The paper introduces the method of drop impact test and cites the test examples and calculation for ABS and PVC rigid plastics plates.
介绍落锤冲击试验方法，列举ABS板材和PVC硬质塑料板材的试验实例和计算。
The failure mechanism of solder interconnections under sequential TC and drop impact test is different from that under single drop impact test.
研究表明单独的冲击载荷和顺序载荷下焊料微互连的失效机理是不同的。
The construction principle, mechanical properties, basic impact parameters and adjustment methods of cam-type drop impact test table are described.
阐述了凸轮式多次跌落冲击台的结构原理、力学性质、冲击参数及其调整方法。
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