Senior Project Advisor
Thermoplastic Composite, Crystallization Kinetics, Process Modeling
Thermoplastic composites are of rapidly growing interest to the aerospace industry due to their potential to save energy through processing or material through recycling or repair. Process modeling is a computational-based approach for predicting material behavior and quality outcomes for different manufacturing processes. In effect, process modeling reduces both the risk and cost associated with manufacturing composite parts. Process modeling of thermoplastic composites is largely still ill-defined, although a model structure has been defined and validated with carbon fiber poly(ether ether ketone) (CF/PEEK) composite prepreg. Carbon fiber poly(ether ketone ketone) (CF/PEKK) was subjected to a series of characterization experiments CF/PEKK and neat PEKK samples were characterized by modulated differential scanning calorimetry (MDSC), dynamic mechanical analysis (DMA), rheology, and guarded heat flow metrology. Data were analyzed and prepared for building the constitutive models for crystallization and melting kinetics, specific heat capacity, stress relaxation, modulus development, flow characteristics, thermal conductivity, coefficient of thermal expansion, and density. Challenges associated with carrying out a full suite of characterization experiments were identified and the material behavior observed for CF/PEKK was described, providing a framework for characterizing high-performance thermoplastic prepreg for process modeling.
Engineering and Design
Leo, Tanner M., "Characterization of Carbon Fiber PEKK Thermoplastic Prepreg for Process Modeling" (2022). WWU Honors College Senior Projects. 616.
Subjects - Topical (LCSH)
Thermoplastic composites; Crystallization; Mechanics, Analytic
Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author’s written permission.