Open AccessAn increase in crashworthiness capability using pyramid arrangement of the crush initiator
Author(s) -
Felix Dionisius,
Yusup Nur Rohmat,
Md. Yusuf,
S Suliono,
Emin Haris,
Tito Endramawan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/850/1/012049
Subject(s) - crashworthiness , square (algebra) , pyramid (geometry) , column (typography) , structural engineering , collision , impact , mathematics , engineering , geometry , computer science , finite element method , connection (principal bundle) , computer security
Collisions on vehicles could cause injury to passengers such as being thrown from a passenger room. To prevent this, a vehicle structure was not too strong which called by crashworthiness criteria through maximum impact force. This study was conducted to determine the smallest structural strength through maximum impact force in a square column with 0.8 mm in thickness. The column was given holes with 3 mm in diameter as crush initiators. The hole was arranged in pyramid pattern with different level and begun with 1 hole in the square column. The research used the quasi-static concept experimentally with 30 mm/min in movement speed of actuator. The machine used Universal Testing Machine (UTM) with 200 kN in capacities. The result showed that the pyramid arrangement with the highest level had the greatest maximum impact force 22.124 kN. Comparison of differences between the highest levels with the lowest levels reached 4.86%. While the difference between the highest level with a square column with 1 hole was 14.24%. So that the more holes arranged in a pyramid would reduce the maximum impact force during a collision.