采用三维弹塑性有限元模拟的方法,研究了几何尺寸对铝胶接接头强度的影响.结果表明:随着胶层厚度的增加,胶接强度先增大后减小;在一定范围内随着搭接长度的增大而增大,呈非线性关系;与搭接面积呈线性关系,在搭接面积相同的情况下,可以通过增加搭接宽度减小搭接长度来增大接头强度;另外,胶结强度随夹具之间的距离变短而降低,随被粘物厚度的增大而增大.厚度达到一定程度,这种趋势变化趋于缓慢.
参考文献
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