The dynamic mechanics performance and constitutive model of 30CrMnSiA high strength alloy steel

Yisheng Lin, Xuejin Fu, Yuecheng Yang, Tao Suo

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

To study the dynamic mechanics performance of 30CrMnSiA high strength alloy steel, stress versus strain curves of 30CrMnSiA steel are experimentally obtained over the strain rate from 102 s-1 to 8 × 103 s-1 and temperatures at 25, 200 and 400°C by using the split Hopkinson pressure bar assembled with a temperature controller. It is found that the flow stress increase with increasing strain rate. So, at the strain rate higher than 7000s1, the flow stress of 30CrMnSiA steel increases sharply with increasing strain rates due to the stabilizing effects of the strain rates sensitivity. The flow strain versus stress curves at different temperatures under similar strain rates show that the flow stress decreases significantly with increasing temperature, so 30CrMnSiA steel show thermal softening characteristic. The parameters of Johnson-Cook plastic constitutive model are obtained through fitting experimental values. The corresponding numerical simulation of the dynamic behavior is conducted with the finite element software ABAQUS based on J-C model. Results indicate that the simulation provided by J-C model is found to be appropriate to describe the dynamic mechanics behavior under experimental conditions.

源语言英语
主期刊名Proceedings of 2010 Asia-Pacific International Symposium on Aerospace Technology, APISAT 2010
出版商Northwestern Polytechnical University
905-908
页数4
ISBN(电子版)9787561228999
出版状态已出版 - 2010
活动2010 Asia-Pacific International Symposium on Aerospace Technology, APISAT 2010 - Xi'an, 中国
期限: 13 9月 201015 9月 2010

出版系列

姓名Proceedings of 2010 Asia-Pacific International Symposium on Aerospace Technology, APISAT 2010

会议

会议2010 Asia-Pacific International Symposium on Aerospace Technology, APISAT 2010
国家/地区中国
Xi'an
时期13/09/1015/09/10

指纹

探究 'The dynamic mechanics performance and constitutive model of 30CrMnSiA high strength alloy steel' 的科研主题。它们共同构成独一无二的指纹。

引用此