Results 21 to 30 of about 445,228 (283)

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

Analysis of quality defects in the fracture surface of fracture splitting connecting rod based on three-dimensional crack growth

open access: yesResults in Physics, 2018
Quality defects of fracture surface are easily produced in the fracture splitting process of connecting rod. At present, the resulting mechanism of this type of defect is lacking in evidence and there is no effective control method.
Zhou Shi, Shuqing Kou
doaj   +1 more source

Discussion of hardening effects on phase field models for fracture [PDF]

open access: yesMATEC Web of Conferences, 2021
Phase field models have been successfully applied in recent years to a variety of fracture mechanics problems, such as quasi-brittle materials, dynamic fracture mechanics, fatigue cracks in brittle materials, as well as ductile materials.
Tsakmakis Aris, Vormwald Michael
doaj   +1 more source

Non-steady state chloride migration and binding in cracked self-compacting concrete [PDF]

open access: yes, 2013
We adopted a notch method to study the influence of crack width (macro level) on chloride transport and binding of cracked concrete under a non-steady state migration test.
De Schutter, Geert, Ma, Baoguo, Mu, Song
core   +2 more sources

Data-driven Bayesian model-based prediction of fatigue crack nucleation in Ni-based superalloys

open access: yesnpj Computational Materials, 2022
This paper develops a Bayesian inference-based probabilistic crack nucleation model for the Ni-based superalloy René 88DT under fatigue loading. A data-driven, machine learning approach is developed, identifying underlying mechanisms driving crack ...
Maxwell Pinz   +4 more
doaj   +1 more source

Experimental Study on the Vibration of an Overhung Rotor with a Propagating Transverse Crack

open access: yesShock and Vibration, 2002
This paper presents an experimental study on the dynamic response of an overhung rotor with a propagating transverse crack. The effects of a propagating transverse crack and side load on the dynamic response of an overhung rotor are investigated in order
S.A. Adewusi, B.O. Al-Bedoor
doaj   +1 more source

Stress and Strain State Analysis of Crack Front in Dissimilar Metal Welded Joints with Dual Field of Mechanical Heterogeneity and Residual Stress

open access: yesScience and Technology of Nuclear Installations, 2022
The micro-mechanical state at the crack front is one of the key factors affecting the stress corrosion cracking (SCC) growth behavior. The mechanical heterogeneity and residual stress in the dissimilar metal welded joint (DMWJ) induce the micro ...
Shun Zhang   +4 more
doaj   +1 more source

Mode I crack tip fields: strain gradient plasticity theory versus J2 flow theory

open access: yes, 2019
The mode I crack tip asymptotic response of a solid characterised by strain gradient plasticity is investigated. It is found that elastic strains dominate plastic strains near the crack tip, and thus the Cauchy stress and the strain state are given ...
Fleck, Norman A.   +1 more
core   +1 more source

Phase Field Modeling of Fast Crack Propagation [PDF]

open access: yes, 2005
We present a continuum theory which predicts the steady state propagation of cracks. The theory overcomes the usual problem of a finite time cusp singularity of the Grinfeld instability by the inclusion of elastodynamic effects which restore selection of
A. A. Griffith   +9 more
core   +2 more sources

Elastic-plastic analysis of the crack surface vicinity under a pair of anti-plane forces applied at an arbitrary point on the crack surface

open access: yesAIP Advances, 2018
An elastic-plastic analysis of the mode III crack surface vicinity was performed in an infinitely wide elastic-perfectly plastic plate, in which a pair of anti-plane forces applied at an arbitrary point on the crack surface.
Feng Huang   +7 more
doaj   +1 more source

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