New variational-asymptotic formulations for 3-D stress analyses of laminated composite shells with a circular hole |
| |
Authors: | Pinhas Bar-Yoseph Jacob Avrashi |
| |
Institution: | (1) Computational Mechanics Group and Material Mechanics Laboratory, Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, 32000 Haifa, Israel |
| |
Abstract: | A new approach for three-dimensional stress analyses in composite cylindrical shells is presented. The method of composite expansions along with Hellinger-Reissner variational formulation is employed to derive the interior and edge layer problems for high order approximations. Classical assumptions have been justified and new approximations have been established. These formulations are directed especially towards, new high integrity mixed-hybrid finite element schemes. The expository examples chosen are of cross-ply and angle-ply laminated shells. The circumferential location of the delamination failure initiation, for angle-ply laminates containing a circular hole, is within a sector located symmetrically around the perpendicular direction to the applied load. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|