榴-4 引信在加速试验条件下失效机理探讨

The Study on the Failure Mechanism of ML—4 Fuze under the Condition of Accelerated Test

根据榴—４引信在正常应力水平和高应力水平条件下的失效分布以及它在加速寿命试验过程中的成份变化情况，对榴—４引信的失效机理进行了分析，得出了榴—４引信在温度８０℃、相对湿度９０％这一应力水平下，失效机理保持不变的结论。

On the basis of the failure distribution of ML—4 fuze under the conditions of normal stress and high stress levels and its composition variation in the accelerated life test,we have analyzed the failure mechanism of ML—4 fuze and come to the conclusion that the failure mechanism of ML—4 fuze is unchanged at stress levels of 80℃ temperature and 90% relative humidity.