Open AccessThe integration of structural mechanics into microstructure solidification modelling
Author(s) -
Peter Soar,
Anne Kao,
Georgi Djambazov,
N. Shevchenko,
Sven Eckert,
K. Pericleous
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/861/1/012054
Subject(s) - solver , bespoke , microstructure , continuum mechanics , mechanics , peridynamics , elasticity (physics) , coupling (piping) , problem solver , structural mechanics , materials science , computational mechanics , linear elasticity , statistical physics , computer science , finite element method , physics , thermodynamics , mathematics , metallurgy , mathematical optimization , computational science , composite material , political science , law
In situ structural mechanics are an often neglected area when modelling alloy microstructure during solidification, despite the existence of practical examples and studies which seem to indicate that the interaction between thermal or mechanical stresses and microstructure can have a significant impact on its evolution and hence the final properties at a macroscopic level. A bespoke structural mechanics solver using the finite volume method has been developed to solve the linear elasticity equations, with design choices being made to facilitate the coupling of this solver to run in situ with an existing solidification model. The accuracy of the structural mechanics solver is verified against an analytic solution and initial results from a fully coupled system are presented which demonstrate in a fundamental example that the interaction between structural mechanics and a solidifying dendrite can lead to a significant change in growth behaviour.