摘要
基于弹性力学和有限元方法对冲击载荷作用下多层陶瓷电容力学响应开展了理论和数值仿真计算。结果表明:由于自身结构特点,冲击载荷下电容易出现应力集中,基板变形对电容失效影响较大,分析了各工况下电容内部易失效位置及失效机理,其主要破坏特征为焊锡开裂造成脱焊。
Based on the elastic mechanics and finite element method, the mechanical response of the multilayerceramic capacitor under impact loading was carried out. The results show that： the capacitance is prone to stressconcentration under impact loading due to the capacitor’s structural characteristics. The substrate deformation has a greatinfluence on the failure of capacitor. The position and failure mechanism of the capacity failure are studied under variousoperating conditions. The major damage characteristics is solder cracking, causing desoldering.
出处
《电子元件与材料》
CAS
CSCD
2016年第6期28-31,共4页
Electronic Components And Materials
基金
国家自然科学基金资助项目(No.51105132)
装备预研基金资助项目(No.9140A0506312BQ4201)
河南科技大学研究生创新基金项目(No.CXJJ-ZR11)
关键词
多层陶瓷电容
弹性力学
有限元
失效分析
失效机理
应力集中
multilayer ceramic capacitors
elastic mechanics
finite element
failure analysis
failure mechanism
stress concentration
