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Damage constitutive model of different age concretes under impact loadLI Xi-bing(李夕兵)1, 2, WANG Shi-ming(王世鸣)1, WENG Lei(翁磊)1, HUANG Lin-qi(黄麟淇)1, ZHOU Tao(周韬)1, ZHOU Jian(周健)1(1. School... conducted with a large diameter split Hopkinson pressure bar, respectively. Based on statistical damage theory and Weibull distribution, combining the analysis of the change laws of stress- strain curves......
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钢丝拉拔过程损伤模型及模拟计算方峰1,胡显军2,王珺3,李兆霞3,蒋建清0(1.江苏省南京市东南大学江苏省先进金属材料高技术研究重点实验室2.东南大学 江苏省先进金属材料重点实验室,江苏南京 2111893.东南大学 工程力学系,江苏南京 210096)摘 要:为研究材料拉拔成型过程中的损伤问题,以1860MPa级PC钢绞线为研究对象,运用损伤力学理论分析了钢丝拉拔成形过程,采用ABAQUS软件建立了钢丝拉拔成形过程的材料损伤有限元模型,并利用该有限元模型计算了拉拔形变过程中材料损伤的演化规律.计算结果表明,钢......
Mechanism of localized severe plastic deformation and damage fracture in fine-blanking using mixed displacement and pressure FEM XIE Xiao-long(谢晓龙)1, ZHAO Zhen(赵 震)1, YU Song(虞 松)1, GU Sheng... be captured. Schiffmann damage density was used to predict the developments of damage and fracture in sheet metal. The intensive dislocation and slip appear under the action of severe shear......
章编号:1672-7207(2011)01-0170-07 Quantitative analysis of damage evolution as recycled concrete approaches fatigue failure XIAO Jian-qing1, 2, DING De-xin2, LUO Xing-wen3, XU Gen2 (1... of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China ) Abstract: Advantages and disadvantages of several common damage defined methods were studied with test data of recycled......
:1672-7207(2017)12-3284-09 Damage characteristics of concrete structures under the combined loadings of penetration and explosion YANG Guangdong1, WANG Gaohui1, LU Wenbo1, JIN Xuhao2, YAN Peng1, CHEN Ming1..., Beijing 100000, China) Abstract: In order to analyze the damage characteristics of concrete structures subjected to penetration and explosion, the strain rate effect under impact or blast load......
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STUDY ON THE TENSILE FATIGUE DAMAGE OF QUASI-ISOTROPIC COMPOSITE LAMINATES I.S.Kim1,I.G.Kim2,O.S.Kim3,Yaragarra K.D.V.Prasad4 (1.Department of Mechanical Engineering, Mokpo National University, 61... of the interlaminar stresses. It wasconfirmed by tensile fatigue tests that the [0/-60/60]s laminate does not show any vis-ible fatigue damage, but the [30/-30/90]s laminate develops edge-delamination......
Evaluation of microstructure and creep damage in high-Cr ferritic steel weldsMasaaki TABUCHI,Hiromichi HONGONational Institute for Materials Science摘 要:damage in the heat-affected zone (HAZ) during long-term use at high temperatures.In the present study,the processes and mechanisms of Type IV creep damage were elucidated by investigating......
Simulation experiment of AE-based localization damage and deformation characteristic on covering rock in mined-out areaSheng-jun Miao1), Xing-ping Lai1,2), Xing-guang Zhao1), and Fen-hua Ren1) 1...’an 710054, China摘 要:The localization damage and deformation characteristics of multiple rock in mined-out area under thick soil layer were investigated......