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Analysis of resistance cracking process on the experiment of meso and macroscopic of quasi-brittle materials
Wang LM1; Xu SL2; Wang HY(汪海英)3; Zhang DH4
Source Publication13th International Conference on Fracture 2013, ICF 2013
Conference Name13th International Conference on Fracture 2013, ICF 2013
Conference DateJune 16, 2013 - June 21, 2013
Conference PlaceBeijing, China
AbstractEngineering materials such as cast iron and concrete are quasi-brittle materials, and there is a fracture process zone in front of opening crack and it exist micro and macro defect and energy dissipation. The damage development area is simplified into fictitious crack, and its action stress distribution and opening displacement or deformation are along the cohesive crack. In order to investigate the constitutive relation of cohesive crack opening displacement and its stress distribution in quasi brittle materials, cast iron and concrete were used to test their fracture process by electronic equipment and micro view experiment facility. Through the analytical method of applied mathematics and mechanics, the material deformation stress constitutive relations were gotten for the cohesive crack. The theoretical calculation and test results are basically in agreement with each other. From the fracture criterion of Double K and the mechanics model of cohesive crack, the bearing capacity of structure with crack was estimated in this present paper. Copyright © (2013) by International Conference on Fracture.
KeywordBrittleness Cast iron Concretes Cracks Deformation Energy dissipation Fracture testing Inverse problems Materials testing Oscillators (electronic) Stress concentration Cohesive cracks Constitutive relations Engineering materials Fracture process Fracture process zone Mesoscopics Quasibrittle material Theoretical calculations
Indexed ByEI
Document Type会议论文
Affiliation1.Department of Science, Qingdao Technological University, Qingdao Shandong 266033, China;
2.Constructure Engineering School, Zhejiang University, Hangzhou Zhejinag 310058, China;
3.Chinese Academy of Sciences, Institute of Mechanics, Beijing 100190, China;
4.School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255049, China
Recommended Citation
GB/T 7714
Wang LM,Xu SL,Wang HY,et al. Analysis of resistance cracking process on the experiment of meso and macroscopic of quasi-brittle materials[C]13th International Conference on Fracture 2013, ICF 2013,2013:3570-3577.
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