Elastomer Characterization Method for Trapped Rubber Processing
Journal article, 2020

The increasing high-volume demand for polymer matrix composites (PMCs) brings into focus the need for autoclave alternative processing. Trapped rubber processing (TRP) of PMCs is a method capable of achieving high pressures during polymer matrix composite processing by utilizing thermally induced volume change of a nearly incompressible material inside a closed cavity mold. Recent advances in rubber materials and computational technology have made this processing technique more attractive. Elastomers can be doped with nanoparticles to increase thermal conductivity and this can be further tailored for local variations in thermal conductivity for TRP. In addition, recent advances in computer processing allow for simulation of coupled thermomechanical processes for full part modeling. This study presents a method of experimentally characterizing prospective rubber materials. The experiments are designed to characterize the dynamic in situ change in temperature, the dynamic change in volume, and the resulting real-time change in surface pressure. The material characterization is specifically designed to minimize the number and difficulty of experimental tests while fully capturing the rubber behavior for the TRP scenario. The experimental characterization was developed to provide the necessary data for accurate thermomechanical material models of nearly incompressible elastomeric polymers for use in TRP virtual design and optimization.

autoclave alternative





reinforced polymer composites


Pooria Khalili

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Thomas Boulanger

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Brina Blinzler

Chalmers, Industrial and Materials Science, Material and Computational Mechanics


2073-4360 (eISSN)

Vol. 12 3 686

Trapped Rubber Processing: High Performance/ High Rate Composite Processing

VINNOVA (2018-04261), 2018-12-01 -- 2019-11-30.

Driving Forces

Sustainable development

Subject Categories

Aerospace Engineering

Textile, Rubber and Polymeric Materials

Other Materials Engineering


C3SE (Chalmers Centre for Computational Science and Engineering)

Chalmers Materials Analysis Laboratory

Areas of Advance

Materials Science





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