Results 41 to 50 of about 388 (137)

Double cracks with single-inclusion fatigue propagation of surface-quenched large modulus rack

Advances in Mechanical Engineering, 2019
A connectivity criterion based on the analysis of the stress intensity factor for the double cracks and inclusion was developed to study the residual life of large modulus crack.
Xionghao Cheng, Duanwei Shi, Chen Liu, Re Xia, Yang Zhang, Ji Zhou   +5 more
doaj   +1 more source

Multiscale Modeling of Damage Processes in Aluminum Alloys: Grain-Scale Mechanisms [PDF]

, 2008
This paper has two goals related to the development of a physically-grounded methodology for modeling the initial stages of fatigue crack growth in an aluminum alloy.
Bozek, J. E., Glaessgen, E. H., Hochhalter, J. D., Ingraffea, A. R., Veilleux, M. G.   +4 more
core   +1 more source

fatigue crack growth in a compressor stage of a turbofan engine by fem dbem approach [PDF]

, 2018
In this work, the fatigue crack-growth process in a rotating disk of an aircraft gas turbine engine has been simulated. The considered crack nucleated in the attachment between a blade and the disk of a compressor stage, both made of a two-phase titanium
Michele Perrella, Valery N. Shlyannikov, Venanzio Giannella   +2 more
core   +1 more source

Investigation of residual stress characteristics and fatigue crack propagation behavior in GH4169 blisks fabricated by linear friction welding

Journal of Materials Research and Technology
This study established a thermal-mechanical coupling numerical simulation model for linear friction welding of GH4169 superalloy blisks using ABAQUS/Explicit and FRANC3D.
Xiawei Yang, Qiyuan Wang, Yuluan Liu, Yu Su, Mingxuan Yao, Haiyu Xu, Dingyi Shen, Zhenguo Guo, Tiejun Ma, Wenya Li   +9 more
doaj   +1 more source

RESEACH OF THREE-DIMENSIONAL CRACK GROWTH BASED ON DISK OF TURBO-SHAFT ENGINE

Jixie qiangdu, 2018
Three-dimensional crack growth was analyzed using damage tolerance design-based method and Franc3D to find cause of unexpected fatigue test failure of a turboshaft engine disk,showing that the crack propagation life was shorter than the test inspection ...
AI ShuMin, ZHAO ShuaiLei, ZHANG ZhiYi, DENG XiaoTao   +3 more
doaj  

Investigation of Stress Intensity Factors in Welds of Steel Girders Within Steel–Concrete Composite Structures

Buildings
Fatigue damage in steel–concrete composite structures frequently initiates at welded joints due to stress concentrations and inherent defects. This study investigates the stress intensity factors (SIFs) associated with fatigue cracks in the welds of ...
Da Wang, Pengxin Zhao, Yuxin Shao, Wenping Peng, Junxin Yang, Chenggong Zhao, Benkun Tan   +6 more
doaj   +1 more source

Simulation of fatigue crack propagation in the wing main spar flange [PDF]

, 2019
Simulation of fatigue crack growth in the bottom flange of twin turboprop commuter aircraft wing spar is described in this paper. Analysed crack propagation scenario represents real wing full-scale fatigue test failure.
Augustin, Petr
core   +1 more source

Damage tolerance analysis and fatigue life prediction of hydraulic shell

Journal of Aeronautical Materials
Under prolonged operational conditions，the servo motor housing is prone to developing numerous fatigue cracks，which compromise its structural integrity and service lifespan.
ZENG Yuyang, ZHAO Xiaochen, TONG Dihua, HE Yuhuai   +3 more
doaj   +1 more source

Simulation of Railroad Crack Growth Life under the Influence of Combination of Mechanical Contact and Thermal Loads [PDF]

International Journal of Railway Research, 2015
One of the most important issues in railroad wheels is residual stresses. It is desirable to produce less residual stresses when possible and to decrease the remaining residual stresses in the wheels.
Reza Masoudi Nejad, S.M. Salehi, Gholam Hossein Farrahi   +2 more
doaj  

Probabilistic Fatigue Damage Prognosis Using a Surrogate Model Trained Via 3D Finite Element Analysis [PDF]

Utilizing inverse uncertainty quantification techniques, structural health monitoring can be integrated with damage progression models to form probabilistic predictions of a structure's remaining useful life.
Hochhalter, Jacob D., Leser, Patrick E., Leser, William P., Newman, John A., Warner, James E., Wawrzynek, Paul A., Yuan, Fuh-Gwo   +6 more
core   +1 more source