Browsing by Author "Vaziri, Ashkan"
Now showing items 1-3 of 3
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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. ... -
Transverse vibration and stability of a functionally graded rotating annular disk with a circumferential crack
Bahaloo, Hassan; Papadopolus, Jim; Ghosh, Ranajay; Mahdi, Elsadig; Vaziri, Ashkan; Nayeb-Hashemi, Hamid... more authors ... less authors ( Elsevier Ltd , 2016 , Article)Out of plane vibration of rotating disks limits their performances especially at certain critical speed. The critical speed of these disks may be affected by the presence of defects such as a circumferential crack. In this ...