锻压技术

汽车覆盖件用6016铝合金板高应变速率敏感性试验研究

英文标题：Experimental study on high strain rate sensitivity of aluminum alloy sheets 6016 used in automobile panels

作者：李言波刁可山路旭蒋浩民

单位：宝山钢铁股份有限公司研究院汽车用钢开发与应用技术国家重点实验室（宝钢）

关键词：汽车覆盖件 6016铝合金板高应变速率敏感性 Johnson-Cook模型耐碰撞性能

分类号：TG386

出版年,卷(期):页码：2016,41(9):121-125

摘要：

汽车碰撞（被动）安全性常用仿真分析方法来预测，高应变速率下材料性能参数的准确性关系到汽车碰撞仿

真分析的精度。针对国内外的4种汽车覆盖件用6016铝合金板，进行了不同应变速率（5～500 s-1范围内）

的高速拉伸试验，利用Johnson-Cook模型进行数据处理，系统研究了4种汽车覆盖件用6016铝合金板的力学

性能（屈服强度、抗拉强度及断裂伸长率）和耐碰撞性能的应变速率敏感性。研究结果表明，4种6016铝合

金板的屈服强度和抗拉强度具有较低的速率敏感性，其断裂伸长率和耐碰撞性能具有较高的速率敏感性。

Automotive crash safety is commonly predicted by simulation analysis, and its accuracy is

closely related to materials properties under high strain rates. For four kinds of automotive

aluminum alloy sheets 6016 at home and abroad, high speed tensile tests were carried out at

different stain rates(5-500 s-1), and data were analyzed by the model Johnson-Cook. Then,

their mechanical properties (yield strength, tensile strength and elongation) and the stain

rate sensitivity of crashworthiness were studied systemically. The results show that yield

strength and tensile strength of aluminum alloy sheet 6016 have a low strain rate sensitivity,

while the elongation and crashworthiness of aluminum alloy sheet 6016 have a high strain rate

sensitivity.

基金项目：

李言波（1987-），男，硕士，助理工程师

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