World Journal of Engineering World Journal of Engineering 12(1) (2015) 23-28 World Journal of Engineering Modeling and analysis of impact energy absorber by using ls dyna Adik Yadao 1,* and R. S. Hingole 2 1 Assistant Professor, Department of Mechanical Engineering, G.H. Raisoni College of Engineering and Management, Wagholi, Pune - 412207, MS. India. 2 Professor and CEO, Department of Mechanical Engineering, JSPM’S Bhivarabai Sawant Institute of Technology and Reaerch, Wagholi, Pune - 412207, MS. India. * E-mail: adik.mech@gmail.com (Received 12 November 2014; Accepted 20 January 2015) Abstract Today’s car is one of the most important things in everyone’s life .Every person wants to have his or her own car but the question that arises in each buyer’s mind is whether the vehicle is safe enough to spend so much of money so it is the responsibility of an mechanical engineer to make the vehical comfortable and at the Same time safer. Now a days automakers are coming with various energy absorbing devices such as crush box, door beams etc. this energy absorbing device s prove to be very useful in reducing the amount force that is being transmitted to the occupant. In this we are using impact energy absorber in efficient manner as compare to earlier. The various steps involved in this project starting from developing the cad model of this inner impact energy absorber using the CAD software CATIA V5 R19. Then pre-processing is carried out in HYPERMESH 11.0 which includes assigning material, properties, boundary conditions such as contacts, constraints etc. LS-DYNA971 is used as a solver and LS-POST is used for the post processing and results obtained are compared to the standards. By carrying out this idea it has been observed that there is a considerable amount of energy that is being absorbed by this energy- absorbing device. Along with this energy absorption, the intrusion in passenger compartment is also reduced by considerable amount. So for safer and comfortable car with inner impact energy absorber is one of the best options available. This will get implement by this research work. Key words: Energy absorber, High impact, LS Dyna World Journal of Engineering ISSN:1708-5284 1. Introduction Impact energy absorbing process is one of the most important challenges of present applied mechanical science. Depending on the field of use, Energy absorbers can be made for repeated or one time action use. The first group of absorbers is well known in the present state of the art, either in the controlled version where the adaptively is quite easy to obtain. For example magneto-rheological dampers or pneumatic pistons can be used for absorption of