Effect of face sheet material on the indentation response of metallic foams

Sandwich panels comprising metallic foam cores fail by localized indentation when subjected to impact and blast loads. In this paper the indentation response of aluminum foams with face sheets, whose behavior represent elastic, elastic-ideally plastic and elastic-plastic strain hardening, were inves...

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Veröffentlicht in:Journal of materials science 2007-06, Vol.42 (11), p.3714-3723
Hauptverfasser: MOHAN, Kapil, YIP, Tick-Hon, SRIDHAR, Idapalapati, SEOW, H. P
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container_end_page 3723
container_issue 11
container_start_page 3714
container_title Journal of materials science
container_volume 42
creator MOHAN, Kapil
YIP, Tick-Hon
SRIDHAR, Idapalapati
SEOW, H. P
description Sandwich panels comprising metallic foam cores fail by localized indentation when subjected to impact and blast loads. In this paper the indentation response of aluminum foams with face sheets, whose behavior represent elastic, elastic-ideally plastic and elastic-plastic strain hardening, were investigated experimentally under quasi-static loading conditions. The tests were carried out using flat and hemispherical indenters made of stiff tool steel on the blocks of aluminum foam with and without face sheets. Thickness of the face sheets was varied from 0.5 mm to 1.0 mm to evaluate the thickness effect on the indentation behavior. Competing failure modes for the initiation of failure are discussed. Results show that the indentation behavior is strongly dependent on the type and thickness of the face sheets used.
doi_str_mv 10.1007/s10853-006-0373-4
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source SpringerNature Journals
subjects Aluminum
Blast loads
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Failure modes
Foamed metals
Foams
Indentation
Indenters
Materials science
Metal foams
Other topics in materials science
Physics
Plastic deformation
Plastic foam
Sandwich construction
Sandwich panels
Sandwich structures
Sheet material
Sheet metal
Sheets
Strain analysis
Strain hardening
Thickness
Tool steels
title Effect of face sheet material on the indentation response of metallic foams
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