确定层状复合材料界面结合强度的新模型

A New Model For Determining the Interface Bonding Strength in Layered Composite Materials

本文提出了一个确定层状复合材料界面结合强度的新模型,即由两种材料交替完全粘结在一起的复合梁。利用材料力学方法对这种梁进行了应力分析,包括正应力分析和剪应力分析。研究了两种情况:一种情况假设两种材料均是线弹性材料;另一种情况假设其中一种材料是纯线弹性材料。而另一种材料是理想弹塑性材料。本文给出的复合梁剪应力的计算公式为复合材料界面剪切强度的测定提供了比较精确的计算公式。

In the present paper, a new model, a layered composite beam, is presented for determining the interface bonding strength of materials. Normal stress analysis and shear stress analysis arc performed by means of the approach of materials mechanics. Two cases are investigated. One is that the two materials are assumed to be linear elastic ones. The other is that one of two materials is assumed to be linear elastic and the other, to be idealized elastic-plastic. The shear stress calculation formula given in this paper is a more precise formula for measuring the interface bonding strength of composite materials.