Two Dimensional Displacement-Stress Distributions in Adhesive Bonded Composite Structures
Two Dimensional Displacement-Stress Distributions in Adhesive Bonded Composite Structures
复制标题
胶粘复合结构中的二维位移应力分布
DOI：
--
复制
发表时间：
1974
期刊：
影响因子：
--
通讯作者：
J. Pirvics
中科院分区：
文献类型：
--
作者：
J. Pirvics
摘要 提出了对材料粘合形成的复合结构的计算机分析。粘合剂被认为是线性弹性系统的一部分，其组分分别由两个本体弹性常数表征。通过离散化、分段均匀连续体中内部能量分布的有限差分最小化获得解决方案。考虑了复合材料系统的平面应力、平面应变问题以及屈服位移和应力分布。允许位移和/或应力边界条件。不允许有锐角轮廓角。这是对任意平面几何形状的唯一限制。给出了典型搭接剪切样本以及粘合层中存在空隙的对接接头特殊情况的结果。
Abstract Computerized analysis of composite structures formed by the adhesive bonding of materials is presented. The adhesive is considered to be a part of a linearly elastic system whose components are individually characterized by two bulk property elastic constants. Solution is obtained by finite difference minimization of the internal energy distribution in a discretized, piecewise homogeneous continuum. The plane-stress, plane-strain problems are considered, and yield displacement and stress distributions for the composite system. Displacement and/or stress boundary conditions are allowed. Acute contour angles are not allowed. This is the only restriction for otherwise arbitrary plane geometries. Results are presented for typical lap shear specimens as well as for a particular case of a butt joint in which a void exists in the adhesive layer.