摘要
针对金属板料的动态试验,回顾了高应变速率下弹性杆与液压伺服型单轴试验的方法,介绍了高应变速率下双轴拉伸试验:动态液压胀形试验与动态十字形试件双拉试验。最后,根据不同应变速率下流动应力曲线的四大类型,总结了相应的率相关硬化模型。
For the dynamic tests of sheet metals,the uniaxial tests at high strain rates using elastic-bar-type and servo-hydraulic test systems have been reviewed,and the biaxial tensile tests at high strain rates,including:dynamic hydraulic bulge test and dynamic biaxial tensile tests of cruciform specimen,have been introduced. Finally,the corresponding rate dependent hardening models have been showed,according to the four kinds of flow stress curve at different strain rates.
出处
《精密成形工程》
2016年第2期30-36,共7页
Journal of Netshape Forming Engineering
基金
国家自然科学基金(51405266)
山东省自然科学基金(ZR2014EEP003)
