Results 61 to 70 of about 321,633 (209)

Predicting fatigue crack growth rate in a welded butt joint: The role of effective R ratio in accounting for residual stress effect [PDF]

open access: yes, 2009
A simple and efficient method is presented in this paper for predicting fatigue crack growth rate in welded butt joints. Three well-known empirical crack growth laws are employed using the material constants that were obtained from the base material ...
Servetti, Guido, Zhang, X.
core   +1 more source

Study of the Shielding Interactions between Double Cracks on Crack Growth Behaviors under Fatigue Loading

open access: yesMetals, 2020
In this paper, the interactions between double cracks with a co-bisector-line were investigated theoretically and experimentally. Fatigue crack growth tests of specimens with a single crack or double cracks were carried out to measure the crack growth ...
Zhichao Han, Caifu Qian, Huifang Li
doaj   +1 more source

Crack growth measured on flat and curved surfaces at cryogenic temperatures [PDF]

open access: yes, 1967
Multiple element continuity gage measures plane stress crack growth plus surface crack growth under plane strain conditions.
Orange, T. W., Sullivan, T. L.
core   +1 more source

Influence of Grain Boundary on the Fatigue Crack Growth of 7050-T7451 Aluminum Alloy Based on Small Time Scale Method

open access: yesAdvances in Materials Science and Engineering, 2016
Based on the small time scale method, the influence of grain boundary on the fatigue crack growth of 7050-T7451 has been investigated. The interaction between fatigue crack and grain boundary was investigated by in situ SEM testing.
Weihan Wang   +4 more
doaj   +1 more source

An axial crack growth prediction procedure initiated at butt welded joint (Growth prediction for surface crack deeper than semi-circular and that retarded at weld fusion line)

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Structural integrity of cracked pipes is assessed by predicting crack growth. In the fitness-for-service code of the Japan Society of Mechanical Engineers (JSME), the crack growth is predicted using stress intensity factor at the deepest and surface ...
Masayuki KAMAYA
doaj   +1 more source

STATISTICAL ANALYSIS OF FATIGUE CRACK GROWTH TEST DATA FOR 2024-T62 ALUMINUM ALLOY

open access: yesJixie qiangdu, 2019
The fatigue crack growth tests for 2024-T62 aluminum alloy were conducted under three stress levels, the dispersion of fatigue crack growth were analyzed by using experimental data based on mathematical statistics.
WANG XuHu   +3 more
doaj  

A Novel Methodology for Calculating Crack Opening Stress under Tension-Compression Cyclic Load

open access: yesAdvances in Materials Science and Engineering, 2021
Crack closure model has been used in several applications on the prediction of fatigue crack growth life, with expression of crack opening stress often serving as milestones.
Lin Zhang, Xiaohui Wei
doaj   +1 more source

Numerical simulation of grain-size effects on creep crack growth by means of grain elements [PDF]

open access: yes, 1998
The effect of grain size on creep crack growth is investigated by means of a numerical technique in which the actual crack growth process is simulated in a discrete manner by grain elements and grain boundary elements.
Giessen, E. van der,, Onck, P.R.,
core   +3 more sources

In-situ SEM and optical microscopy testing for investigation of fatigue crack growth mechanism under overload

open access: yesMATEC Web of Conferences, 2018
In this paper, the in-situ scanning electron microscope (SEM) and optical microscopy experiments are performed to investigate the crack growth behavior under the single tensile overload. The objectives are to (i) examine the overload-induced crack growth
Zhang Wei, Cai Liang
doaj   +1 more source

R-curve Evaluation of Copper and Nickel Single Crystals Using Atomistic Simulations

open access: yesCrystals, 2018
The technique of molecular statics (MS) simulation was employed to determine the crack growth resistance curve of Cu and Ni single crystals. Copper and Ni single crystal nanoplates with an edge crack subjected to a tensile displacement were simulated ...
Xiao Ru Zhuo   +2 more
doaj   +1 more source

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