Manufacturing study of unidirectional AS4D/PEKK tape

Conchúr Ó Brádaigh, Rory Canavan, James Lee, Jean Marie Bocquel, Patrick Mallon

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The manufacturing characteristics of unidirectional AS4D reinforced PEKK tape has been studied with a view to using this composite system for high performance applications. The quality of components produced by two processing routes, press forming and autoclave moulding, have been compared. The first stage of the assessment focused on flat laminates manufactured by using both techniques. Mechanical property and physio-chemical analyses have been carried out on coupons extracted from these panels. The second phase of this investigation evaluated dimensional variability. A series of "L-shaped" components have been produced to determine values for spring-back and to allow radii integrity to be assessed. The same material system has been employed in the design and manufacture of 'top-hat' stringer components for aerospace applications. The results from the dimensional variability analysis outlined above were used in the tool design for the structures in order to meet stringent part tolerance and quality specifications. Mechanical, physical and non-destructive inspection testing was undertaken for process control. The resulting analysis demonstrates the repeatability and stability of measurements achieved over a 'quasi' production schedule for thermoplastic composite components.

Original languageEnglish
Title of host publicationInternational SAMPE Technical Conference
Publication statusPublished - 2008
Event2008 SAMPE Fall Technical Conference and Exhibition - Multifunctional Materials: Working Smarter Together, SAMPE '08 - Memphis, TN, United States
Duration: 8 Sep 200811 Sep 2008


Conference2008 SAMPE Fall Technical Conference and Exhibition - Multifunctional Materials: Working Smarter Together, SAMPE '08
Country/TerritoryUnited States
CityMemphis, TN


  • Fiber composite materials-carbon
  • Manufacturing/Fabrication/Processing
  • Resin/Materials-Thermoplastics


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