Strong Impact Damage Boundary of Missile-borne Chips
Aiming at the uncertain and inaccurate damage boundary of the shock response spectrum of the mis-sile-borne chip structure in the strong mechanical shock environment,the chip was equivalent to a single-degree-of-freedom undamped system and the shock response analysis was carried out,and the structural stress response and pseudo-velocity shock were established.The response of the missile-borne chip structure spectrum was ana-lyzed under the impact load in different frequency ranges,the damage boundary and correct the damage boundary of the shock response spectrum were constructed through the critical acceleration signal;the finite element simu-lation software was used to analyze the impact.The simulation analysis of the missile-borne chip structure under load showed that the critical stress value was in good agreement with the corrected damage boundary.The re-search results could provide a theoretical basis for the reliability design and failure analysis of integrated circuits under strong mechanical shock environment.
NETL
NSTL
万方数据
维普
