Materials, Volume 9, Issue 5 (May 2016) – 96 articles
Cover Story (view full-size image): The Gibson–Ashby relation for porous materials has been used for over 20 years to infer the elastic modulus of foams. However, one of its limitations is that it does not take the pore size into account. In this work, molecular dynamics simulations of spherical indentation on single crystalline copper reveal that the pore size can be introduced in the Gibson–Ashby relation as a dimensionless parameter to better describe the elastic behavior of this type of materials. View the paper
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