Abstract
Numerous road accidents are reported every year amounting to huge loss in lives and properties. This calls for improving the crashworthiness of vehicles which can be achieved by employing lightweight materials with excellent energy absorbing capacity. Thereby, development and characterization of these materials has become need of the hour. In the present investigation, a finite element model of drop weight impact test is developed using LS-DYNA® to study the energy absorption characteristics of aluminum foam reinforced with carbon nanotubes. Herein, hammer is modeled using bilinear material model, and foam is modeled using crushable foam material model. Effect of drop height, density, and foam skin is investigated considering the energy absorption of foam used in this study. The behavior of foam is evaluated in terms of reaction force, displacement–time history, and energy absorption for all the velocities considered herein.
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