![有限元分析常用材料参数手册](https://wfqqreader-1252317822.image.myqcloud.com/cover/637/33643637/b_33643637.jpg)
上QQ阅读APP看书,第一时间看更新
2024铝合金
运用SHPB装置对2024Al在不同温度(25~400℃),以及不同应变率(700~13000s-1)条件下的动态力学行为开展了系列的实验研究,基于Johnson-Cook本构模型,通过实验数据拟合得到了相应的材料模型参量:
![](https://epubservercos.yuewen.com/CBD420/17977545008662006/epubprivate/OEBPS/Images/111_01.jpg?sign=1739410702-i5C6NbMl25vksDDWs8iq6nYCVRFBI4oh-0-add5bf1ccfa252bd20626368fc62221d)
室温Tr=298K,试样熔点Tm=775K。
王金鹏, 曾攀, 雷丽萍. 2024Al高温高应变率下动态塑性本构关系的实验研究[J]. 塑性工程学报, 2008, 15(3):101-118.
表3-4 Johnson-Cook模型参数
![](https://epubservercos.yuewen.com/CBD420/17977545008662006/epubprivate/OEBPS/Images/111_02.jpg?sign=1739410702-cYDETweNTTmStOA2BbC1kRR5sQU8B2GA-0-53737fe720130958e5a968f664c4685a)
M BUYUK, H KURTARAN, D MARZOUGUI, et al. Automated design of threats and shields under hypervelocity impacts by using successive optimization methodology [C]. International Journal of Impact Engineering, 2008, 35:1449-1458.
表3-5 Gruneisen状态方程参数
![](https://epubservercos.yuewen.com/CBD420/17977545008662006/epubprivate/OEBPS/Images/111_03.jpg?sign=1739410702-eoC6O6b65Ss06THBLDDzfxY1iD4jfSwq-0-bde7028f720b07693f5f77224ea8edb0)
MEDINA S F, HEMADERZ C A. General expression of the Zener-Hollomon on parameter as a function of the chemical composition of low alloy and microalloyed steels [J]. Acta Mater, 1996.