Digital image correlation based high-speed crack tip locatingmethod and its application

• 作 者: 曹彦彦 马沁巍 郭文婧
• 机 构: SchoolofAerospaceEngineering,StateKeyLaboratoryofEarthquakeDynamics,BeijingInstituteofStrengthandEnv
• 出 处: 北京理工大学学报：英文版
• 发表日期: 2016年1期
• 关键词: digital image correlation(DIC) high speed crack crack tip virtual extensometer c
• 基金项目: Supported by the National Natural Science Foundation of China （ 11172039, 11402023） , the Fundamental Research Funding of BIT （20120142021）, the State Key Laboratory of Earthquake Dynamics （ LED2011B0

Based on a digital image correlation(DIC)method with the measurements of a high speed crack’s displacement and strain fields,a technique to accurately and automatically locate its crack tip has been developed.The crack tip is identified by finding the abr