Skip to main content Accessibility help

Characterization of Porous Gasar Aluminum

  • R. J. Bonenberger (a1), A. J. Kee (a2), R. K. Everett (a3) and P. Matic (a3)


Experimental and numerical analyses were performed on porous aluminum samples to evaluate microstructure and mechanical properties. Experiments consisted of tensile tests on dog-bone specimens containing 9 to 17% porosity, which were instrumented with axial and transverse extensometers. Properties measured included Young's modulus, Poisson's ratio, proportional limit, 0.2% offset yield strength, and ultimate tensile strength. Results indicated that Young's modulus and all strengths decreased with increasing porosity, but Poisson's ratio remained constant with porosity. For the numerical simulations, 3-D, mesoscale, multilayer models were constructed to evaluate the effects of pore morphology and interactions on material properties. The models allowed systematic spatial positioning of the pore within the cell and the ability to form solid zones. Pore arrangement, the effect of constraint, and gradients on the stress state were investigated. By using different combinations of hex cells as building blocks, several complicated microstructural arrangements were simulated.



Hide All
1. Shapovalov, V. I. and Timchenko, A. G., Phys. Met. and Metall. 76 (3), 335337 (1993).
2. Schapovlov, V. I., MRS Bull. 19 (4), 2428 (1994).
3. Wolla, J. M. and Provenzano, V. in Advances in Porous Materials, edited by S. Komarneni, D. Smith, and J. Beck (Mater. Res. Soc. Proc. 371, Pittsburgh, PA, 1995) pp. 377382.
4. Kee, A. and Matic, P., Mater. Sci. Engr. A224, 8595 (1995).
5. Kee, A., Matic, P., and Wolla, J., Mater. Sci. Engr. A230, 1424 (1997).
6. Kee, A. and Matic, P., in ABAQUS User's Conf. Proc. (Hibbitt, Karlsson, & Sorensen, Pawtucket, RI, 1996) pp. 403417.
7. ASTM E8, in Annual Book of ASTM Standards, v. 3.01 (ASTM, Philadelphia, PA, 1993) pp. 130149.
8. Bell, J. F., in Handbuch der Physik, v. 6, Mechanics of Solids I, edited by Fhigge, S. and Truesdell, C. (Springer-Verlag, New York, NY, 1973) pp. 9297; 147–148.
9. Everett, R. K., Ph.D. dissertation, University of Maryland, 1996.
10. ABAQUS/Explicit User Manuals: Ver. 5.6 (Hibbitt, Karlsson, & Sorensen, Pawtucket, RI, 1996).
11. ABAQUS/Post Manual: Ver. 5.6 (Hibbitt, Karlsson, & Sorensen, Pawtucket, RI, 1996).

Characterization of Porous Gasar Aluminum

  • R. J. Bonenberger (a1), A. J. Kee (a2), R. K. Everett (a3) and P. Matic (a3)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed