试样尺寸对钢板塑性应变比r的影响
ffect of Specimen Size on the Plastic Strain Ratio r of steel plate
摘 要
选用三种尺寸的拉伸试样测试塑性应变比(r值)。通过试验和数据分析,得出当试验标距接近试样平行长度时,r值将下降。其原因是当标距接近试样平行长度时,试样标距内的应变是不均匀的。
r值
标距
应变水平
shape of specimen
r value
gauge length
strain level
Abstract
The plastic strain ratio (r value)was tested by the tensile samples of three kinds of size. The experiment results showed that the r value descended when the gauge length was near to the parallel length. Its reason was that the strain in the tensile sample gauge length was non-uniform at that time.
中图分类号 TB302.3
所属栏目 试验技术与方法
基金项目
收稿日期 2007/11/26
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备注徐惟诚(1963-),男,工程师。
引用该论文: XU Wei-cheng,SHI Qiang-zhong,LI He-ping,SU Da-xiong. ffect of Specimen Size on the Plastic Strain Ratio r of steel plate[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2009, 45(2): 94～96
徐惟诚,施强忠,李和平,苏大雄. 试样尺寸对钢板塑性应变比r的影响[J]. 理化检验－物理分册, 2009, 45(2): 94～96
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参考文献
【1】苏大雄. 试样类型对金属薄板塑性应变比(r值)测量影响原因分析[J]. 理化检验-物理分册,2006,42(3)：113-115．
【2】GB/T 5027-1999金属薄板和薄带塑性应变比(r值)试验方法[S]．
【3】JIS Z 2201-1998The pieces for tensile test for metallic materials[S]．
【4】JIS Z 2254-1996Method of determining the plastic strain ratio for metallic sheet and strip[S]．
【5】JFS T 2001-1996薄钢板及钢带塑性应变比试验方法[S]．
【2】GB/T 5027-1999金属薄板和薄带塑性应变比(r值)试验方法[S]．
【3】JIS Z 2201-1998The pieces for tensile test for metallic materials[S]．
【4】JIS Z 2254-1996Method of determining the plastic strain ratio for metallic sheet and strip[S]．
【5】JFS T 2001-1996薄钢板及钢带塑性应变比试验方法[S]．
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