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利用改进的霍普金森棒法对汽车用钢板的圆弧焊接接头试验片进行了静强度和冲击强度的拉伸试验,得到了三种不同材料试验片的应变率、应力波、冲击破坏变形和破坏速度并对试验结果进行了分析.试验结果为车体材料的选择提供了依据.
The improved Hopkinson bar method was used to test the static strength and the impact strength of circular welded joints of automotive steel plates. The strain rate, stress wave, impact damage and deformation of the test specimens of three different materials were obtained The speed of destroying and the analysis of test results.The test results provide the basis for the choice of vehicle body material.