Results 131 to 140 of about 1,261 (166)

Influence of cryogenic conditions on the crack tip opening displacement of AA2519 aluminum alloy

Developments in Mechanical Engineering, 2021
Basically, the aim of the study was to determine the value CTOD of AA2519 aluminum alloy under ambient and cryogenic conditions. The research of CTOD was carried out in several stages. The first step was to prepare the CT sample.
Maciej Kotyk, Wojciech Ziółkowski, Radosław Stachowiak, Piotr Swacha   +3 more
semanticscholar   +1 more source

Finite element analysis of crack-tip opening displacement and plastic zones considering the cyclic material behaviour

Procedia Structural Integrity, 2019
Propagation and behavior of fatigue cracks are governed by strain fields in the vicinity of the crack tip. The numerical description of strains in the crack tip presents some challenges in the modelling by the multiscale involved in the fracture analysis.
Hector A Tinoco, CARLOS I Cardona, Pavel Hutar   +2 more
exaly   +2 more sources

A quantitative study on the influence of compressive stress on crack-tip opening displacement

Ocean Engineering, 2017
Jingjie Chen
exaly   +2 more sources

Crack-tip-opening-displacement-based description of three-dimensional elastic-plastic crack border fields

, 2020
Characterization of elastic-plastic crack-tip fields has been great developed in the framework of the classical dominating parameter J-integral, which has a limit of the basic assumptions of small deformation and simple proportional loading. A stable and
Pengfei Cui, Wanlin Guo
semanticscholar   +1 more source

A Proposal of the Crack Tip Opening Displacement Calculation Formula and Its Conversion Factor to J-Integral in C(T) Specimens

, 2020
The crack tip opening displacement (CTOD) concept describing cleavage embrittlement failure proposed by Wells is an important technology supporting the reliability of steel structures around the world.
T. Kawabata, Y. Kayamori, T. Tagawa
semanticscholar   +1 more source

Crack-tip-opening-displacement-based description of creep crack border fields in specimens with different geometries and thicknesses

, 2020
Creep crack growth is accompanied by strong nonlinear deformation and stress relaxation. Finding an appropriate parameter to characterize the crack tip fields, as well as the fracture resistance, has long been a challenge.
Pengfei Cui, Wanlin Guo
semanticscholar   +1 more source

Test Method for Crack-Tip Opening Displacement (CTOD) Fracture Toughness Measurement

2008
  +8 more sources

Unified constraint parameter based on crack-tip opening displacement

Engineering Fracture Mechanics, 2018
To develop new fracture assessment methodology to incorporate both in-plane and out-of-plane constraints, it is desirable to develop unified constraint parameters convenient for engineering calculation and application.
Jichao Xu, Guifeng Wang, F. Xuan, S. Tu
semanticscholar   +1 more source

Investigation of crack tip opening displacement fracture toughness in repair welds of process piping

Welding International
Process piping welds are important because the equipment is a key component in energy and chemical processing. The study assesses repair and original welds using tensile tests, microhardness, microscopy, crack tip opening displacement (CTOD) at −29 °C ...
Gil M. Agag Jr., P. D. de Yro, Rocel D. Gualberto, Donnalyn C. Cabaces, C. Aranas Jr.   +4 more
semanticscholar   +1 more source

Influence of segregation on microstructure and low-temperature crack tip opening displacement of coarse-grained heat-affected zone in a 420 MPa grade ultra-heavy marine steel

Materials technology (New York, N.Y.)
The influence of segregation on the microstructure and Crack Tip Opening Displacement (CTOD) of the Coarse-Grained Heat-Affected Zone (CGHAZ) in a 420 MPa grade ultra-heavy marine steel was investigated.
Hanwen Liu, J. Qu, Chunjie Lu, Huoping Wang, Jingbo Zeng, Zhenjia Xie, Jingliang Wang, Chengjia Shang   +7 more
semanticscholar   +1 more source