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Metals 2012, 2(4), 399-410;

Characterization of Steel Foams for Structural Components

Department of Civil and Environmental Engineering, University of Massachusetts, 223 Marston Hall, 130 Natural Resources Road, Amherst, MA 01003, USA
Department of Civil Engineering, The Johns Hopkins University, 203 Latrobe Hall, 3400 N. Charles Street, Baltimore, MD 21218-2682, USA
Snell Engineering Center, Department of Civil and Environmental Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115-5000, USA
Author to whom correspondence should be addressed.
Received: 5 May 2012 / Revised: 30 August 2012 / Accepted: 17 October 2012 / Published: 1 November 2012
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Experimentally measured mechanical properties of hollow sphere steel foam are the subject of this paper. The characterization of the hollow sphere foam encompasses compressive yield stress and densification strain, compressive plastic Poisson’s ratio, and compressive unloading modulus, as well as tensile elastic modulus, tensile unloading modulus, tensile yield stress, and tensile fracture strain. Shear properties are also included. These tests provide sufficient information to allow calibration of a macroscopic, continuum constitutive model. Calibrated foam plasticity parameters are tabulated, and unique feature of foam plasticity are explained. Also, initial development of mesoscale simulations, which explicitly model voids and sintered hollow spheres, is reported. This work is part of a larger effort to help the development of steel foam as a material with relevance to civil engineering applications. View Full-Text
Keywords: steel foam; metal hollow sphere; experiment; tension; fracture; poisson’s ratio; panel steel foam; metal hollow sphere; experiment; tension; fracture; poisson’s ratio; panel

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Smith, B.H.; Szyniszewski, S.; Hajjar, J.F.; Schafer, B.W.; Arwade, S.R. Characterization of Steel Foams for Structural Components. Metals 2012, 2, 399-410.

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