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(2014)02-0576-05 Nonlinear fatigue damage characteristics and stress evolution law of asphalt pavement SUN Zhilin1, ZHUO Bin2, LIAO Zhongping1 (1.Engineering Research Center of Catastrophic Prophylaxis... general finite element software ABAQUS and the secondary development platform, an asphalt pavement numerical model which considers the pavement material nonlinear fatigue damage was established to analyze......
modified Hayhurst creep damage model was proposed to consider the prior cyclic loading damage. The main advantage of the proposed model lies in its ability to directly predict creep behavior with different levels of prior cyclic loading damage. Comparison of the predicted and experimental results shows that the proposed model can give a reasonable prediction for creep behavior of P92 steel with different......
Concrete Damage and Neutralization under Coupling Effect of Carbonation and Freeze-thaw Cycles牛荻涛School of Civil Engineering,Xi’an University of Architecture and Technology摘 要:damage of concrete was studied as well and vise versa so as to shed light......
Estimation of interfacial damage in composites with reinforced particles based on ultrasonic dataXiqiang Liu, Peijun Wei, Li Zhang, and Hang Wang Applied Science School, University of Science... of interfacial damage were studied. First, the scattering of elastic waves by a spherical particle with imperfect interface, i.e. spring interface model, was studied. Then, multiple scattering......
Annealing Effects on Structural, Optical Properties and Laser-Induced Damage Threshold of MgF2 Thin FilmsTing-Ting Tan,Bang-Jie Liu,Zhi-Hui Wu,Zheng-Tang LiuState Key Lab of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University摘 要:The chemical structures, optical properties and laser-induced damage......
Ballistic Performance and Damage Characteristics of Chemical Vapor Infiltration Quasi 3D-Cf/SiC Composites何旭道,程兴旺,WANG Qi,WANG PeiNational Key Laboratory of Science and Technology on Materials under Shock and Impact,Beijing Institute and Technology摘 要:To investigate the ballistic performance and damage characteristics of quasi threedimensional(3D......
Influence of Low-velocity Impact on Damage Behavior of Carbon Fiber-reinforced Composites张小玉1,2,ZHOU Ruoyu1,陈建中1,2,Lü Yong1,2,CAO Dongfeng31. School of Science, Wuhan University of Technology2. Hubei...:A combination of experimental measurements and numerical analysis was utilized to study the low-velocity impact damage of domestic carbon fiber-reinforced......
指数 Fig.2 Damage index of each floor 图3所示为整体结构损伤指数沿工况的变化情况及性能水平的定义区间.由图3可见:3条地震波作用下结构的损伤指数随输入加速度峰值增大而增加,各条地震波曲线存在一定差异,但总体变化趋势基本一致,弹性阶段损伤较小,构件开裂形成裂缝进入弹塑性阶段后损伤增幅较快,最终结构竖向抗侧力构件损伤严重,但结构尚未形成倒塌. 图3 结构损伤指数 Fig.3 Damage index of structure 结构各楼层损伤指数中位移损伤与滞回耗能损伤在不同加速度峰值时比例不同,以结构损伤程度较严重的第3,4和5层为例,分析在不同加速度峰值时ELW波的位移和滞回耗能损伤,如图4所示.由图4可见:在加速度峰值为0.035g,0.070g和0.140g时位移损伤指数均比滞回耗能损伤指数大,说明在弹性阶段楼层位移是引起结构损伤的主要因素.随着输入结......
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Structural integrity and damage of ZrB2 ceramics after 4 MeV Au ions irradiationWeichao Bao1,2,Stuart Robertson3,Jia-Wei Zhao3,Ji-Xuan Liu2,Houzheng Wu3,Guo-Jun Zhang2,Fangfang Xu11. State Key... been chosen to investigate its irradiation damage behavior.Irradiated by 4 MeV Au2+ with a total fluence of 2.5 × 1016 cm-2,zirconium diboride ceramic shows substantial resilience to irradiation......