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国际多尺度计算工程期刊
影响因子: 1.016 5年影响因子: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN 打印: 1543-1649
ISSN 在线: 1940-4352

国际多尺度计算工程期刊

DOI: 10.1615/IntJMultCompEng.2016014421
pages 149-171

BUCKLING ANALYSIS OF LAMINATED COMPOSITE MINDLIN PLATE MODEL BASED ON NEW MODIFIED COUPLE-STRESS THEORY AND FINITE ELEMENT METHOD

Chen Wanji
Key Laboratory of Liaoning Province for Composite Structural Analysis of Aerocraft & Simulation, Shenyang Aerospace University, Shenyang, LN 110136, PR China
Niu Hui
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

ABSTRACT

In this paper, a 21-degree of freedom three-node triangular element is introduced for buckling analysis of the laminated composite Mindlin plate model based on new modified couple-stress theory. The present element can satisfy C1 weakcontinuity conditions and C0 continuity conditions. Numerical examples have been used to illustrate how the present element not only captures the scale effects of microstructure with far more complex boundary conditions than analytical methods, but also predicts the critical buckling loads. Note that numerical results of the present element can coincide with analytical results in the case of simply supported rectangular plates.