Dynamic Compression Behavior of Lotus-Type Porous Iron

Masakazu Tane; Tae Kawashima; Keitaro Horikawa; Hidetoshi Kobayashi; Hideo Nakajima

doi:10.4028/www.scientific.net/MSF.658.193

Paper Titles

The Theoretical Research of Constitutive Property, Reactivity and FTIR of Chitosan
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Synthesis of Ti₃AlC₂ Powder by High Energy Ball Milling and High Temperature Heat Treatment
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Scale and Corrosion Inhibition Efficiency of a Novel Terpolymer
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Effect of Foaming Temperature on Pore Morphology of Al/AlN Composite Foam Fabricated by Melt Foaming Method
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Dynamic Compression Behavior of Lotus-Type Porous Iron
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Formation of Hollow and Porous Nanostructures of Iron Oxides via Oxidation of Iron Nanoparticles and Nanowires
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Fabrication of Lotus-Type Porous Magnesium with Anisotropic Directional Pores by Mold Casting Technique
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Fabrication of Lotus-Type Porous Al-Ti Alloys Using the Continuous Casting Technique
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Effect of Transfer Velocity on Porosity of Lotus-Type Porous Aluminum Fabricated by Continuous Casting Technique
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Dynamic Compression Behavior of Lotus-Type Porous Iron

Abstract:

Dynamic and quasi-static compression tests were conducted on lotus-type porous iron with porosity of about 50% using the split Hopkinson pressure bar method and universal testing machine, respectively.　In the dynamic compression parallel to the pore direction, a plateau stress region appears where deformation proceeds at nearly constant stress, while the plateau stress region does not appear in the quasi-static compression. The plateau stress region is probably caused by the buckling deformation of matrix iron which occurs only in the dynamic compression. In contrast, the compression perpendicular to the orientation direction of pores exhibits no plateau-stress regions in the both dynamic and quasi-static compression.