Failure Mechanisms and Scaling Laws of Nanoporous Aluminum: A Computational Study
N Winter and M Becton and LY Zhang and XQ Wang, ADVANCED ENGINEERING MATERIALS, 18, 632-642 (2016).
Recent nanomechanical experiments and simulations reveal a ligament size-dependent effect on the strength of nanowires, nanocolumns, and nanofoams. Here, we show the failure mechanism and scaling laws of nanoporous aluminum (np-Al) using a molecular dynamics case study. We develop scaling laws for Young's modulus, yield strength, ultimate strength, and toughness with respect to relative density and ligament diameter for np-Al. Our findings offer useful insights into the knowledge of nanoporous metals' mechanical properties in order to support material scientists' intention of developing fully comprehensive scaling laws for nanoporous metals.
Return to Publications page