Axial crushing analysis of empty and foam-filled brass bitubular cylinder tubes

Critical Buckling Load of Thin-Walled Plastic Cylinders in Axial and Radial Loading: Overview and FEA Case Study

“…Ashrafi et al [45], Tuwair et al [46], and Boccaccio et al [6] explored the use of foam to stiffen and strengthen honeycomb panels, particularly for aerospace applications. Several studies were also performed using polyurethane foam to strengthen various types of conical and cylindrical tubes, including those made from aluminum [47,48], brass [49], and steel [45,50]. Surprisingly, no previous studies were found that examined the foam filling and strength testing of structures made from plastics, even though many thin-walled plastic structures are manufactured and used.…”

Review: deformation and optimisation crashworthiness method for foam filled structures

“…As with the two concentric tubes, Zhang et al (2012) examined the issue of thin-walled double structural designs filled with aluminium foams. While, Fang et al (2014) explored the design of the circular double-blinded structure and Azarakhsh et al (2015) examined double circular tubes with foam filled copper materials, subject to quasi-static axis loading. For different loading angles, Yang and Qi (2013) and Zhang et al (2014) assessed the optimum value of crashworthiness of each structure, (i.e.…”

Numerical analysis of the impact resistance in aluminum alloy bi-tubular thin-walled structures designs inspired by beetle elytra

“…Four simple geometries such as hexagon, octagon, 12-sided, and 16-sided star have been already evaluated from an experimental point of view [6], and the results have shown that an increase in the number of inward corners tends to improve the energy absorption capabilities. Other geometries have also been extensively studied, such as circular [7,8], square [9,10], rectangular [11,12,13], hexagonal [14,15,16], pyramidal [17]and conical tubes [18,19,20]. More recently two novel geometries with different materials (pentagon and cross-type section) have been also investigated [21].…”

“…[32], the shape and the size of the inner tubes, and the location of the diaphragms [33]. Other research papers [7,34,35]have dealt with foam-filled bi-tubular circular tubes subjected to compression loading, and related parameter conditions like the geometry and the loading type. A novel bi-tubular structure filled with a honeycomb structure with a polygonal configuration has also been investigated numerically.…”