Behavior of composite advanced pore morphology foam

Abstract

The mechanical characterization of advanced pore morphology (APM) foam, consisting of sphere-like metallic foam elements, is very limited since APM foam has been developed only recently. The purpose of this research was thus to determine the behavior of APM spheres and its composites when subjected to compressive loading. Single metallic APM spheres have been characterized with experimental testing and computational simulations, providing the basic properties and knowledge for an efficient composition of composite APM foam structures. Then, the APM foam elements were molded with epoxy matrix resulting in new composite structures. These composites have been adhered together with the epoxy resin achieving partial and syntactic morphology. The mechanical characterization of composite APM foam structures was based on experimental testing results with free and confined boundaries. The results of the performed research have shown valuable mechanical properties of the composite APM foam structures. Furthermore, they offer new possibilities for their use in general engineering applications.

Mechanical Properties of Advanced Pore Morphology Foam Composites

“…It is thus understandable that the development of cellular materials and their manufacturing techniques is orientated towards the production of cellular materials where the topology and morphology could be controlled, resulting in more regular and homogeneous structures. Such developments led to metallic hollow sphere structures, advanced pore morphology foam, lotus-type porous metals and wire-woven bulk Kagome structures [4,[9][10][11][12][13].…”

“…Such sandwich structures have an increasing relevance in various engineering applications due to their high stiffness, strength and reduced mass (light-weight). In some cases single cellular material elements (metallic hollow sphere structures, advanced pore morphology foam) are joined together using different technologies such as sintering, soldering and adhering [9,11,14]. Adhering provides the most economical way of joining and allows for further cost reduction and therefore the expansion of potential applications (Figure 4.3).…”

“…The experimental testing of single APM foam elements has been performed for quasi-static loading conditions [11,50,51,53,54] and for dynamic loading conditions [11,50]. The following section comprises the mechanical properties of single APM foam elements given in [11,50].…”

“…The following section comprises the mechanical properties of single APM foam elements given in [11,50]. The experiments were performed on the servo-hydraulic testing machine INSTRON 8801 under quasi-static and dynamic uni-axial compressive loading conditions.…”

“…Such a computational approach (Figure 4.12) and their evaluation is described by Vesenjak et al [11,50].…”