Thermoelastic fracture analysis of porous metal foams under cold shock using the dual-phase-lag model

Some experimental evidence has proved that the Fourier heat conduction theory cannot precisely describe the transient thermal transport in porous media. This article employs the more generalized non-Fourier dual-phase-lag theory to investigate the thermoelastic and fracture responses of a porous copper foam plate containing an edge crack when the material is quenched by a cold thermal shock. The Laplace transform methodology and the numerical inversion scheme are adopted to deal with the equation’s time dependency. Parametric investigations are performed to reveal the impacts of the non-Fourier thermal lags, copper foam’s relative density, and the crack length, which would be beneficial to the thorough understanding and the development of the porous metal foams in thermal environments.