Results 21 to 30 of about 22,796,336 (236)

A new approach for the influence of residual stress on fatigue crack propagation

open access: yesResults in Physics, 2017
Many manufacturing processes can induce residual stresses in produced components. These residual stresses influence the mean stress during cyclic loading. The initial residual stresses induced during manufacturing change during fatigue damage. This paper
Lin Zhu, Min-Ping Jia
doaj   +1 more source

Comparative modelling of crack propagation in elastic–plastic materials using the meshfree local radial basis point interpolation method and eXtended finite-element method [PDF]

open access: yesRoyal Society Open Science, 2019
The modelling and understanding of crack propagation for elastic–plastic materials is critical in various engineering applications, such as safety analysis of concrete structures and stability analysis of rock slopes.
Yazhe Li   +3 more
doaj   +1 more source

Study of the Rock Crack Propagation Induced by Blasting with a Decoupled Charge under High In Situ Stress

open access: yesAdvances in Civil Engineering, 2020
The high in situ stress can significantly affect the blast-induced rock fragmentation and cause difficulties in deep mining and civil engineering where the drilling and blasting technique is applied.
Xudong Li, Kewei Liu, Jiacai Yang
doaj   +1 more source

Analysis of crack propagation energy and effective unit hindering crack propagation

open access: yesJournal of Materials Research and Technology
Impact tests were conducted on deposited metal of 690 MPa HSLA steel with inter-pass temperatures of 80 °C and 200 °C. The micro-structure and crack propagation path in the near fracture zone were observed using OM, SEM, EBSD and other analytical ...
Aihua Wang   +8 more
doaj   +1 more source

A Convenient Method for Simulating Crack Propagation in Panel Structures Based on the Secondary Development of ABAQUS

open access: yesEngineering Proceedings
In the damage tolerance analysis of aircraft panels, it was necessary to frequently apply complex boundaries and loads to simulate crack propagation. It was difficult to simulate crack propagation with the conventional finite element method.
Wendong Zhang, Xianmin Chen, Jun Yang
doaj   +1 more source

Crack propagation in honeycomb cellular materials: a computational approach [PDF]

open access: yes, 2012
Computational models based on the finite element method and linear or nonlinear fracture mechanics are herein proposed to study the mechanical response of functionally designed cellular components. It is demonstrated that, via a suitable tailoring of the
Paggi, M, Paggi, Marco, Marco Paggi
core   +1 more source

Analysis of Fatigue Crack Propagation of an Orthotropic Bridge Deck Based on the Extended Finite Element Method

open access: yesAdvances in Civil Engineering, 2019
As one of the most fatigue-sensitive parts of an orthotropic steel bridge deck, the weld between the U-rib and the top deck is prone to fatigue cracking under the actions of the stress concentration, welding residual stress, and vehicle load.
Ying Wang, Zhen Wang, Yuqian Zheng
doaj   +1 more source

Edge crack growth of mortar plate specimens under uniaxial loading tests

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
In this paper, a compression-to-tension conversion technique is developed by applying predominant mode I loading test, using a servo-controlled compression system. The technique is applied to thin mortar plate specimens of different widths that include a
Zhenghong Huang   +3 more
doaj   +1 more source

Micro-mechanical insights into the dynamics of crack propagation in snow fracture experiments

open access: yesScientific Reports, 2021
Dry-snow slab avalanches result from crack propagation in a highly porous weak layer buried within a stratified and metastable snowpack. While our understanding of slab avalanche mechanisms improved with recent experimental and numerical advances ...
Grégoire Bobillier   +5 more
doaj   +1 more source

3D modelling of fatigue crack growth and life predictions using ANSYS

open access: yesAin Shams Engineering Journal, 2022
This study uses ANSYS mechanical APDL 19.2 to predict crack propagation trajectories and fatigue crack growth at constant amplitude loading. Mixed-mode fatigue life assessment is implemented by the Paris law model for different configuration of modified ...
Abdulnaser M. Alshoaibi   +1 more
doaj   +1 more source

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