Numerical simulation and experimental validation on fabrication of nickel-based superalloy Kagome lattice sandwich structures

Abstract

L attice sandwich structures composing of panels and lattice cores have been paid more and more attention in recent years. The lattice sandwich structures possess structural characteristics of lightweight, high specific strength and stiffness, as well as functional characteristics such as vibration and noise reduction, energy absorption and heat dissipation. Therefore, it is considered as one of the most promising new generation lightweight structures [1, 2]. Among them, nickel-based superalloy lattice sandwich structures have a broad application prospect in the aerospace field due to their lightweight and high temperature resistance. At present, research of the lattice sandwich structures are mainly focused on mechanical analysis and preparation processes. In order to obtain excellent performance, various representative unit cell structures have been