摘要
本文阐述了纯剪试验的原理及方法,对三种国产铝板材(δ=1mm) LY12 M,LF21M,LC4M 进行了试验研究,取得了纯剪的应力,应变曲线,同时讨论了板材的 Bauschinger 效应,试验取得了 LF21M 不同方向的 Bauschinger 效应曲线。
Plane shear deformation may be an important factor governing the deformation behavior of sheet metal.In this paper,first,the characteristics of a newly-designed test device for simple shear deformation in plane are described.Second,according to the test,the stress strain curves for three kinds of Aluminium sheet metals (LF21M,LY12M,LC4M)are obtained and discussed in connection with the planer anisotropy of material behavior,in the in-plane simple shear and uniaxaal tensile characteristics. Third,Bau- schinger effect in shnple shear deformation are measured.
关键词
纯剪
板
应力应变曲线
鲍申格效应
simple shear
stress-strain curve
fundamental test
bauschinger effect
