In-situ SEM investigation and modeling of small crack growth behavior of additively manufactured titanium alloy

X Wang, Y Zhao, L Wang, L Wei, J He… - International Journal of …, 2021 - Elsevier
The fatigue crack growth of wire and arc additive manufactured Ti-6Al-4V alloys is
investigated using in-situ SEM fatigue testing. The small crack initiation and propagation …

[HTML][HTML] 燃气涡轮发动机关键部件疲劳小裂纹研究进展

赵高乐, 齐红宇, 李少林, 杨晓光, 石多奇 - 力学进展, 2023 - lxjz.cstam.org.cn
疲劳小裂纹扩展作为疲劳开裂过程中的关键阶段之一, 显著影响着材料和结构的疲劳断裂过程.
因具有速率波动和扩展路径偏转等特点, 小裂纹效应给材料和结构疲劳寿命预测结果带来了不 …

A study on fatigue crack growth behavior subjected to a single tensile overload: Part I. An overload-induced transient crack growth micromechanism

SY Lee, PK Liaw, H Choo, RB Rogge - Acta Materialia, 2011 - Elsevier
Neutron diffraction and electric potential experiments were carried out to investigate the
growth behavior of a fatigue crack subjected to a single tensile overload. The specific …

A unified prediction model for physically small crack and long crack growth based on modified CTOD

W Zhang, L Chai, L Ren, L Cai - Engineering Fracture Mechanics, 2022 - Elsevier
A unified model based on CTOD is proposed to calculate the growth rate of physically small
crack (PSC) and long crack (LC). Firstly, an in-situ SEM testing under the single overload …

Fatigue life prediction of nickel-based GH4169 alloy on the basis of a multi-scale crack propagation approach

S Ye, CC Zhang, PY Zhang, XC Zhang, ST Tu… - Engineering Fracture …, 2018 - Elsevier
This paper was concerned with an approach to predict fatigue life based on a multi-scale
crack propagation model. The expressions of crack propagation rates in microstructurally …

[HTML][HTML] Fatigue crack characterisation in 2024-T351 aluminium alloy through SEM observation combined with the CJP model

JM Robles, JM Vasco-Olmo, AS Cruces, FA Díaz… - International Journal of …, 2023 - Elsevier
This work characterises crack growth in AA2024-T315 by combining different methods to
further increase the reliability of the results. The Christopher-James-Patterson (CJP) model …

[HTML][HTML] Study of the shot peening surface roughness in fretting

M Moreno-Rubio, D Erena, J Vázquez, C Navarro - Tribology International, 2024 - Elsevier
Fretting fatigue manifests in mechanical systems exposed to contact forces that vary over
time, resulting in premature cracks that can lead to component failure. Shot peening …

Analytical fatigue life prediction of shot peened AA 7050-T7451

C Bianchetti, D Delbergue, P Bocher… - International Journal of …, 2019 - Elsevier
Fatigue lives of as-polished and shot peened specimens were predicted using the original
Navarro-Rios model (monotonic damage model) and a more recent version of the same …

[HTML][HTML] A fretting fatigue model based on self-steered cracks

D Erena, J Vázquez, C Navarro… - Theoretical and Applied …, 2022 - Elsevier
In this article a new fretting fatigue life prediction model is presented. The model can be
classified as a variable crack initiation length: the crack initiation and crack propagation …

Analytical fatigue life prediction of shot peened Inconel 718

T Klotz, HY Miao, C Bianchetti, M Lévesque… - International Journal of …, 2018 - Elsevier
High and low cycle fatigue tests performed on shot peened Inconel 718 can result in
different crack initiation locations and mechanisms as well as in a wide range of fatigue lives …