Results 31 to 40 of about 7,881 (109)

Laves phase morphology governing strength-plasticity in additively manufactured IN718 alloy

open access: yesMaterials & Design
In additively manufactured IN718, Nb-rich Laves phases often act as crack-sensitive constituents and degrade tensile performance. However, the role of Laves phase geometry in crack initiation and propagation remains insufficiently understood.
Jiasen Han, Hui Chen, Xin Lin
doaj   +1 more source

Mesh refitting approach: a simple method to model mixed-mode crack propagation in nonlinear elastic solids

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2017
We devise a finite element methodology to trace quasi-static through-thickness crack paths in nonlinear elastic solids. The main feature of the proposed method is that it can be directly implemented into existing large scale finite element solvers with ...
Y. Sudhakar, Wolfgang A. Wall
doaj   +1 more source

Related Rules Study of Gear Web Structure and Gear Tooth Root Crack Propagation based on Extended Finite Element Method

open access: yesJixie chuandong, 2016
The extended finite element method( XFEM) is investigated to calculate gear crack propagation. The crack propagation computer program are developed,and the correctness is verified with the aid of standard examples.
Xu Detao   +3 more
doaj  

Dynamic Crack Propagation and Fracture Behavior of Pre-cracked Specimens under Impact Loading by Split Hopkinson Pressure Bar

open access: yesAdvances in Materials Science and Engineering, 2019
Deformation and fracture of brittle materials, especially crack propagation, have drawn wide attention in recent years. But dynamic crack propagation under impact loading was not well understood. In this paper, we experimentally tested Brazilian disk (BD)
Shijun Zhao, Qing Zhang
doaj   +1 more source

Crack Propagation Behavior of Polyurethane Grouting SMA Asphalt Mixtures

open access: yesZhongwai Gonglu
To reveal the influence mechanism of polyurethane grouting on the crack propagation behavior of SMA-13 asphalt mixtures, this paper first conducted a semi-circular bending (SCB) test to validate the effectiveness of the PFC2D discrete element model ...
JI Guoqi   +3 more
doaj   +1 more source

Curved crack paths are predicted by elastic-charges

open access: yesCommunications Materials
Predicting crack trajectories in brittle solids remains an open challenge due to their non-local nature and the way they modify the surrounding medium. Here, we develop a framework for analytically predicting crack paths, analogous to predicting particle
Oran Szachter   +4 more
doaj   +1 more source

Fatigue performance of bogie weld roots: Failure analysis and numerical modeling

open access: yesResults in Engineering
In engineering practice, accurately identifying root failure mechanisms and quantitatively evaluating fatigue performance improvements in the absence of load spectrum conditions remains a challenge.
Shaoze Zhou   +3 more
doaj   +1 more source

Investigating the Influence of Holes as Crack Arrestors in Simulating Crack Growth Behavior Using Finite Element Method

open access: yesApplied Sciences
The primary focus of this paper is to investigate the application of ANSYS Workbench 19.2 software’s advanced feature, known as Separating Morphing and Adaptive Remeshing Technology (SMART), in simulating the growth of cracks within structures that ...
Yahya Ali Fageehi   +1 more
doaj   +1 more source

PhaFiDyn: An explicit dynamic phase field damage model implementation

open access: yesSoftwareX
Predicting the critical load that structures can sustain and the right crack path is an important scientific and practical issue. This reason is the trigger for the appearance of the damage mechanics.
A. Barki   +4 more
doaj   +1 more source

Analysis of Microscopic Crack Propagation in Polyurethane‑Cement Stabilized Crushed Stone Based on Discrete Element Method

open access: yesZhongwai Gonglu
To study the effect of polyurethane grouting on the crack repair performance of cement stabilized crushed stone, a microscopic model of cement stabilized crushed stone was established by the discrete element method (DEM) in this paper.
YU Xin   +5 more
doaj   +1 more source

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