Micromechanical Modeling and Simulation in Multiphysics Processes of Ceramic Matrix Composites

Period of Performance: 08/26/2014 - 02/26/2015

$150K

Phase 1 SBIR

Recipient Firm

Micromechanics & Composites LLC
2520 Hingham Lane
Centerville, OH 45459
Principal Investigator

Abstract

An accuracy of the classical trial and error testing method of the new Ceramic Matrix Composite (CMC) processes and constructions is no longer be affordable in modern industry and science. However, physics-based computational tools and methodologies which are needed to optimize these processes can t provide a necessary accuracy without taking into account both the wide and detailed micromechanical modeling describing of microstructure evolution during processing as well as the final properties and performance in service. (i) propose and develop the linear and nonlinear micromechanical models of infiltration in the porous media consisting of random beds of cylinders; (ii) propose physics-based model for impregnation molding of particle-filled resin; (iii) propose and develop a dual scale porous medium containing two distinct scales of pores such as the fiber tows inside surrounding gaps. (iv) propose and develop the model of solidification with estimation of both the local stochastic residual stresses and effective failure envelope; (v) begin model validation by comparison to available CMC; and (vi) initiate implementation of the new model in software readily accessible to materials engineers.