摘要
运用三维有限元法分析了胶粘剂力学性能参数对劈裂载荷作用下胶接接头(简称劈裂接头)应力分布规律的影响。结果表明:胶粘剂弹性模量和泊松比的变化对劈裂接头应力分布有着直接影响;随着弹性模量或泊松比升高,胶层内应力分布重心向左端移动,左端应力集中加强,峰值应力上升,但是泊松比对胶层最大主应力峰值的影响不如弹性模量的影响明显。
The stress distribution of adhesively-bonded metal/metal single lap joints under cleavage loading is analyzed using three-dimensional finite element method(FEM).The influence of mechanical parameters of adhesive on the stress distribution of cleavage joints is discussed in detail.It is shown that adhesive has great influence on the stress distribution of the lap region.Increasing elastic modulus or Poisson s ratio of adhesive also can cause the stress concentration at the left end of the adhesive layer.With...
出处
《航空材料学报》
EI
CAS
CSCD
2006年第4期110-114,共5页
Journal of Aeronautical Materials
关键词
胶接接头
劈裂载荷
有限元法
应力分布
adhesive bonded joints
cleavage loading
finite element method
stress distribution
