Paper Title:
Elastic and Plastic Deformation Behaviors of Lotus-Type Porous Copper
  Abstract

The elastic and plastic deformation behaviors of lotus-type porous copper (lotus copper) with cylindrical pores oriented in one direction were investigated using two acoustic methods (resonant ultrasound spectroscopy and acoustic emission method). All the independent components of elastic stiffness were determined by resonant ultrasound spectroscopy combined with electromagnetic acoustic resonance method, which revealed that the Young’s modulus exhibits the anisotropy originating from the anisotropic porous structure and anisotropic matrix texture. The porosity dependence of the anisotropic Young’s modulus can be calculated by the micromechanics modeling based on effective-mean-field theory. The tensile deformation behavior of lotus copper was analyzed by acoustic emission method, which revealed that many burst acoustic emission signals are detected during the tensile deformation. This implies that many cracks are formed during the tensile deformation.

  Info
Periodical
Edited by
Hyungsun Kim, JianFeng Yang, Tohru Sekino, Masakazu Anpo and Soo Wohn Lee
Pages
332-335
DOI
10.4028/www.scientific.net/MSF.658.332
Citation
M. Tane, H. Nakajima, "Elastic and Plastic Deformation Behaviors of Lotus-Type Porous Copper", Materials Science Forum, Vol. 658, pp. 332-335, 2010
Online since
July 2010
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$32.00
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