaj   +1 more source

Two paramether description of crack opening displacement

, 2002
The basic aim of this paper is to describe the influence of T-stress on a crack profile, crack tip opening displacement CTOD and crack mouth opening displacement CMOD. Different methods of determination CTOD values are discussed.
Hutař, Pavel
core  

Characteristics of Microstructure and Fracture Toughness According to the Groove Shape of Submerged Arc Welding

Metals
This study investigates the effects of heat input on the microstructure and fracture toughness of SAW (Submerged Arc Welding) joints with K-groove and X-groove weld preparations using S460NL steel.
Yong-Taek Shin, Chang-Ju Jung, Seong-Han Bae, Gyubaek An, Myungrak Son, Young-Il Park   +5 more
doaj   +1 more source

CRACK TIP OPENING DISPLACEMENT AND ANGLE FOR A GROWING CRACK IN CARBON STEEL [PDF]

, 2005
The crack tip opening displacements and angles (CTOD/CTOA) are calculated with finite element method based on the test data of a set of constraint-dependent J-R curves for A285 carbon steel.
LAM, POH-SANG
core  

Relationships between various definitions of the crack tip opening displacement

, 1985
Published in: The crack tip opening displacement in elastic-plastic fracture mechanics (workshop on CTOD methodology, Geesthacht (DE), 23-25 April 1985), Springer-Verlag 1986Copy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ ...
Hellmann, D., GKSS-Forschungszentrum Geesthacht G.m.b.H., Geesthacht-Tesperhude (Germany), Heerens, J., Schwalbe, K.H., Cornec, A. (GKSS-Forschungszentrum Geesthacht G.m.b.H., Geesthacht-Tesperhude (Germany). Inst. fuer Werkstofftechnologie und Chemie)   +4 more
core  

Analysis on Fracture Toughness of the L360QS/N08825 Bimetallic Composite Pipe Welded Joint

Advances in Materials Science and Engineering, 2019
The fracture toughness of the weld and heat-affected zone (HAZ) of the L360QS/N08825 composite pipe welded joint was evaluated by a crack tip opening displacement (CTOD) test.
Bin Wang, Hongxia Lan, Bobo Lei
doaj   +1 more source

Evolution equations for the C(t)-integral and the crack-tip opening displacement CTOD for elastic-viscoplastic material behavior and temperature dependent material properties

, 2018
S.125-140In this paper evolution equations for the C(t)-integral and the crack-tip opening displacement CTOD are presented for elastic-viscoplastic material behavior and monotonic loading. The evolution equations account for the temperature dependence of
Schweizer, C.
core   +1 more source