Three heat resistant cross-linked PVC foam plastics were prepared and their performances were compared with universal cross-linked PVC structural foam. The results show that these three heat resistant foams have higher glass transition temperatures (close to 100 °C) than universal structural foam (83.2 °C). Compared with the universal structural foam, the three heat resistant foams show much hi...

Abstract The role of interfaces and the controlling synthesis parameters graded dealloyed nanoporous metallic materials are investigated, focusing on dealloying front progression in complex precursor with multiple alloy compositions. Specifically, effects relative density chemical potential sputtered bilayer copper films explored two case studies: Cu–Al/Cu–Al Cu–Al/Cu–Zn. Cross-sectional scanni...

This article presents the theoretical analysis of composite electrical insulation, formed from layered dielectric materials and subjected to impulsive energization. The 1-D planar cylindrical geometries were considered, consisting an arbitrary number layers with relative permittivity conductivity. Analytical solutions have been successfully derived for time-dependent electric field inside <inli...

In this work, an experimental and numerical program was designed to evaluate the role of compressive strength, Fc, area reinforcing steel, As, on flexural behavior functionally graded reinforced concrete beams. Eighteen layered sections beams were tested with different strengths arrangement main steel. The result showed that minimum steel reinforcement higher strength in compression zone increa...

This paper presents an approach based on topological hierarchy to representation and subsequent fabrication of functionally graded multi-material (FGM) objects by layered manufacturing. The approach represents an FGM object by material control functions and discretisation of slice contours. Based on the topological hierarchy of slice contours, material control functions are associated with cont...

Aluminum foam has received considerable attention in various fields and is expected to be used as an engineering material owing to its high energy absorption properties and light weight. To improve the mechanical properties of aluminum foam, combining it with dense tubes, such as aluminum foam-filled tubes, was considered necessary. In this study, an aluminum foam-filled steel tube, which consi...