Topology Optimization Applied to Crack Patterns in Drying Porous Material
2008 (English)Manuscript (preprint) (Other academic)
Based on topology optimization techniques, a model for crack formation indrying porous materials is developed. The state problem derived representsthe mulitphysic flow of a mixture of fluid (air) and moister. A topologyoptimization problem is defined, where the layout (topology) of cracks andporous material, as well as the length scale of the crack pattern are used asoptimization variables. The problem is solved using a two–stage continuationmethod, labelled phase I and phase II. In phase I, a relaxed version of theproblem is solved to generate“clever”initial guesses for phase II. In the secondphase, the full problem is solved using a ten–step procedure. Two examplesare provided showing the dependence on different problem parameters, and,given the limitations in the model, the results show nature–like trends.
Place, publisher, year, edition, pages
National CategoryFluid Mechanics and Acoustics
IdentifiersURN: urn:nbn:se:liu:diva-14855OAI: oai:DiVA.org:liu-14855DiVA: diva2:25359