理化检验：物理分册2012，Vol.48Issue(4)：248-251,4.
提高非接触式位移/应变视频测量仪的拉伸试验精度
Improvement on Tensile Test Accuracy Utilizing Non Contact Video Gauge
摘要
Abstract
By utilizing non contact video gauge of IMETRUM corporation at MTS 810 material testing system equipped with contact extensometer,results comparison about static tensile testing of painting specimens made of Q235 steel was performed.The results show that stress versus strain curves obtained by these two different instruments nearly coincide.In elastic deformation and yield stage the two curves also coincide better.Acquired mechanical properties by means of these two different instruments coincide basically.In elastic deformation stage relationship of stress versus strain by means of video gauge curves slightly,and its linearity is relatively lower,but acquired Young＇s modulus of elasticity by means of video gauge is almost equal to that by contact extensometer.In summary,painting treatment on the specimen surface can improve significantly accuracy about static tensile testing of metallic material by utilizing IMETRUM video gauge.关键词
非接触式视频测量仪/引伸计/拉伸试验精度/喷漆处理/杨氏弹性模量Key words
non contact video gauge/extensometer/tensile test accuracy/painting treatment/Young's modulus of elasticity分类
金属材料引用本文复制引用
张文泉,白桦..提高非接触式位移/应变视频测量仪的拉伸试验精度[J].理化检验：物理分册,2012,48(4):248-251,4.基金项目
北京市自然科学基金资助项目 （）
2009年北京工业大学教育教学研究项目 （）
