Browsing by Author "Ebrahimi, Hamid"
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Hierarchical honeycomb auxetic metamaterials
Mousanezhad, Davood; Babaee, Sahab; Ebrahimi, Hamid; Ghosh, Ranajay; Hamouda, Abdelmagid Salem; Bertoldi, Katia; Vaziri, Ashkan... more authors ... less authors ( Nature Publishing Group , 2015 , Article)Most conventional materials expand in transverse directions when they are compressed uniaxially resulting in the familiar positive Poisson’s ratio. Here we develop a new class of two dimensional (2D) metamaterials with ... -
Honeycomb sandwich panels subjected to combined shock and projectile impact
Ebrahimi, Hamid; Ghosh, Ranajay; Mahdi, Elsadig; Nayeb-Hashemi, Hamid; Vaziri, Ashkan ( Elsevier Ltd , 2016 , Article)Structural response and failure modes of honeycomb sandwich panels subjected to a shock (impulsive pressure) followed by a high velocity projectile impact were investigated using detailed finite element simulations. ...