Effect of autoclave process on the quality of thermoplastic cones manufactured using automated fiber placement technique

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Proceedings titleInternational SAMPE Technical Conference
Conference2011 SAMPE Spring Technical Conference and Exhibition - State of the Industry: Advanced Materials, Applications, and Processing Technology, 23 May 2011 through 26 May 2011, Long Beach, CA
SubjectAS4/PEEK; Autoclave process; Composite parts; Degree of cure; Experimental modal analysis; Fiber placement; Hand lay-up; Impulse excitations; Material property; Stiffness properties; Thermoplastic materials; Void contents; Finite element method; Modal analysis; Natural frequencies; Pressure vessels; Reinforced plastics; Stiffness; Quality control
AbstractThe quality of composite part, i.e. degree of cure, solidification, and void content, has direct effect on the resonant frequencies of the part. Therefore, this characteristic can be used for the purpose of quality control and acceptance of the sample. In order to see the effect of autoclave process on the stiffness properties of samples made by fiber placement technique, tensile and compression coupons were made out of advanced thermoplastic material (AS4/PEEK) using hand lay-up and autoclave process and stiffness properties obtained. Two conical sections were made by fiber placement technique and tested by impulse excitation of vibration to get natural frequencies. Finite element analysis was performed using material properties obtained from testing coupons. Natural frequencies were extracted. Comparison between the natural frequencies obtained using finite element method and experimental modal analysis was performed.
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AffiliationNational Research Council Canada (NRC-CNRC); Aerospace (AERO-AERO)
Peer reviewedYes
NPARC number21271117
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Record identifier2838c656-b85e-4b6f-b79e-3e1a3d431cff
Record created2014-03-24
Record modified2016-05-09
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