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| Study on the Cure-Induced Deformation and Application of Compensation Technology of U Shaped Composite Structure in Autoclave Process |
| LIU Wangzi, WANG Xinwen, GUAN Haixin, LI Meng, XU Piao, CHEN Zhengsheng |
| ( AVIC Changhe Aircraft Industry (Group) Corporation LTD., Jingdezhen 333002, China ) |
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Abstract The U shaped structure of composite material was studied. Simulation technology was used for the
temperature distribution of typical U shape part in autoclave toolings, and the temperature distribution of the tool and part
in different periods. Under the influence of the heat transmission and distortion of tool, internal heat transmission, curing
degree, ultimately distortion and residual stress of composite part were simulated. According to the results of the simulation,
we optimize the structure of tool as well as the curing parameter, establish the compensating scheme for tool, thereby
improving issues of part, including the solidification and thermal deformation. Based on analysis results, the compensating
scheme had been established and validated. Result shows that the deformation between compensation and the theory shape
is 1.37mm. The feasibility of compensation is verified. Profile compensation can be used for improving the manufacturing
precision of composite component.
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2017, 
