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International Journal for Multiscale Computational Engineering
Impact-faktor: 1.016 5-jähriger Impact-Faktor: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN Druckformat: 1543-1649
ISSN Online: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.2014011286
pages 507-527

DISLOCATION CORE RECONSTRUCTION BASED ON FINITE DEFORMATION APPROACH AND ITS APPLICATION TO 4H-SiC CRYSTAL

Chen Wanji
Key Laboratory of Liaoning Province for Composite Structural Analysis of Aerocraft & Simulation, Shenyang Aerospace University, Shenyang, LN 110136, PR China
Yang Shengqi
State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
Li Xiaopeng
Department of Mechanical and Industrial Engineering, Southern Illinois University Edwardsville, Illinois 62025, USA

ABSTRAKT

Models of composite laminated plates based on new modified couple stress theory have been developed by authors; however, the investigation of the scale effect is limited to a simply supported rectangular plate subjected to bending loads of fw = q0 sin(πx/α) sin(πy/α). In this paper, a novel plate element based on new modified couple stress theory is presented to extend the study of the scale effects for more complex boundary conditions and load cases on various composite laminated plates such as the Reddy plate, the Mindlin plate, and the Kirchhoff plate. The present element is a refined triangular element in which the C1 weak-continuity condition and C0 continuity condition can be satisfied simultaneously. The numerical results show that the present element can capture the scale effects of microstructure with far more complex boundary conditions. Note that in the case of a simply supported rectangular plate the numerical results of the present element can coincide with analytical results in the existing literature.