Evaluation System of SinkingResistance for AutoBody Sheet Material
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摘要: 抗凹性是评价汽车板使用性能的一项重要指标.建立了汽车板抗凹性评价体系,并从试验原理 、试件制备以及评估参数等方面作了系统的描述.在此基础上,开发了基于微机控制的专用 抗凹性试验机系统,详细介绍了试验机构成、测控系统以及加载系统.应用表明试验结果 稳定可靠.Abstract: The sinking-resistance is one of the important performance properties of automo bile panel. The evaluation methods of sinking-resistance for auto-body sheet w ere proposed and some key factors were introduced, which include test principle, shapes/status of specimens as well as evaluating parameters of test r esults.The special test machine for evaluating sinking-resistanc e was developed, which is controlled by micro-computer. Its struc ture, measurement and control system as well as loading system were described. The application in the factory indicates that the test results are stable and relia ble.
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Key words:
- automobiles /
- evaluations /
- testing machines /
- sinking-resistance
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[1] Mccormick M A. Effect of steel strengthening mechanisms on dent resistance of au tomotive body pancels[M].US:SAE, 1998.935~923 [2] Prabhar K, Rastogi. Effect of steel thickness and mechanical properties on vehicle outer panel performance:Stiffness,oil canning load and dent resistan ce . US:IBEC, 1993.236~246 [3] White J L. Improvement in the dent resistance of large automotive panel . 12th IDDRG .Toronto,1982.255~264 [4] 李雪峰.汽车板材抗凹性试验方法及数值模拟研究 .北京:北京航空航天 大学机械工程及自动化学院,2001 Li Xuefeng. Numerical simulation and the test method of dent resistance for auto mobile sheet material .Beijing:School of Mechanical Engineering and Automat ion,Beijing University of Aeronautics and Astronautics, 2001(in Chinese) -
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