tailieunhanh - Impact damage simulation in elastic and viscoelastic media

Collide of two objects or impact, is one of the main damage initiation reasons. In this paper, impact and damage behavior of elastic and visco-elastic bodies are investigated numerically using the finite element analyses. | Nội dung Text Impact damage simulation in elastic and viscoelastic media Engineering Solid Mechanics 1 2013 1-8 Contents lists available at GrowingScience Engineering Solid Mechanics homepage esm Impact damage simulation in elastic and viscoelastic media Seyed Mohammad Navid Ghoreishi and Seyed Majid Pourhosseini Faculty of Mechanical Engineering of Tech Tehran Iran ARTICLE INFO ABSTRACT Article history Collide of two objects or impact is one of the main damage initiation reasons. In this paper Received January 20 2013 impact and damage behavior of elastic and visco-elastic bodies are investigated numerically Received in Revised form using the finite element analyses. The results showed that visco-elastic materials distribute July 2 2013 stresses to the edge of model after the impact with a solid body. Furthermore the impact of Accepted 11 July 2013 Available online elastic and visco-elastic composite materials are analyzed and the variations of stress 12 July 2013 displacement damage energy and the damage patterns during a time period are compared for Keywords the two material models. The reduction in the values of stress displacement and damage energy Elastic material of visco-elastic material is also determined relative to the elastic composite material. Viscoelastic material Impact Damage Composite Finite element analysis 2013 Growing Science Ltd. All rights reserved. 1. Introduction Impact loading or high speed collide of bodies is one of the main reasons for occurring the overall failure or damage of engineering materials and component. For example impact of very small particles with great velocities to the fuselage of airplanes can affect noticeably the reliability and safe operational conditions of aero space structures. Therefore it is necessary to study the behavior of materials and structures and the damage induced under high speed loading conditions such as impact and shock loading. Damage in ductile materials occurs .