Thermo-mechanical performances of elastic–porous materials with metallic wire mesh structures

Abstract

Elastic–porous lightweight materials with metallic wire mesh structures are increasingly being used for vibration–reduction and thermal conduction under high temperatures or other harsh conditions. This is attributed to their special meso–scale functional structures. However, little is known about the intrinsic relationship between thermo-mechanical performances and the porous structure. We synthesized elastic–porous materials with metallic wire mesh (EPMWM) structures using entangling and weaving technologies. In addition, numerical models of microstructures were established, and experimentally validated using quasi–static and dynamic tests. Theoretical and experimental analyses of heat transfer behavior showed that the damping energy consumption of the entangled metallic wire mesh structure was better than that of the woven metallic wire mesh structure to a certain load condition. Moreover, pore air in EPMWM significantly affected the overall thermal conductivity, especially at high temperatures, due to the heat radiation between metallic wires.