提出了一种随机应力时间历程作用下构件疲劳可靠性分析的新模型。
A model for fatigue reliability analysis of structural members under random stress time courses is proposed.
摘要以某型轿车车门为例，建立了前侧门系统的有限元模型，施加了边界条件以模拟实际工况，并采用 ABAQUS求解器计算获得了应力时间历程。
Abstract A finite element model for thefront door system is build, boundary condition is performed to simulate thereal situation, time history of stress is obtained through calculating byABAQUS.
本文通过三维有限单元法分析计算与现场动态应力检测相结合，得到各工况下主梁最大应力部位的实际应力—时间历程。
Firstly, the actual stress history of the projecting beam's maximal stress area is acquired by integrating the three-dimensional FEM analysis calculation and the dynamic stress test at field.
焊点所承受的各种环境应力和工作应力的时间历程（时间应力）是其疲劳失效的直接外因。
The main external factor of solder joints degradation or deviation from an expected normal condition is the time stress such as work and environment stresses.
焊点所承受的各种环境应力和工作应力的时间历程（时间应力）是其疲劳失效的直接外因。
The main external factor of solder joints degradation or deviation from an expected normal condition is the time stress such as work and environment stresses.
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