Comparative Analysis of Crashworthiness of Empty and Hybrid Mild Steel-High Density Polyethylene Cylindrical Tubes Under High Axial Impact

This study investigates the crashworthiness behavior of thin-walled mild steel cylindrical tubes against hybrid tubes made of mild steel and high density polyethylene (HDPE) exposed to high-rate dynamic loadings. To carry out this investigation, three types of tubes are used. First type samples are...

Full description

Saved in:
Bibliographic Details
Published inJournal of dynamic behavior of materials Vol. 9; no. 1; pp. 106 - 123
Main Authors Raoof, F., Rezapour, J., Gohari Rad, S., Rajabiehfard, R.
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.03.2023
Springer Nature B.V
Subjects
Chemistry and Materials Science
Crashworthiness
Crushing
Energy absorption
Finite element method
Gas guns
High density polyethylenes
Impact strength
Low carbon steels
Materials Science
Metallic Materials
Parameters
Peak load
Polyethylene
Research Paper
Solid Mechanics
Tubes
Hybrid
Mild steel
High-rate axial impact
High density polyethylene
Crashworthiness
Thin-walled cylindrical tubes
Online AccessGet full text

Cover

More Information
Summary:This study investigates the crashworthiness behavior of thin-walled mild steel cylindrical tubes against hybrid tubes made of mild steel and high density polyethylene (HDPE) exposed to high-rate dynamic loadings. To carry out this investigation, three types of tubes are used. First type samples are thin-walled tubes made of mild steel; second types are mild steel/HDPE tubes having a central hole; and the third types are steel/HDPE tubes having five longitudinal holes. Using a striking mass that is shot through a gas gun to the tube, the effect of high-rate axial impacts on the energy absorption parameters including mean crushing force, peak load and other crashworthiness parameters are further studied experimentally. Finite element numerical simulation is then conducted to examine the effect of higher-rate velocities of striking object on the dynamic responses of specimens. Results show that the hybrid steel-HDPE tubes have better performance under high-rate impacts due to lower magnitudes of mean crushing force and peak load which lead to a better crashworthiness. Also, under the same dynamic impact conditions, the hybrid steel-HDPE tubes with a central hole have better energy absorption capacity.
ISSN:2199-7446
2199-7454
DOI:10.1007/s40870-022-00365-4