期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 42, 期 7, 页码 825-833出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2011.03.012
关键词
Buckling; Finite element analysis (FEA); Mechanical Testing
资金
- Georgia Space Grant Consortium
This research aims at investigating the bistable characteristics of unsymmetric cross-ply laminates resulting from thermally induced stresses while curing. The bistable characteristics are examined with a focus on the change in geometry for a subset of configurations, namely, rectangular, trapezoidal and triangular. To this end, these geometries are systematically investigated leading to a set of non-dimensional parameters establishing the values required for bistable behavior. A new apparatus is designed to measure the magnitude of the force required for snap-through and snap-back. The influence of friction at the supports of the tested panels is minimized by utilizing air cushion for frictionless motion. Predictions from a nonlinear finite element based methodology using the ABAQUS (TM) code are validated through comparisons with test data. Published by Elsevier Ltd.
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