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behavior of quasi-brittle materials. This model is applied to analyzing the size effect of crack behavior in concrete structure. JIRASEK and ZIMMERMANM[12] proposed and developed the non-local... Non-local damage and fracture model of rock and concrete-like materials BI Zhong-wei(毕忠伟)1, 2, ZHANG Ming(张 明)1, JIN Feng(金 峰)1 1. State Key Laboratory of Hydroscience and Hydraulic......
, and the residual plastic strain decreases with decreasing particle size. Key words: metal matrix composite; thermal residual stress; particle size effects; non-local theory; finite element analysis 1... into the constitutive equations via nonlocal variables which are expressed as an integral of local variables over all the material points in the body. Compared to the MSG theory, the advantage of TNT is the simplicity......
The Organize Structure and Property of Eletroless Ni-P/PTFE Composite Layer HAO Wen-sen1,ZHAO Fu-jun2,LI Guo-xiang3,WANG Zhou2,Li Guo-Xi3,ZHANG Xu-yun1,LI Hong-liang2,XA Li-fang4 (1.Daqing... of the temperature of heat treatment, the joint force of the composite layer is decreased. 关键词:eletroless Ni-P/PTFE; composite layer; structure and property; [全文内容正在添加中] ......
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in shear band can’ t be predicted theoretically based on classical elastoplastic theory. The average damage variable in shear band was considered to be a non-local variable. Based on non-local theory... of ductile metal only governs the thickness of shear band. In the strain-softening region of shear band, the local damage variable along shear band’s tangential and normal directions is non-linear......
frequency is less than the cut-off frequency. The voids, thermal and non-local parameter affect the dilatational waves whereas shear wave is only depending upon non-local parameter. It is found... nanostructure devices. Key words: three-phase lag model; semiconductor; fractional order time derivative; non-local theory; nanostructure; voids; reflection Cite this article as: HASHMAT Ali, ADNAN......
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not generally present a slip surface like in the cases from the classical continuum, indicating that the micro-polar continuum is capable of capturing the non-local geotechnical failure characteristic... underestimated, if the effects of lc are not modeled or considered in numerical analyses. Key words: slope stability; strain localization; non-local geotechnical failure; micro-polar continuum; internal......
The Study on 400 MPa Class Plain Carbon Structure Steel DU Lin-xiu1,WANG Guo-dong1,LI Wei-juan2,ZHANG Hong-mei2,LI Sheng-li2 (1.State Key Lab of Rolling and Automatic, Northeastern University, Shenyang 110006, P.R. China;2.Anshan science and technology university, Anshan 114044) 摘要:New generation of structure steel has been developed to meet the uninterruptedly increasing needs of the economic......
化学提金技术孙家寿武汉化工学院摘 要:本文介绍了多种化学法提金技术和从矿石中提金的主要化学原理.根据试验结果,作者阐述了对难处理金矿,含金硫铁矿进行预处理的主要化学反应．探讨了提高金银选矿指标的途径.关键词:提金;含金黄铁矿;化学法;难浸金;......
