|
Abstract: The
damage initiation and development of laminated composites can be
simulated by progressive damage analysis. A 3D progressive damage model
and finite element method are used to analyze the damage process of
laminated composites with a hole under compressive load. The
matrix-cracking, fiber-matrix shear, delamination, and fiber breakage
are all considered. Based on the software of ANSYS, a parametric
modeling program is developed to predict the progressive damage process
and ultimate strength of laminated composites with any layer direction
angle and layer thickness. The validity of the analysis method and
program is proved by the comparison between the predicted result and
experimental data available in the literature. The predicted precision
of ultimate strength may be improved by the program, which provides
technical support for the design and use of laminated composites.
Key words: Laminated
composites Progressive damage Strength analysis Parametric
simulation
CLC No: TB33
Received 20050405,received
in revised form 20060119
|