Results 11 to 20 of about 68,841 (302)
Measurement and simulation of crack growth rate and direction under non-proportional loadings [PDF]
A series of fatigue experiments on thin-walled tubes under tension and torsion, the experimental results – crack path and crack growth life – are measured and compared.
Y. Hos, M. Vormwald
doaj +3 more sources
The crack closure in impact coal seams induced by high-pressure air blasting greatly affects gas drainage efficiency. The length of the crack closure was calculated and analyzed based on energy and elastic theories. The closure region was then determined
Weihua Song +3 more
doaj +1 more source
Crack closure effect of fatigue crack under cyclic tensile loading
The objective of this study is to evaluate crack growth behavior under cyclic tensile loading considering crack closure effect. Crack growth behavior under cyclic tensile loading on a plate with surface crack is tested.
Akiyuki TAKAHASHI +3 more
doaj +1 more source
A Novel Methodology for Calculating Crack Opening Stress under Tension-Compression Cyclic Load
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
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Three-Dimensional Surface Crack Growth of Maraging Steel Spherical Pressure Shell
This study focused on the three-dimensional surface crack growth of a spherical pressure shell. Eight maraging steel 18Ni (250) samples were fabricated and tested, and the fatigue crack growth rate curves were obtained.
Yongmei Zhu, Rujun Li, Jiahao Yang
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Simulation of Near-Tip Crack Behaviour and Its Correlation to Fatigue Crack Growth with a Modified Strip-Yield Model [PDF]
A modified strip-yield model has been developed to simulate the plasticity-induced crack closure under the constant amplitude (CA) and a single overload loading conditions.
Chen, Y.K., Tiu, W., Wang, L., Xu, Y.
core +1 more source
Analysis of transformation-induced crack closure [PDF]
Abstract Deformation-induced martensitic transformation around a fatigue crack results in the phenomenon of crack closure. By approximating the residual stress field due to the volume expansion in the transformed zone as that of an edge dislocation pair, a closed-form solution of crack opening as a function of external loading is derived.
Mei, Z., Morris, J.W.
openaire +2 more sources
Maraging steels are used in several industries, namely in the molds industry. The determination of fatigue crack propagation resistance in 18Ni300 maraging steel at the Paris regime is a vital issue for safety-relevant components, which are designed to ...
Rui F. Fernandes +5 more
doaj +1 more source
A numerical study of the effect of single overloads on plasticity induced crack closure [PDF]
In this work, the effect of single overloads on plasticity induced crack closure is studied. An elastic-plastic finite element model was developed and the crack opening level was calculated from the contact forces along the crack flank.
Antunes, F.V. +3 more
core +1 more source
Constant amplitude and post-overload fatigue crack growth behavior in PM aluminum alloy AA 8009 [PDF]
A recently developed, rapidly solidified, powder metallurgy, dispersion strengthened aluminum alloy, AA 8009, was fatigue tested at room temperature in lab air.
Blankenship C. P. +12 more
core +2 more sources

