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| Research on the Resin Flow Process of the Composite Pipe Key-Part in Vacuum Assisted Resin Transfer Molding |
| WANG Changchun, LIU Jianguang, YUE Guangquan, ZHAO Qinghua |
( Beijing Key Laboratory of Civil Aircraft Structures and Composite Materials,
COMAC Beijing Aeronautical Science & Technology Research Institute, Beijing 102211, China ) |
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Abstract The composite pipe key-part in vacuum assisted resin transfer molding (VARTM) process was studied,
in which the resin flow processes of four possible resin injection methods were simulated with the finite element/control
volume method and the locations of inlet-gates and outlet-vents were estimated by comparing the needed injection time and
resin flow front shapes. Following results can be obtained from the simulation process: the line-injection method can obtain
a much better resin flow front shape as comparing with the point-injection method, which is the very reason of choosing
the line-injection method to obtain the composite pipe scaled-down and whole scale key-parts. The actual experiments
to validate the simulation results were conducted with the testing result that was implemented on the scale-down and wholescale
composite pipe structure using the determined resin injection method. The simulation results show good agreement
with that of the tests.
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2017, 
