IMECH-IR  > 非线性力学国家重点实验室
一种确定材料Johnson-Cook动态本构模型的方法
戴兰宏; 张洧菡; 李统; 乔禹; 陈艳; 汪海英
2023-08-04
Rights Holder中国科学院力学研究所
Abstract本发明提供了一种确定材料Johnson‑Cook动态本构模型的方法,首先获得待测材料在每组工况下的拉伸试验数据,然后读取待测材料在对应工况下的真实塑形段曲线,确定Johnson‑Cook动态本构模型中的参数,设置收敛阈值并迭代,直至Johnson‑Cook动态本构模型中的参数与上一代参数相比小于等于设定的收敛阈值时判定迭代结束,输出结果,完成拟合,最后对得出的Johnson‑Cook动态本构模型参数进行评估,得出可准确预测该材料的力学行为。本发明构思合理,基于多种高低应变率和温度的五组拉伸试验数据,能够低成本、高效、准确的预测出材料在高应变率的力学行为。
Application Date2023-05-25
Date Available2023-08-04
Patent NumberCN202310594115.7
Language中文
Classification发明专利
Document Type专利
Identifierhttp://dspace.imech.ac.cn/handle/311007/93920
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
戴兰宏,张洧菡,李统,等. 一种确定材料Johnson-Cook动态本构模型的方法. CN202310594115.7[P]. 2023-08-04.
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