Open AccessComparison Of Energy Absorption And Pattern Of Deformation Material Crash Box Of Three Segments With Bilinear And Johnson Cook Approach
Author(s) -
Septiana Widi Astuti,
Willy Artha Wirawan,
Akbar Zulkarnain,
Dedik Tri Istiantara
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1273/1/012078
Subject(s) - crash , deformation (meteorology) , bilinear interpolation , crashworthiness , diamond , finite element method , collision , structural engineering , chamfer (geometry) , materials science , engineering , computer science , mathematics , geometry , composite material , statistics , computer security , programming language
The study aimed to find out the comparison of energy absorption and pattern of deformation material crash box of three segments using software simulation FEM-Based (finite element method) and bilinear and Johnson cook approach. The crash box made with a three-segment circle cross section using Al 6063-T5 material, 1.2 mm thick, 162 mm length and chamfer angle between 45º segments. Simulation on the crash box was done by frontal direction collision simulation using an impact factor of 200 kg and impact speed of 7.67 m / s. The findings showed that the value of energy absorption in the crash box material with bilinear approach was higher of 8954 J compared to the crash box with the Johnsoncook approach of 8859 J. The patterns of deformation of bilinear crash box tended to form concertina and mixed patterns (concertina + diamond).