Experimental analysis of crack tip fields in rubber materials under large deformation

作     者：Xia Xiao Hai-Peng Song Yi-Lan Kang Xiao-Lei Li Xiao-Hua Tan Hao-Yun Tan 

作者机构：Department of MechanicsTianjin University300072 TianjinChina School of Mechanical EngineeringTianjin Polytechnic University300387 TianjinChina Hebei University of Technology300401 TianjinChina 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2012年第28卷第2期

页      面：432-437页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (10732080 and 11102134) 

主　　题：Crack-tip field. Large deformation Sector divi- sion mode. Three-nested-deformation model- Digital Moir6 method 

摘      要：A three-nested-deformation model is proposed to describe crack-tip fields in rubber-like materials with large deformation. The model is inspired by the distribution of the measured in-plane and out-of-plane deformation. The in- plane displacement of crack-tip fields under both Mode 1 and mixed-mode （Mode I-II） fracture conditions is measured by using the digital Moir6 method. The deformation character- istics and experimental sector division mode are investigated by comparing the measured displacement fields under differ- ent fracture modes. The out-of-plane displacement field near the crack tip is measured using the three-dimensional digital speckle correlation method.