Conversion Engineering Stress-Strain to True Str-zzz.xlsx
真实应变在一些能够承受大变形的材料中很常用，在有限元使用中，要考虑变形的大小，FEA中发生塑性变形的材料，一般都采用真实应力应变曲线。如金属塑性变形，橡胶材料大变形。通常处理方法是：实验采集的数据转换成工程应力应变数据①，再通过上述公式转换成真实的应力应变曲线②，通过真实应变减去弹性应变，得到最终的塑性应变。
节选段落一：
Stress strain
Abaqus convert Emod=84684 Mpa Emod analytically
Engineering/Nominal stress Total engineering strain true stress total true strain true stress total true strain Logarithmic plastic strain 117000
[Mpa] [Mpa] [Mpa]
0 0 0 0 0 0 0
Yied 207 0 207 0 Yield节选段落二：
vs Strain
Engineering Stress vs Strain 0 0 0.08 0 207 255 Abaqus conversion to true 0 0 7.6961041136128394E-2 0 207 275.40000000000003 0 3.8600000000000001E-3 5.3200000000000001E-3 6.5900000000000004E-3 8.5900999999999998E-3 1.1719E-2 1.5440000000000001E-2 1.9369999999999998E-2 2.9159999999999998E-节选段落三：
[%]
Stress[MPa]l
image1.png
image2.png
Stress strain
Abaqus convert Emod=84684 Mpa Emod analytically
Engineering/Nominal stress Total engineering strain true stress total true strain true stress total true strain Logarithmic plastic strain 117000
[Mpa] [Mpa] [Mpa]
0 0 0 0 0 0 0
Yied 207 0 207 0 Yield节选段落二：
vs Strain
Engineering Stress vs Strain 0 0 0.08 0 207 255 Abaqus conversion to true 0 0 7.6961041136128394E-2 0 207 275.40000000000003 0 3.8600000000000001E-3 5.3200000000000001E-3 6.5900000000000004E-3 8.5900999999999998E-3 1.1719E-2 1.5440000000000001E-2 1.9369999999999998E-2 2.9159999999999998E-节选段落三：
[%]
Stress[MPa]l
image1.png
image2.png
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