聚碳酸酯透明材料吹塑成形过程为一个大变形过程,在试验研究此大变形过程中,需要得到其真应力真应变曲线,同时真应变率对力学性能的影响非常突出。为了测定不同恒定真应变率下聚碳酸酯的真应力真应变曲线,为成形模拟工作打下基础,笔者自主开发了WDW型万能试验拉伸机。通过试验验证,此系统能够很好的满足在恒定不同真应变率下测得不同温度下,聚碳酸脂的真应力真应变曲线。
There is a large deformation when PC take form.The realstrain velocity act a important role on the shape of the realstressreal stain curve in experiment. To gain the curve at different realstrain velocity, Beijing Institute of aeronautic Material and the institute of KEXIN has developed the WDW mechanics machine. By the experiment, the realstressreal strain curve at different realstain velocity are obtained.
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