<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Quasi-static uniaxial compressive tests of open-cell copper (Cu) foams (OCCF) were carried out on an in-situ bi-direction tension/compress testing machine (IBTC 2000). The effects of strain rate, porosity and pore size on the energy absorption of open-cell copper foams were investigated to reveal the energy absorption mechanism. The results show that three performance parameters of open-cell copper foams (OCCF), involving compressive strength, Young modulus and yield stress, increase simultaneously with an increase of strain rate and reduce with increasing porosity and pore size. Furthermore, the energy absorption capacity of OCCF increases with an increase of porosity and pore size. However, energy absorption efficiency increases with increasing porosity and decreasing pore size. The finite element simulation results show that the two-dimensional stochastic model can predict the energy absorption performance of the foam during the compressive process. The large permanent plastic deformation at the weak edge hole is the main factor that affects the energy absorption.</p></abstract>

Quasi-static uniaxial compressive tests of open-cell copper (Cu) foams (OCCF) were carried out on an in-situ bi-direction tension/compress testing machine (IBTC 2000). The effects of strain rate, porosity and pore size on the energy absorption of open-cell copper foams were investigated to reveal the energy absorption mechanism. The results show that three performance parameters of open-cell copper foams (OCCF), involving compressive strength, Young modulus and yield stress, increase simultaneously with an increase of strain rate and reduce with increasing porosity and pore size. Furthermore, the energy absorption capacity of OCCF increases with an increase of porosity and pore size. However, energy absorption efficiency increases with increasing porosity and decreasing pore size. The finite element simulation results show that the two-dimensional stochastic model can predict the energy absorption performance of the foam during the compressive process. The large permanent plastic deformation at the weak edge hole is the main factor that affects the energy absorption.

Research on energy absorption properties of open-cell copper foam for current collector of Li-ions

Changsha University of Science and Technology

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Quasi-static uniaxial compressive tests of open-cell copper (Cu) foams (OCCF) were carried out on an in-situ bi-direction tension/compress testing machine...

Research on energy absorption properties of open-cell copper foam for current collector of Li-ions

Pubblicato online: 06 mar 2019

Pagine: 8 - 15

Ricevuto: 04 gen 2017

Accettato: 13 giu 2018

DOI: https://doi.org/10.2478/msp-2019-0011

Parole chiave
open-cell copper foam, true stress-strain curve, energy absorption, finite element simulation

© 2019 Jian Chen et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Research on energy absorption properties of open-cell copper foam for current collector of Li-ions

Pubblicato online: 06 mar 2019

Pagine: 8 - 15

Ricevuto: 04 gen 2017

Accettato: 13 giu 2018

DOI: https://doi.org/10.2478/msp-2019-0011

Parole chiaveopen-cell copper foam, true stress-strain curve, energy absorption, finite element simulation

© 2019 Jian Chen et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Parole chiave
open-cell copper foam, true stress-strain curve, energy absorption, finite element simulation