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| Perturbation stochastic Cell-Based smoothed finite element method for laminated composite plates |
| Received:January 28, 2013 Revised:September 23, 2013 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201404002 |
| KeyWord:Perturbation stochastic Cell-Based smoothed finite element method shear locking gaussian random field laminated composited plates |
| Author | Institution |
| 周立明 |
吉林大学 机械科学与工程学院, 长春 |
| 孟广伟 |
吉林大学 机械科学与工程学院, 长春 |
| 李鹏 |
吉林大学 机械科学与工程学院, 长春 |
| 李锋 |
吉林大学 机械科学与工程学院, 长春 |
| 李霄琳 |
吉林大学 机械科学与工程学院, 长春 |
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| Abstract: |
| The randomness is the inherent characteristics of the practical engineering structures, and it has great practical significance for the reliability design of the engineering structures to describe the random response and statistics of response of the structures with random parameters truly.The smoothed finite element formulations of laminated composite plates based on the first-order shear deformation theory were derived adopting quadrilateral element the based on Cell-Based smoothed finite element, and the demand of the mesh generation was decreased so that the elements are allowed to be of arbitrary shapes, the shear locking was eliminated by using discrete shear gap.The equilibrium equation of the perturbation random smoothed finite element and the numerical characteristics of structural random responses were derived by combining the perturbation method and random field theory.The random responses of the laminated composite plates with the random material properties were solved, and the numerical results indicate that the approach proposed is correct and feasible. |