Abstract
This study focuses on the uniaxial compressive behaviour of thin-walled Al alloy tubes filled with pyramidal lattice material. The mechanical properties of an empty tube, Al pyramidal lattice material, and pyramidal lattice material-filled tube were investigated. The results show that the pyramidal lattice material-filled tubes are stronger and provide greater energy absorption on account of the interaction between the pyramidal lattice material and the surrounding tube.
Highlights
Thin-walled tube structures act to buffer energy and as energy-absorbing components, have a wide range of potential applications in transportation and aerospace engineering [1,2,3]
A thin-walled tube filled with a cellular structure is used to improve the bearing capacity and energy absorption characteristics of the structure
Aluminum foam has the characteristics of low density, high porosity, high specific strength, and high specific stiffness, which is an ideal energy absorbing material [7,8]
Summary
Thin-walled tube structures act to buffer energy and as energy-absorbing components, have a wide range of potential applications in transportation and aerospace engineering [1,2,3]. A thin-walled tube filled with a cellular structure is used to improve the bearing capacity and energy absorption characteristics of the structure. Aluminum foam has the characteristics of low density, high porosity, high specific strength, and high specific stiffness, which is an ideal energy absorbing material [7,8]. Researchers have attempted to improve the mechanical and energy absorption properties of thin-walled metal tubes and aluminum foam by filling the metal tube with aluminium foam [6]. Duarte et al studied the material properties of closed cell aluminium foam embedded in a single metal tube [9]. Some research results on aluminum foam-filled thin-walled structures have been obtained. FFigiugruer2e. 2Py. rPaymriadmlaitdticleatmtiacteermiala-tfiellreidalt-ufiblelewdithubdeiffwerietnht dreilfafteivrendtenresiltaietisvoef dlaettnicseitmieasteorfialla:ttice ma (a0).208.2;8(;b(b))00..3333;; ((cc))00.4.14.1
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