Evolutionary design of composite structures for thermal conductance and strength

Journal Article (Journal Article)

This is a study of the evolving design of a composite material with inserts that are free to be configured and distributed through the base material. Several classes of shapes of inserts are considered competitively: parallel plates, staggered plates, forks, chains and diamonds. The architecture evolves in two directions (with two objectives), high thermal conductance and mechanical strength (stiffness). Relative to the base material, the inserts have higher thermal conductivity and lower modulus of elasticity. As a consequence, better architectures emerge from the tradeoff between thermal conductance and strength, for example, chain and diamond shaped inserts. The two-objective performance further improves when the inserts are distributed nonuniformly through the base material, such that the high conductivity inserts are not placed in the regions with the highest stresses.

Full Text

Duke Authors

Cited Authors

  • Bejan, A; Almahmoud, H; Gucluer, S

Published Date

  • June 1, 2021

Published In

Volume / Issue

  • 125 /

International Standard Serial Number (ISSN)

  • 0735-1933

Digital Object Identifier (DOI)

  • 10.1016/j.icheatmasstransfer.2021.105293

Citation Source

  • Scopus