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Understanding Mechanical Behavior of Metallic Foam with Hollow Struts Using the Hollow Pentagonal Dodecahedron Model

18 Pages Posted: 26 Jan 2020 Publication Status: Accepted

See all articles by Rui Dai

Rui Dai

Arizona State University (ASU) - Department of Mechanical Engineering

Meng Wang

Arizona State University (ASU) - Department of Chemical Engineering

Dini Wang

Arizona State University (ASU) - Department of Materials Science and Engineering

Zengrong Hu

Soochow University - School of Rail Transportation

Matthew D. Green

Arizona State University (ASU) - Department of Chemical Engineering

Qiong Nian

Arizona State University (ASU) - Department of Mechanical Engineering

Abstract

Nickel (Ni) foam with hollow struts, as one type of ultralight stochastic cellular material, can be simply manufactured by electroplating on a thermally or chemically removable template. A fundamental understanding is required to create a consistent lattice model with capability to capture its mechanical behavior. Herein, an unprecedented hollow pentagonal dodecahedron (HPD) model is proposed with a novel 3D packing architecture. HPD model reveals the scaling of Young's modulus (E) to relative density (ρ') in the factor of 2, which agrees well with uniaxial compression tests. This simplified model paves a way to investigate the cellular material with hollow struts.

Keywords: Cellular material, Metallic foam, Hollow strut, Pentagonal dodecahedron, Elastic modulus.

Suggested Citation

Dai, Rui and Wang, Meng and Wang, Dini and Hu, Zengrong and Green, Matthew D. and Nian, Qiong, Understanding Mechanical Behavior of Metallic Foam with Hollow Struts Using the Hollow Pentagonal Dodecahedron Model. Available at SSRN: https://ssrn.com/abstract=3522216 or http://dx.doi.org/10.2139/ssrn.3522216

Rui Dai (Contact Author)

Arizona State University (ASU) - Department of Mechanical Engineering

Tempe, AZ
United States

Meng Wang

Arizona State University (ASU) - Department of Chemical Engineering

Tempe, AZ 85281
United States

Dini Wang

Arizona State University (ASU) - Department of Materials Science and Engineering

Tempe, AZ
United States

Zengrong Hu

Soochow University - School of Rail Transportation

Suzhou, 215131
China

Matthew D. Green

Arizona State University (ASU) - Department of Chemical Engineering

Tempe, AZ 85281
United States

Qiong Nian

Arizona State University (ASU) - Department of Mechanical Engineering ( email )

Tempe, AZ
United States

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