Results 21 to 30 of about 127,705 (267)
Finite element modelling of thin intermetallic compound layer fractures
Journal of Mechanical Engineering and Sciences, 2017 A thin intermetallic compound (IMC) of solder ball joint induces strong stress concentration between the pad and solder where a crack propagated near the IMC layer.
Ooi Eang Pang +4 more
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Meikuang Anquan, 2020 In order to reveal the meso-damage mechanism of physical simulation of coal and rock dynamic disasters, using YYW- Ⅱ uniaxial compression tester and PCIE-8 acoustic emission (AE) monitoring system, the damage space development of samples with different ...
CHENG Xiaoyu
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Advances in Materials Science and Engineering, 2021 In order to study the freeze-thaw damage law of the basic mechanical properties and fracture performance of coal gangue concrete, four kinds of coal gangue concrete specimens with different replacement rates of coal gangue coarse aggregate were designed,
Min Huang, Jingmin Duan, Jiakai Wang
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A Gradient-Enhanced Damage Approach to Fracture [PDF]
Le Journal de Physique IV, 1996 A gradient-enhanced damage is formulated in which the Laplacian of the internal variable which memorises the damage enters the damage loading function in addition to the conventional dependence on this internal variable itself. The computational setting for this higher-order continuum model is fully elaborated.
de Borst, R., Benallal, A., Heeres, O.
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Fracture and damage analysis in design [PDF]
Engineering Fracture Mechanics, 2012 This Special Issue contains selected papers presented at the XXIX National Conference of the Italian Association for Stress Analysis (AIAS), held in Maratea, organized by University of Calabria, (Italy) from 7 to 10 September 2010. This Conference is focussed on several topics, the common matrix being always the (experimental but also numerical and ...
Laura Vergani, Renzo Capitani
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Rock and soil damage-fracture space mechanics: Damage-fracture space [PDF]
Proceedings on Intelligent Systems and Knowledge Engineering (ISKE2007), 2007 Each of the current analytical methods used in rock and soil CT mechanics is “observation”, wasting the precious CT quantitative information. Utilizing the CT number, the perfect degree and the damage-fracture degree of a point inside the rock sample are defined, the λ level perfect field, the λ level damage-fracture field and the λ1-λ2 level ...
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Statistical properties of fractures in damaged materials [PDF]
Europhysics Letters (EPL), 1999 We introduce a model for the dynamics of mud cracking in the limit of of extremely thin layers. In this model the growth of fracture proceeds by selecting the part of the material with the smallest (quenched) breaking threshold. In addition, weakening affects the area of the sample neighbour to the crack.
A Gabrielli, R Cafiero, G Caldarelli
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Shock and Vibration, 2021 The different directions of joints in rock will lead to great differences in damage evolution characteristics. This study utilizes DIP (digital image processing) technology for characterizing the mesostructure of sandstone and combines DIP technology ...
Hao Liu +9 more
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Analysis of Tunnel Lining Failure Mechanism under the Action of Active Fault
Shock and Vibration, 2021 The underground structure that crosses the active fault will cause more serious damage under the dislocation of the active fault. Relying on an actual tunnel in the southwest mountainous area to establish a three-dimensional finite element model, the ...
Sujian Ma +5 more
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Rock and soil damage-fracture space mechanics: The divisional damage-fracture theory [PDF]
Proceedings on Intelligent Systems and Knowledge Engineering (ISKE2007), 2007 This article points out each of the current analytical methods used in CT mechanics of rock and soil avail of observation, wasting the precious quantitative information of CT datum. Based on the conception of the intercepted section in the damage-fracture space, utilizing the knowledge of the set theory, the measure theory and the Lebesgue integral ...
Xiaotao Yin +3 more
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