Topic
Sandwich-structured composite
About: Sandwich-structured composite is a research topic. Over the lifetime, 5853 publications have been published within this topic receiving 101126 citations.
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TL;DR: In this article, two aluminum foam sandwich panels were laser bent by means of a diode laser and two panels different in thickness were used in bending tests; the effect of the main process parameters (laser power and scan velocity) on the bending efficiency was investigated as well as the contribution of the panel skin, and the protective gas.
Abstract: Aluminum foam sandwich panels were laser bent by means of a diode laser. Two panels different in thickness were used in bending tests; the effect of the main process parameters (laser power and scan velocity) on the bending efficiency was investigated as well as the contribution of the panel skin, and the protective gas. As a result, a very good formability was observed for the laser processed panels.
33 citations
TL;DR: In this article, a quasi-static and low-velocity impact loading conditions were tested on thermoplastic fiber-metal laminates (FML) skins and an aluminum foam core.
Abstract: Sandwich panels manufactured using thermoplastic fiber-metal laminates (FML) skins and an aluminum foam core were tested under quasi-static and low-velocity impact loading conditions. The quasi-sta...
33 citations
33 citations
TL;DR: In this paper, a thermal-mechanical model is presented for calculating softening and failure of flammable sandwich composites under combined tension loading and one-sided unsteady-state heating by fire.
33 citations
TL;DR: In this paper, the lattice truss structures (LTS) are used for 3D-printing of sandwich panels and the absorption energy and failure mechanisms of lattice cells under low-velocity impact loads are investigated.
Abstract: Sandwich panel structures are widely used in aerospace, marine, and automotive applications because of their high flexural stiffness, strength-to-weight ratio, good vibration damping, and low through-thickness thermal conductivity. These structures consist of solid face sheets and low-density cellular core structures, which are traditionally based upon honeycomb folded-sheet topologies. The recent advances in additive manufacturing (AM) or 3D printing process allow lattice core configurations to be designed with improved mechanical properties. In this work, the sandwich core is comprised of lattice truss structures (LTS). Two different LTS designs are 3D-printed using acrylonitrile butadiene styrene (ABS) and are tested under low-velocity impact loads. The absorption energy and the failure mechanisms of lattice cells under such loads are investigated. The differences in energy-absorption capabilities are captured by integrating the load–displacement curve found from the impact response. It is observed that selective placement of vertical support struts in the unit-cell results in an increase in the absorption energy of the sandwich panels.
33 citations