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Abstract:
采用试验方法,通过准静态压缩试验和分离式Hopkinson压杆试验,获得不同应变率10-3s-1~103s-1和不同温度293K~873K范围内TA1的应力-应变曲线;基于Johnson-Cook模型对试验结果进行分析,并对其应变率强化项做出修正。结果表明,TA1为应变率敏感材料,流动应力随应变率增加而增加,随温度增加而减小;未经修正的Johnson-Cook本构模型与试验数据偏差较大,修正后的本构模型与试验值吻合较好。
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塑性工程学报
ISSN: 1007-2012
CN: 11-3449/TG
Year: 2012
Issue: 06
Volume: 19
Page: 114-117
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 3
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