Analysis of resistance cracking process on the experiment of meso and macroscopic of quasi-brittle materials

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Analysis of resistance cracking process on the experiment of meso and macroscopic of quasi-brittle materials
	Wang LM 1; Xu SL 2; Wang HY(汪海英)3 ; Zhang DH 4
	2013
会议日期	June 16, 2013 - June 21, 2013
会议地点	Beijing, China
关键词	Brittleness 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
页码	3570-3577
英文摘要	Engineering 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.
会议录	13th International Conference on Fracture 2013, ICF 2013
语种	英语
ISBN号	9781629933696
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/77986]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.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
推荐引用方式 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]. 见:. Beijing, China. June 16, 2013 - June 21, 2013.