中空球の断面-様加熱により生ずる熱応力波の解析

抄録

When a hollow sphere is subjected suddenly to a uniform temperature rise over its cross section, stress waves occur at the internal and external surfaces the moment thermal impact is applied. The stress wave at the internal surface proceeds radially outward, while the one at the external surface proceeds radially inward. During instantaneous heating, the interfering effects of these waves can cause a very high dynamic stress for both tension and compression in the sphere. This paper analyses the effects of these waves precisely using the ray theory. The numerical results indicate the variations in the dynamic stresses in a sphere with time.