河南城建学院学报Issue(3)：46-50,5.DOI:10.14140/j.cnki.hncjxb.2015.03.011
基于炭黑环氧树脂基复合材料涂层的钢筋应变测量方法研究
Strain sensing of steel bar by thin film of carbon black reinforced epoxy-matrix composite attached
摘要
Abstract
A thin film of carbon black reinforced epoxy-matrix composite attached to a steel bar is used to sense its strain .Results under tension show that the fractional change in electrical resistance of the composite varies monotonically with bar strain .In the elastic regime , the fractional change in resistance increases linear-ly upon loading and decreases linearly upon unloading .When the bar yielding , the fractional change in resist-ance increases sharply with strain .A mathematical relation between the fractional change in resistance and strain is derived .关键词
炭黑/环氧树脂基复合材料/钢筋/应变/电阻相对变化率Key words
carbon black/epoxy-matrix composite/steel/strain/fractional change in resistance分类
建筑与水利引用本文复制引用
毛清林,赵晓华..基于炭黑环氧树脂基复合材料涂层的钢筋应变测量方法研究[J].河南城建学院学报,2015,(3):46-50,5.基金项目
广东省高等学校自然科学研究重点项目（06Z013）；教育部高等学校博士学科点专项科研基金 （）
