Measurement and evaluation of strain fields in T23 steel based on digital image correlation method

被引：0
|
作者：
林烈雄 [1 ]
徐孟嘉 [1 ,2 ]
徐济进 [1 ]
陆皓 [1 ]
叶诚辉 [1 ]
余春 [1 ]
陈俊梅 [1 ]
机构：
[1] School of Materials Science and Engineering,Shanghai Jiao Tong University
[2] School of Mechanical Engineering,Shanghai Dianji University
来源：
JournalofCentralSouthUniversity | 2017年 / 24卷 / 09期
基金：
中国国家自然科学基金;
关键词：
digital image correlation; strain fields; T23; steel; compact tension specimen; finite element simulation;
D O I：
暂无
中图分类号：
TG142.1 [钢的组织与性能];
学科分类号：
摘要：
Surface strain fields of the designed compact tension(CT)specimens were investigated by digital image correlation(DIC)method.An integrative computer program was developed based on DIC algorithms to characterize the strain fields accurately and graphically.Strain distribution of the CT specimen was predicted by finite element method(FEM).Good agreement is observed between the surface strain fields measured by DIC and predicted by FEM,which reveals that the proposed method is practical and effective to determine the strain fields of CT specimens.Moreover,strain fields of the CT specimens with various compressive loads and notch diameters were studied by DIC.The experimental results can provide effective reference to usage of CT specimens in triaxial creep test by appropriately selecting specimen and experiment parameters.
引用
收藏
页码：1977 / 1985
页数：9
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