Evaluation of modulus of elasticity of composite metal foams by experimental and numerical techniques

Abstract The elastic behavior of Al–steel composite metal foams developed by casting technique was characterized by evaluating the modulus of elasticity through compression experiments, constitutive scaling equations and 2D finite element modeling. Experiments showed an elastic modulus of 10–12 GPa for Al–steel composite foams while the scaling laws predicted 3.5 GPa and 30 GPa as the lower and upper bounds of modulus of elasticity respectively. Two-dimensional finite element models of composite foams developed and analyzed assuming perfectly elastic materials, resulted in an elastic modulus of 10 GPa which is in good agreement with the experimental results.

[1]  Hak‐Joo Lee,et al.  Measuring the cell wall mechanical properties of Al-alloy foams using the nanoindentation method , 2008 .

[2]  C. Motz,et al.  Experimental Investigation of Mechanical Properties of Metallic Hollow Sphere Structures , 2008 .

[3]  A. Rabiei,et al.  A study on aluminum–steel composite metal foam processed by casting , 2007 .

[4]  Olaf Andersen,et al.  Novel Metallic Hollow Sphere Structures , 2000 .

[5]  Brigitte Kriszt,et al.  Handbook of cellular metals : production, processing, applications , 2002 .

[6]  Han Feng-lin INTRODUCTION OF MPIF《MATERIALS STANDARDS FOR PM STRUCTURAL PARTS.2007 EDITION》 , 2008 .

[7]  A. Rabiei,et al.  New Composite Metal Foams under Compressive Cyclic Loadings , 2007 .

[8]  M. Ashby,et al.  Metal Foams: A Design Guide , 2000 .

[9]  A. Rabiei,et al.  Fatigue in aluminum–steel and steel–steel composite foams , 2009 .

[10]  L. Gibson,et al.  Mechanics of hollow sphere foams , 2003 .

[11]  N. Fleck,et al.  Compression fatigue of a cellular Al alloy , 1999 .

[12]  A. Rabiei,et al.  Processing and Characterization of a New Composite Metal Foam , 2006 .

[13]  L. Gibson,et al.  The mechanical behaviour of interpenetrating phase composites — III: resin-impregnated porous stainless steel , 2001 .

[14]  Hilary Bart-Smith,et al.  On the mechanical performance of closed cell Al alloy foams , 1997 .

[15]  Processing and Development of a New High Strength Metal Foam , 2004 .

[16]  A. Rabiei,et al.  A study on processing of a composite metal foam via casting , 2005 .