Work

In-plane Energy Absorption and Deformation Patterns of Re-entrant Auxetic Crash Box

Year: 2025

Type: article

Abstract: Fuel efficiency and occupant safety are among the most critical concerns in the automotive industry. Motivated by the significance of this field, this research aims to enhance the crashworthiness of vehicle crash absorbers. This study examines the crush response of a re-entrant auxetic square tube under quasi-static compressive loading. Re-entrant auxetic-filled tubes are compared with an empty square tube, with the auxetic structures fabricated using a 3D printing technique. Experimental and simulation results demonstrate strong agreement, confirming that the addition of re-entrant auxetic structures significantly improves the crashworthiness performance of the crash tube compared to an empty tube. By analyzing the experimental energy absorption (EA) values, the inclusion of a re-entrant auxetic square tube resulted in a 53.047% increase in energy absorption compared to the empty tube.

Source: MM Science Journal

DOI: 10.17973/mmsj.2025_03_2025002

Authors: ARIF ROCHMAN FACHRUDIN, MOCH. AGUS CHOIRON, ANINDITO PURNOWIDODO, YUDY SURYA IRAWAN

Language: English

Topic: Cellular and Composite Structures

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: diamond

OpenAlex ID: W4407974823

FWCI:

Cites:

Cited by:

Related to: 10