hypermesh 笔记:材料属性定义

求解器:hyperworks自带的求解器,应该很少有人用,nastran比较主流
定义材料属性:
ID:Unique material identification number. No defult.
E: 杨氏模量. Defult=blank. (兆帕)
G: Shear Modulus. Defult=blank.
NU:泊松比. Defult=blank(-1.0~0.5)
RHO:密度. No defult.(吨每立方毫米)
A:Thermal expansion coefficient. No defult. 热膨胀系数
TREF:Reference temperature for thermal loading. Defult=0.0
GE: Structural Element Damping coefficeint. No defult.

ST,SC,SS: Stress limits in tension, compression and shear. Used for composite ply failure calculations. No defult.

材料属性的推荐单位:mmNstoneMPa. 具体属性根据这些推荐值外延。

常见材料参数:

TC4钛合金:E=1.1e+05MPa; NU=0.34; RHO=4.5e-09ton·mm^-3; σb>=895MPa

7075硬铝合金:E=0.71e+05MPa; G=0.27E+05MPa; NU=0.3; RHO=2.81e-09ton·mm^-3;σb>=524MPa

316L不锈钢:RHO=7.98e-09ton·mm^-3; σb>=480MPa

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