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http://dx.doi.org/10.7234/composres.2018.31.6.404

Thermal Deformation of Carbon Fiber Reinforced Composite by Cure Shrinkage  

Choi, Eun-Seong (Aircraft Structural Design Lab, Department of Aerospace Engineering, Pusan National University)
Kim, Wie-Dae (Department of Aerospace Engineering, Pusan National University)
Publication Information
Composites Research / v.31, no.6, 2018 , pp. 404-411 More about this Journal
Abstract
As the autoclave process progresses in a given cure cycle, residual stress in the composite product is induced by cure shrinkage of the resin. As a result, It generates the thermal deformation such as spring-in and warpage, and the inaccuracy of the final product increases. It is important to predict thermal deformation in aerospace parts which require precise fabrication. The research has been done on predicting and grasping curing process of composite material. In this study, the cure mechanism of composite materials according to the process is predicted through finite element analysis, and the effect of cure shrinkage on thermal deformation generated by the process is analyzed.
Keywords
Composite material; Cure shrinkage; Spring-in; Finite element analysis;
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