Investigation of Mild Steel Thin-Wall Tubes in Unfilled and Foam-Filled Triangle, Square, and Hexagonal Cross Sections Under Compression Load
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Abstract
This study has examined proposed structures with mild steel-reinforced LM30 aluminum (Al) alloy having diversely unfilled and 10 wt.% SiCp composite foam-filled tubes for improving axial compression performance. This class of material has novel physical, mechanical, and electrical properties along with low density. In the present experiment, Al alloy foams were prepared by the melt route technique using metal hydride powder as a foaming agent. Crash energy phenomena for diverse unfilled and foam-filled in mild steel thin-wall tubes (triangular, square and hexagonal) were studied as well. Compression deformation investigation was conducted at strain rates of 0.001-0.1/s for evaluating specific energy absorption (SEA) under axial loading conditions. The results were examined to measure plateau stress, maximum densification strain, and deformation mechanism of the materials. Specific energy absorption and total energy absorption capacities of the unfilled and filled sections were determined from the compressive stress–strain curves, which were then compared with each other.
Keywords
compression test diverse structures energy absorption strain rate thin-wall tubeNotes
Acknowledgments
One of the authors, Dipen Kumar Rajak, gratefully acknowledges the experimental support of LWMM group CSIR-AMPRI, Bhopal. The authors thank Director, CSIR-AMPRI Bhopal and Indian Institute of Technology (Indian School of Mines) Dhanbad for giving permission to publish this research work. The technical support of the CSIR-AMPRI Bhopal during the Ph.D. research program of Dipen Kumar Rajak is highly appreciated.
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