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Spring-In Prediction of CFRP Part Using Coupled Analysis of Forming and Cooling Processes in Stamping
Jae-Chang Ryu1, Chan-Joo Lee2, Jin-Seok Jang3
1Department of Nanomechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea.
Abstract:
The spring-in phenomenon of the composite parts can affect the assembly process. This study aims to predict the spring-in phenomenon of a carbon fiber reinforced plastic (CFRP) part. Here, we predict the spring-in of the CFRP part using a coupled analysis of the forming and cooling processes during the stamping process. First, a simulation of the entire forming process, such as the transfer of the composite laminate, gravity analysis, and forming was performed to obtain the temperature distribution of the CFRP part. Subsequently, a finite-element (FE) simulation of the cooling process was conducted to predict the spring-in phenomenon of the shaped CFRP part using the temperature data obtained in the forming simulation. Finally, a CFRP part was manufactured and compared with the results of the FE simulation.
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