Session: 12-23-01: Symposium on Multiphysics Simulations and Experiments for Solids

Paper Number: 145794

145794 - Multiphysics Modeling and Experimental Characterization of Process Induced Residual Deformations in Frontal Polymerization 

Frontal polymerization (FP) stands out as a swift and energy-efficient method for producing thermoset polymers and composites. This process relies on a self-propagating reaction front to rapidly cure the polymer through the exothermic heat of polymerization, eliminating the need for an external heat source. The versatility of FP has sparked interests in various applications, prompting a pressing need to comprehend material evolution and residual deformation throughout the process, crucial for optimizing FP-based manufacturing. In this presentation, a comprehensive exploration encompassing both experimental and numerical studies to address this demand will be presented.

The experimental investigation focuses on characterizing the temperature and cure-dependent properties of mono/poly-dicyclopentadiene and measuring the strain evolution during frontal polymerization using digital image correlation (DIC). Building upon the experimental findings, a coupled thermo-chemo-mechanical model has been developed to accurately capture measured residual strains. Furthermore, this model facilitates the exploration of pre-heating strategies aimed at mitigating residual deformations, particularly at locations where two fronts merge. This integrated approach offers valuable insights into understanding and optimizing the FP process for thermoset polymer and composites manufacturing.

Presenting Author: Zhuoting Chen University of Wyoming

Presenting Author Biography: Multiphysics modeling of advanced manufacturing

Authors:

Zhuoting Chen University of Wyoming
Behrad Koohbor Rowan University
Xiang Zhang University of Wyoming
Leon Dean University of illinois urbana-champaign
Philippe Geubelle University of illinois urbana-champaign
Nancy Sottos University of illinois urbana-champaign