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

• Autorzy: Chen Jian , Li Xiongfei , Li Wei , Li Cong , Xie Baoshan , Dai Shuowei , He Jian-Jun , Ren Yanjie

Identyfikatory

DOI

10.2478/msp-2019-0011

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

open-cell copper foam; true stress-strain curve; energy absorption; finite element simulation

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2019
• Tom: Vol. 37, No. 1
• Strony: 8--15
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Chen Jian

• School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, China

autor

Li Xiongfei

• School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, China

autor

Li Wei

• School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, China

autor

Li Cong

• School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, China

autor

Xie Baoshan

• School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, China

autor

Dai Shuowei

• School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, China

autor

He Jian-Jun

• School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, China

autor

Ren Yanjie

• School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha, Hunan, 410004, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).