Quasi-static mechanical properties and constitutive model of fly ash cenosphere/aluminum syntactic foam

ZHANG Boyi; GAO Jintao; WANG Li; ZHANG Jian; WANG Wei; WU Gaohui

doi:10.13801/j.cnki.fhclxb.20201116.003

Volume 38 Issue 8

Aug. 2021

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ZHANG Boyi, GAO Jintao, WANG Li, et al. Quasi-static mechanical properties and constitutive model of fly ash cenosphere/aluminum syntactic foam[J]. Acta Materiae Compositae Sinica, 2021, 38(8): 2655-2665. doi: 10.13801/j.cnki.fhclxb.20201116.003

Citation:

ZHANG Boyi, GAO Jintao, WANG Li, et al. Quasi-static mechanical properties and constitutive model of fly ash cenosphere/aluminum syntactic foam[J]. Acta Materiae Compositae Sinica, 2021, 38(8): 2655-2665. doi: 10.13801/j.cnki.fhclxb.20201116.003

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Quasi-static mechanical properties and constitutive model of fly ash cenosphere/aluminum syntactic foam

doi: 10.13801/j.cnki.fhclxb.20201116.003

ZHANG Boyi^{1, 2
,
,},
GAO Jintao^{1, 2
,},
WANG Li^{1, 2
,},
ZHANG Jian^{1, 2
,},
WANG Wei^{1, 2
,},
WU Gaohui³

1.
Key Lab of Structure Behavior and Control of China Ministry of Education, Harbin Institute of Technology, Harbin 150090, China
2.
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
3.
Center for Metal Matrix Composite Engineering Technology, Harbin Institute of Technology, Harbin 150001, China

Received Date: 2020-09-04
Accepted Date: 2020-11-05

Available Online: 2020-11-16

Publish Date: 2021-08-15

Abstract

Abstract

In order to study the quasi-static performance of fly ash cenosphere/aluminum (FAC/Al) syntactic foam, quasi-static compression performance tests were conducted on the FAC/Al specimens by using a universal testing machine. The effects of different average particle sizes on the deformation and failure modes and mechanical performance of the aluminum matrix composite foam material specimens were investigated, and the stress-strain curves of the material specimens with different particle sizes under quasi-static load were obtained. And based on the stress-strain curves, the effects of particle sizes on the energy absorption performance of the material were analyzed. And the test results show that the compressive yield strength and energy absorption capacity and the ideal absorption efficiency of the material decrease with the increase of the particle sizes. In addition, by using the least square method to fit based on the stress-strain curves, the constitutive equation of FAC/Al under quasi-static load was given and verified, and the results show that the equation has a good fitting.
- aluminum syntactic foam,
- quasi-static compression,
- stress-strain curve,
- energy absorption performance,
- constitutive equation
Long Abstrsct
Innovation Points

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References(26)

References

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