Work

Experimental and Analytical Study on Multiscale Cushioning and Energy Absorption of Aluminum Foam at Different Strain Rates

Year: 2025

Type: article

Abstract: In this research, the compressive behavior of closed-cell aluminum foam was examined across a broad strain rate spectrum, spanning from 0.005 s⁻1 to 2000 s⁻1. Utilizing an enhanced Hopkinson bar apparatus, the deformation and fracture mechanisms of the foam were captured through high-speed videography. Additionally, a microscale finite element model was developed to elucidate the dynamic deformation characteristics of aluminum foam at multiple scales. The findings indicate that the material’s response is highly strain rate-dependent, with both stress levels and energy absorption efficiency escalating as the strain rate rises. Moreover, the damage progression in aluminum foam manifests as a progressive collapse pattern.

Source: Applied Sciences

DOI: 10.3390/app15052638

Authors: Qianzhi Qiu, Hongtao Wang, Wentian Ma

Institutions: Shandong Jianzhu University, China Academy of Building Research

Language: English

Topic: Cellular and Composite Structures

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

OpenAlex ID: W4408052344

FWCI: 1.474

Cites: 30

Cited by: 5

Related to: 10