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Theoretical Development on Thermal Stress Problem for Metal Matrix Composite

金属基复合材料热应力问题的理论发展

基本信息

批准号：
62550081
负责人：
TANIGAWA Yoshinobu
金额：
$ 0.83万
依托单位：
University of Osaka Prefecture
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1988
项目状态：
已结题

项目摘要

The present research project entitled "Theoretical Development on Thermal Stress Problem for Metal Matrix Composite" have been carried out for two years from 1987 to 1988. In the present research project, we have treated three different thermal stress problems of multilayered laminated composite materials with metal matrix. One of them is concerned with thermal bending problem of multi-layered laminated beam, and another ones are thermoelastic behaviors of cross-ply or angle-ply laminated composite slab and thermal stress problems of multi-layered hollow circular cylinder. The research project obtained some excellent results and we can summarize as follows.W. we have developed theoretical analysis for the problem of multi-layered laminated hollow cylinder under the three different thermal conditions. One of which is plane axisymmetric problem due to uniformly distributed heat supply from the outer and inner surfaces. Second one is plane asymmetric problem due to non-uniform heat supply … More with respect to the circumferential direction from the both surfaces, and the last one is the three-dimensional axisymmetric problem due to non-uniform heat supply with respect to the axial direction. And then, we have carried out the numerical calculations for the abovementioned three cases. The numerical results obtained show some interesting and characteristic thermoelastic behaviors for the metal matrix laminated composite. Moreover, as one of the approximated method, we have successfully adapted the analytical results for the multi-layered laminated composite cylinder into the problem of the hollow cylinder of non-homogeneous materials, and carried out the numerical calculations, and evaluated the effect of the thermal stress relaxation characters for such non-homogeneous materials. 2. We have treated the thermoelastic behaviors of infinitely long cross-ply or angle-ply laminate composite slab under the thermal conditions of symmetric or non-symmetric heat supply from the upper and lower surfaces, and examined the effect of ply angle of the slab and orthotropic material properties affected on the thermal deformations and the thermal stress distributions of the slab. Less

本研究课题“金属基复合材料热应力问题的理论发展”已于1987 ~ 1988年进行了两年。在本研究计画中，我们处理了三种不同的金属基多层复合材料的热应力问题。其中一个问题是多层复合材料层合梁的热弯曲问题，另一个问题是正交铺设或角铺设复合材料层合板的热弹性问题和多层空心圆柱的热应力问题。本研究项目取得了一些优异的成果，我们可以总结如下.本文对三种不同热状态下的多层叠层空心圆柱体问题进行了理论分析。其中之一是由于外表面和内表面均布供热引起的平面轴对称问题。第二类是由于非均匀供热引起的平面不对称问题 ...更多信息最后一个是由于相对于轴向的非均匀供热引起的三维轴对称问题。然后，我们对上述三种情况进行了数值计算。所得数值结果显示了金属基层合复合材料一些有趣且特征的热弹性行为。此外，作为近似方法之一，我们成功地将多层复合材料层合圆柱体的解析结果应用到非均匀材料空心圆柱体的问题中，并进行了数值计算，评估了非均匀材料热应力松弛特性的影响。2.本文研究了无限长正交铺设或角铺设复合材料层合板在上下表面对称或非对称供热条件下的热弹性行为，考察了板的铺层角度和正交各向异性材料性质对板的热变形和热应力分布的影响。少