1995 年 3 巻 1 号 p. 95-114
The thermal stresses problems of functionally gradient materials as one ofthe advanced high-temperature materials capable of withstanding the extremetemperature environments are discussed. One of the most important problemsof thermal stresses in the functionally gradient materials is how to decreasethermal stresses. An optimal composition problems of the materials in orderto decrease thermal stresses and thermal stress ploblems in the materials with acrack by fracture mechanics are treated in detail