Abstract
The stress analysis and optimization of carbon fiber composite laminates were carried out by using the finite element optimization design software Altair Optistruct. When the laminate bears the axial load, the mechanical properties of the laminate are studied. At the same time, the scheme design, preliminary design and detailed design are carried out, and the optimal design of the carbon fiber composite laminate is carried out. The design variables are the thickness of the laminates and the sequence of the laminates, and the constraints are volume fraction, maximum or minimum principal strain of the single layer. The objective optimization of the minimum compliance and the minimum mass of the laminated plate are carried out. The simulated strength of the optimized carbon fiber composite laminates was checked. The results show that after three stages of optimization, the compliance and the mass of carbon fiber composite laminates are reduced by 11.8% and 16%, respectively, the results of strength check and optimization are safe, and the optimization design is reasonable and reliable.
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