Results 11 to 20 of about 68,665 (303)
Frontiers in Earth Science, 2023 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
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Measurement and simulation of crack growth rate and direction under non-proportional loadings [PDF]
Fracture and Structural Integrity, 2015 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. It is observed that the cracks follow a curvature from a tensile to a shear dominated
Y. Hos, M. Vormwald
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Crack closure effect of fatigue crack under cyclic tensile loading
Nihon Kikai Gakkai ronbunshu, 2015 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
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A Novel Methodology for Calculating Crack Opening Stress under Tension-Compression Cyclic Load
Advances 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
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Three-Dimensional Surface Crack Growth of Maraging Steel Spherical Pressure Shell
Journal of Marine Science and Engineering, 2021 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]
, 2008 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.
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Analysis of transformation-induced crack closure [PDF]
Engineering Fracture Mechanics, 1991 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.
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Metals, 2022 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
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A numerical study of the effect of single overloads on plasticity induced crack closure [PDF]
, 2017 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
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Assessment of 3D Short Crack Closure in Ti-6Al-4V Alloy Utilizing Synchrotron X-ray Microtomography [PDF]
MATEC Web of Conferences, 2020 Synchrotron X-ray microtomography was utilized to observe the complex 3D crack morphology and the closure behavior of a short crack in Ti-6Al-4V alloy. The aim of the study was to investigate the effect of the crack path evolution on the 3D short crack ...
TUBEI Valary +5 more
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