正交各向异性材料电阻应变测量的横向效应修正  

Modification for the Transverse Sensitivity of Strain Gages in Stress Measurement of Orthotropic Composites

作　　者：朱甫金[1] 陶宝琪[1] 

机构地区：[1]南京航空航天大学

出　　处：《实验力学》1998年第1期115-119,共5页Journal of Experimental Mechanics

基　　金：国家自然科学基金;航空科学基金

摘　　要：本文讨论了电阻应变片测量正交各向异性材料应变的横向效应修正。将测量各向同性测量的表观弹性模量、表观泊松比推广应用于正交各向异性材料，得出了一组与广义虎克定律形式上相同的计算式，并讨论了横向效应对应力测量精度的影响。Modification procedures for the transverse sensitivity of strain gages in stress measurement of orthotropic composites are discussed. By generalizing the concept of apparent modulus and apparent Poisson′s ratio for isothrpic materials, a set of equations for evaluation of stresses, which are identical with the generalized Hook′s law in form, is obtained. The effect of transverse sensitivity of strain gages to the accuracy of stress measurement is also examined.

关 键 词：应变片 横向效应 表观弹性模量 正交各向异性 

分 类 号：O348[理学—固体力学] TB301[理学—力学]