Stiff and strong, lightweight bi-material sandwich plate-lattices with enhanced energy absorption

Meng Ting Hsieh; Chan Soo Ha; Zhenpeng Xu; Seokpum Kim; H. Felix Wu; Vlastimil Kunc; Xiaoyu Zheng

doi:10.1557/s43578-021-00322-2

Stiff and strong, lightweight bi-material sandwich plate-lattices with enhanced energy absorption

Meng Ting Hsieh, Chan Soo Ha, Zhenpeng Xu, Seokpum Kim, H. Felix Wu, Vlastimil Kunc, Xiaoyu Zheng

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Plate-based lattices are predicted to reach theoretical Hashin–Shtrikman and Suquet upper bounds on stiffness and strength. However, simultaneously attaining high energy absorption in these plate-lattices still remains elusive, which is critical for many structural applications such as shock wave absorber and protective devices. In this work, we present bi-material isotropic cubic + octet sandwich plate-lattices composed of carbon fiber-reinforced polymer (stiff) skins and elastomeric (soft) core. This bi-material configuration enhances their energy absorption capability while retaining stretching-dominated behavior. We investigate their mechanical properties through an analytical model and finite element simulations. Our results show that they achieve enhanced energy absorption approximately 2–2.8 times higher than their homogeneous counterparts while marginally compromising their stiffness and strength. When compared to previously reported materials, these materials achieve superior strength-energy absorption characteristics, making them an excellent candidate for stiff and strong, lightweight energy absorbing applications. Graphic Abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	3628-3641
Number of pages	14
Journal	Journal of Materials Research
Volume	36
Issue number	18
DOIs	https://doi.org/10.1557/s43578-021-00322-2
State	Published - Sep 28 2021

Funding

This research was supported by the DOE Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office and used resources at the Manufacturing Demonstration Facility, a DOE-EERE User Facility at Oak Ridge National Laboratory. C. Ha, Z. Xu, M. Hsieh, and X. Zheng would also like to thank the AFOSR Air Force Office of Scientific Research (FA9550‐18‐1‐0299) and Office of Naval Research (N00014‐18‐1‐2553) for financial support.

Funders	Funder number
DOE Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office
DOE-EERE
Office of Naval Research	N00014‐18‐1‐2553
Air Force Office of Scientific Research	FA9550‐18‐1‐0299
Oak Ridge National Laboratory

Keywords

3D printing
Composite
Lightweight
Metamaterial
Modeling
Toughness

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10.1557/s43578-021-00322-2

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title = "Stiff and strong, lightweight bi-material sandwich plate-lattices with enhanced energy absorption",

abstract = "Plate-based lattices are predicted to reach theoretical Hashin–Shtrikman and Suquet upper bounds on stiffness and strength. However, simultaneously attaining high energy absorption in these plate-lattices still remains elusive, which is critical for many structural applications such as shock wave absorber and protective devices. In this work, we present bi-material isotropic cubic + octet sandwich plate-lattices composed of carbon fiber-reinforced polymer (stiff) skins and elastomeric (soft) core. This bi-material configuration enhances their energy absorption capability while retaining stretching-dominated behavior. We investigate their mechanical properties through an analytical model and finite element simulations. Our results show that they achieve enhanced energy absorption approximately 2–2.8 times higher than their homogeneous counterparts while marginally compromising their stiffness and strength. When compared to previously reported materials, these materials achieve superior strength-energy absorption characteristics, making them an excellent candidate for stiff and strong, lightweight energy absorbing applications. Graphic Abstract: [Figure not available: see fulltext.]",

keywords = "3D printing, Composite, Lightweight, Metamaterial, Modeling, Toughness",

author = "Hsieh, {Meng Ting} and Ha, {Chan Soo} and Zhenpeng Xu and Seokpum Kim and Wu, {H. Felix} and Vlastimil Kunc and Xiaoyu Zheng",

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T1 - Stiff and strong, lightweight bi-material sandwich plate-lattices with enhanced energy absorption

AU - Hsieh, Meng Ting

AU - Ha, Chan Soo

AU - Xu, Zhenpeng

AU - Kim, Seokpum

AU - Wu, H. Felix

AU - Kunc, Vlastimil

AU - Zheng, Xiaoyu

PY - 2021/9/28

Y1 - 2021/9/28

N2 - Plate-based lattices are predicted to reach theoretical Hashin–Shtrikman and Suquet upper bounds on stiffness and strength. However, simultaneously attaining high energy absorption in these plate-lattices still remains elusive, which is critical for many structural applications such as shock wave absorber and protective devices. In this work, we present bi-material isotropic cubic + octet sandwich plate-lattices composed of carbon fiber-reinforced polymer (stiff) skins and elastomeric (soft) core. This bi-material configuration enhances their energy absorption capability while retaining stretching-dominated behavior. We investigate their mechanical properties through an analytical model and finite element simulations. Our results show that they achieve enhanced energy absorption approximately 2–2.8 times higher than their homogeneous counterparts while marginally compromising their stiffness and strength. When compared to previously reported materials, these materials achieve superior strength-energy absorption characteristics, making them an excellent candidate for stiff and strong, lightweight energy absorbing applications. Graphic Abstract: [Figure not available: see fulltext.]

AB - Plate-based lattices are predicted to reach theoretical Hashin–Shtrikman and Suquet upper bounds on stiffness and strength. However, simultaneously attaining high energy absorption in these plate-lattices still remains elusive, which is critical for many structural applications such as shock wave absorber and protective devices. In this work, we present bi-material isotropic cubic + octet sandwich plate-lattices composed of carbon fiber-reinforced polymer (stiff) skins and elastomeric (soft) core. This bi-material configuration enhances their energy absorption capability while retaining stretching-dominated behavior. We investigate their mechanical properties through an analytical model and finite element simulations. Our results show that they achieve enhanced energy absorption approximately 2–2.8 times higher than their homogeneous counterparts while marginally compromising their stiffness and strength. When compared to previously reported materials, these materials achieve superior strength-energy absorption characteristics, making them an excellent candidate for stiff and strong, lightweight energy absorbing applications. Graphic Abstract: [Figure not available: see fulltext.]

KW - 3D printing

KW - Composite

KW - Lightweight

KW - Metamaterial

KW - Modeling

KW - Toughness

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ER -

Stiff and strong, lightweight bi-material sandwich plate-lattices with enhanced energy absorption

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