Thermo-Mechanical Characteristics of a Sandwich Cylindrical Shell with Entangled Metallic Wire Mesh: Numerical and Experimental Analysis

As a novel lightweight composite structure with notable mechanical resistance and thermal insulation characteristics in high-temperature environments, the sandwich cylindrical shell with entangled metallic wire mesh (SCS-EMWM) has been growing interest in industrial applications. This study focuses on investigating the thermo-mechanical behavior of the SCS-EMWM in high-temperature environments. The static mechanical properties of entangled metal wire mesh (EMWM) are first characterized, and the macroscopic mechanical properties are identified using the Ogden-Mullins model. Subsequently, the deformation modes at different densities and temperatures are analyzed through theoretical and finite element methods. The radial compression test of SCS-EMWM is performed to characterize its energy dissipation (Delta W), loss factor (eta), and secant stiffness (K). The quasi-static loading-unloading results of the EMWM reveal a positive correlation between temperature, density, and the mechanical behavior. In addition, as the density and temperature increase, the peak load of SCS-EMWM continuously increases from 20 to 200 N. Under high-temperature conditions, the radial compression test of SCS-EMWM reveals a significant concurrence between experimental and simulation results regarding load variations. Furthermore, in comparison to EMWM, the loss factor of SCS-EMWM exhibits an approximate increase of 0.1 and shows a positive correlation with temperature, while it decreases with increasing density. This study focuses on investigating the thermo-mechanical behavior of the sandwich cylindrical shell with entangled metallic wire mesh (SCS-EMWM) in high-temperature environments. The numerical and experimental methods are applied to systematically analyze the high-temperature state of its energy dissipation, loss factor, and secant stiffness.image (c) 2023 WILEY-VCH GmbH