Open AccessResearch on Reverse Engineering of Mechanical Characteristic Parameters of Materials in Collision Simulation
Author(s) -
Zechen Fan
Publication year - 2020
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 - 10.1088/1742-6596/1624/2/022066
Subject(s) - displacement (psychology) , collision , test data , simulation , energy (signal processing) , compression test , finite element method , structural engineering , computer science , compression (physics) , materials science , engineering , mathematics , statistics , psychology , computer security , composite material , psychotherapist , programming language
The setting of material mechanical characteristic parameters in collision simulation has a great influence on the accuracy of simulation results. Taking the energy absorbing box as the research object, based on the inverse method of energy absorption box test data, finite element simulation, test design and genetic algorithm, the mechanical characteristic parameters of energy absorption box materials are optimized and the initial peak force and the platform force of the force displacement curve obtained from the quasi-static compression test are taken as the evaluation criteria, According to the price standard, the optimized reverse parameters are applied to the simulation model for calculation, and the simulation data are compared with the test data. The results show that the force displacement curve obtained by the simulation model is basically consistent with the overall change trend of the force displacement curve obtained by the test, and the error between the simulation data and the test data is small.