Browsing Mechanical & Industrial Engineering by Author "Vaziri, Ashkan"
Now showing items 1-4 of 4
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Elastic properties of chiral, anti-chiral, and hierarchical honeycombs: A simple energy-based approach
Mousanezhad, Davood; Haghpanah, Babak; Ghosh, Ranajay; Hamouda, Abdel Magid; Nayeb-Hashemi, Hamid; Vaziri, Ashkan... more authors ... less authors ( Elsevier Ltd , 2016 , Article)The effects of two geometric refinement strategies widespread in natural structures, chirality and self-similar hierarchy, on the in-plane elastic response of two-dimensional honeycombs were studied systematically. Simple ... -
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 ...