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New Asphalt Pavement Failure Criterion Based on Unified Strength Theory杨群,CHEN Lu,王屏,DAI JingwangKey Laboratory of Road and Traffi c Engineering of the Ministry of Education, Tongji University摘 要... materials. Our studies try to find a new asphalt pavement failure criterion that considers the influence of both tension-compression strength ratio and intermediate principal stress of asphalt mixture......
J. Cent. South Univ. (2016) 23: 570-580 DOI: 10.1007/s11771-016-3104-2 Design and application of electric oil pump in automatic transmission for efficiency improvement and start–stop function LIU...: For the purpose of improving efficiency and realizing start–stop function, an electric oil pump (EOP) is integrated into an 8-speed automatic transmission (AT). A mathematical model is built......
SEM在失效分析方面应用案例 许宏飞1 (1.中国兵器科学研究院,宁波分院,山东,烟台,264003) 摘要:详细介绍扫描电子显微镜(SEM)在关重金属工程构件失效分析过程中所发挥的作用.将为确立失效模式,研究失效机理打下重要的分析基础. 关键词:扫描电镜; 失效分析; 微观断口学; 失效模式; 失效机理; SEM; failure analysis; analysis of micro-fractography; failure mode; failure mechanism; [全文内容正在添加中] ......
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J. Cent. South Univ. (2018) 25: 2567-2577 DOI: https://doi.org/10.1007/s11771-018-3936-z Failure simulation in resistance spot-welded lap-joints using cohesive zone modeling Mohammad Ali Saeimi... extracted using coach-peel and shear lap specimens. The results were employed to simulate deformation and failure in single lap spot weld samples. It has been shown that considering the residual stresses......
]. In the failure assessment diagram or the R6 method [6], the integrity of the structure is assessed and represented in a two-dimensional way: a function of the failure strength pursuant to linear... alloys; center crack tensile specimen; stress criterion; failure assessment diagram; fracture strength 1 Introduction Aerospace industry recognizes two types of failure criteria: yielding and fracture......
; 文章编号:1672-7207(2009)05-1444-07 Calculating method of upper bound for ultimate pullout capacity of vertically loaded strip plate anchors based on nonlinear Mohr-Coulomb failure criterion... bound limit analysis theorem, the associated flow rule and the nonlinear M-C failure criterion, the ultimate pull-out capacity (UPC) of vertically loaded strip plate anchors were studied by means......
, Algeria;2. Laboratory of Industrial Mechanics, University Badji Mokhtar of Annaba, B.O. 12, 23000 Sidi Amar Annaba, Algeria)Abstract:the failure of spur gears operating in highly contaminated media... in gear mechanisms by using unimodal, single distribution models (Weibull and three-parameter Weibull).Key words:contact; solid particles; gear failure; statistical distribution; weibull models......
;A new method of revising activity values has been derived based on the so called correction factor function for binary alloys with a large difference between two components. The correction factor is a function of physical properties formed by the difference of two components. Its absolute value increases with the enhancement of the difference in the character of components. It can be either positive......