THREE-DIMENSIONAL STATIC ANALYSES FOR FGM PLATES WITH MEDIUM COMPONENTS AND DIFFERENT NET STRUCTURES  

作　　者：Hongmei Cheng Zhiyuan Cao 

机构地区：[1]State Key Laboratory for Geomechanics & Deep Underground Engineering, School of Mechanics, Architecture and Civil Engineering, China University of Mining and Technology, Xuzhou 221008, China [2]School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China

出　　处：《Acta Mechanica Solida Sinica》2010年第2期167-174,共8页固体力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.10432030);the National Youth Science Foundation of China (No.10802091);the Scientific and Technical Foundation of China University of Mining and Technology (No.2007B013)

摘　　要：A new microelement method for the analyses of functionally graded structures was proposed. The key of this method is the maneuverable combination of two kinds of elements. Firstly, the macro elements are divided from the functionally graded material structures by the normal finite elements. In order to reflect the functionally graded distributions of materials and the microconstitutions in each macro-element, the microelement method sets up the dense microelements in every macro-element, and translates nodes to the same as the normal finite elements by the degrees of freedom of all microelemental the compatibility conditions. This microelement method can fully reflect the micro constitutions and different components of materials, and its computational elements are the same as the normal finite elements, so it is an effective numerical method for the analyses of the functionally graded material structures. The three-dimensional analyses of functionally graded plates with medium components and different micro net structures are given by using the microelement method in this paper. The differences of the stress contour in the plane of functionally graded plates with different net microstructures are especially given in this paper.A new microelement method for the analyses of functionally graded structures was proposed. The key of this method is the maneuverable combination of two kinds of elements. Firstly, the macro elements are divided from the functionally graded material structures by the normal finite elements. In order to reflect the functionally graded distributions of materials and the microconstitutions in each macro-element, the microelement method sets up the dense microelements in every macro-element, and translates nodes to the same as the normal finite elements by the degrees of freedom of all microelemental the compatibility conditions. This microelement method can fully reflect the micro constitutions and different components of materials, and its computational elements are the same as the normal finite elements, so it is an effective numerical method for the analyses of the functionally graded material structures. The three-dimensional analyses of functionally graded plates with medium components and different micro net structures are given by using the microelement method in this paper. The differences of the stress contour in the plane of functionally graded plates with different net microstructures are especially given in this paper.

关 键 词：functionally graded materials medium components different net structures three-dimensional analyses microelement method span-scale analyses 

分 类 号：TU457[建筑科学—岩土工程] TB34[建筑科学—土工工程]