摘要
针对靶材在激光诱导下变形的热力学特点 ,设计了一套宏观力学性能实验方案 ,考虑温升率、温度、应变率及其历史效应对 10 #钢力学性能的影响 .在此基础上 ,提出和发展了一组新的一维本构方程 .它能描述文中实验所反映出的各种宏观力学规律 .
Under the condition of high temperature rate, the mechanical properties of 10 # steel are determined experimentally with a very wide range of temperature and strain rate. A new constitutive relationship is developed which can describe various phenomena observed in this experiment. Meanwhile, some interesting characteristics about the temperature rate, strain and strain rate hardening and temperature softening are also shown. Finally, the reliability of the constitutive law and the righteous of the selection of the constitutive parameters are checked by comparing the calculation values with the experimental results.
出处
《固体力学学报》
CAS
CSCD
北大核心
2001年第2期120-128,共9页
Chinese Journal of Solid Mechanics
基金
86 3计划强激光技术领域
国家自然科学基金 (19891180 )资助
关键词
激光
本构方程
应变率
温升率
laser, constitutive law, strain rate, temperature rising rate
