Results 61 to 70 of about 63,924 (165)

Moddeling of Loading Rate Effects on Fatigue Crack Growth

Engineering Transactions, 1993
A mechanical model of fatigue crack growth at low and intermediate ΔK values is presented. In the model the effect of the loading rate on the fatigue crack growth is considered. The localstress and strain are calculated based on the Hutchinson, Rice and
K.M. Gołoś, H.P. Stuwe, R. Pippan
doaj  

Prediction of fatigue crack-growth patterns and lives in three-dimensional cracked bodies [PDF]

Fatigue crack growth patterns and lives for surface cracks, surface cracks at holes, and corner cracks at holes in three dimensional bodies were predicted using linear-elastic fracture mechanics concepts that were modified to account for crack-closure ...
Newman, J. C., Jr., Raju, I. S.
core   +1 more source

Effect of Notches on Fatigue Crack Initiation and Early Propagation Behaviors of a Ni-Based Superalloy at Elevated Temperatures

Metals
The role of notch stress and surface defects on fatigue crack initiation and small-crack propagation behavior has been investigated using groove simulation specimens.
Zuopeng Zhao, Xuteng Hu, Zhiwei Guo
doaj   +1 more source

Analysis and prediction of fatigue crack growth performance for fiber reinforced aluminum-lithium alloy laminates under single-peak compressive overload

Journal of Aeronautical Materials
As a new type of aviation material，fiber/aluminum-lithium（Al-Li）laminates are significantly threatened by fatigue cracks. In other words，fatigue cracks are the “fatal killers”，which leads to their failure.
HUANG Xiao, HUANG Yi, MENG Weiying, ZHANG Xiaochen, WANG Jiaying   +4 more
doaj   +1 more source

Effect of additional heat treatment of 2024-T3 on the growth of fatigue crack in air and in vacuum [PDF]

In order to determine the influence of ductility on the fatigue crack growth rate of aluminum alloys, fatigue tests were carried out on central notched specimens of 2024-T3 and 2024-T8 sheet material.
Louwaard, E. P.
core   +1 more source

A simulation method for fatigue-driven delamination in layered structures involving non-negligible fracture process zones and arbitrarily shaped crack fronts

, 2019
Most of the existing methods for fatigue-driven delamination are limited to two-dimensional (2D) applications or their predictive capabilities have not been validated in three-dimensional (3D) problems.
Bak, Brian L. V., Carreras, Laura, de la Escalera, Federico M., Essa, Yasser, Lindgaard, Esben, Renart, Jordi, Turon, Albert   +6 more
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Fracture toughness and fatigue-crack propagation in a Zr–Ti–Ni–Cu–Be bulk metallic glass [PDF]

, 1997
The recent development of metallic alloy systems which can be processed with an amorphous structure over large dimensions, specifically to form metallic glasses at low cooling rates (similar to 10 K/s), has permitted novel measurements of important ...
Gilbert, C. J., Johnson, W. L., Ritchie, R. O.   +2 more
core   +1 more source

Experimental verification of the linear relationship between fatigue crack propagation rate and constraint and a new crack propagation criterion

Advances in Mechanical Engineering
In this work, fatigue crack propagation tests were carried out at both macroscopic and microscopic scales. The propagation process was monitored using the digital image correlation (DIC) technique, which provided data on the fatigue crack growth rate and
Tong-Yi Wang, Shi-Fa Gu, Jin-Yong Xiao, Jie Yang   +3 more
doaj   +1 more source

Measurement and analysis of critical crack tip processes during fatigue crack growth [PDF]

The mechanics of fatigue crack growth under constant-amplitudes and variable-amplitude loading were examined. Critical loading histories involving relatively simple overload and overload/underload cycles were studied to provide a basic understanding of ...
Davidson, D. L., Dexter, R. J., Hudak, S. J.   +2 more
core   +1 more source

Study on Fatigue Crack Growth Prediction and Machine Learning Correction for Deepwater Risers

Journal of Marine Science and Engineering
Under long-term marine environmental loading, deep-water risers are highly susceptible to fatigue damage, and the accumulation of local damage may lead to global structural failure. In this study, the fatigue damage mechanism and crack growth behavior of
Fucheng Wang, Yong Yang, Baolei Cui, Di Wang   +3 more
doaj   +1 more source