The improvement of stratified method about thermal stress of functionally gradient material thick plates
Received:November 21, 2007  
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DOI:10.7511/jslx20096034
KeyWord:stratified method  FGM thick plates  thermal and mechanical coefficient  thermal stress
     
AuthorInstitution
田云德 西华大学 建筑与土木工程学院,成都
秦世伦 四川大学 建筑与环境学院,成都
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Abstract:
      In order to produce better convergence and higher precision on stratified calculation of Functionally Gradient Material (FGM) thick plates, the method which the thermal and mechanical properties of Functionally Gradient Material thick plates layer-each has the same exponential law dependence on the thickness-coordinate is being used. It smoothes impulsive thermal and mechanics coefficient which caused by the thick plates layer-each of uniformity law, and it named exponential finite stratified method. Through examples, the result is compared the thick plates layer-each of the exponential law with the thick plates layer-each of uniformity law, under 0.1 precision, the layers of the exponential stratified method is of 250% than the uniformity stratified method, and along with the exaltation of the accuracy, the differing multiple of layers is greater.