The Deformation of Expanded Clay Syntactic Foams During Compression Characterized by Acoustic Emission
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00524672" target="_blank" >RIV/61389005:_____/20:00524672 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/978-3-030-42798-6_10" target="_blank" >http://dx.doi.org/10.1007/978-3-030-42798-6_10</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-030-42798-6_10" target="_blank" >10.1007/978-3-030-42798-6_10</a>
Alternative languages
Result language
angličtina
Original language name
The Deformation of Expanded Clay Syntactic Foams During Compression Characterized by Acoustic Emission
Original language description
The deformation and failure mechanisms in syntactic foams with different metal matrices were investigated in this study. The syntactic foams were produced by the infiltration method using lightweight expanded clay particles (LECA) as a space holder and commercially pure Al or eutectic Al-12%Si alloy for the matrices. The samples were compressed at room temperature. Simultaneously, the acoustic emission (AE) response and the surface deformation were monitored and collated with the deformation curves. In the case of the Al foam, ductile behavior with long plateau stress was observed. During this plateau regime, multiple active shear bands were detected. In contrast, the AlSi12 foam exhibited more brittle deformation behavior. At the end of the quasi-linear stage, the localization of the strain started within one large shear band, accompanied by a significant stress drop. The AE analysis revealed that the deformation was mostly governed by the fracture of LECA particles and the plastic deformation of the matrix material for both types of foams. After strain localization, in the case of the AlSi12 foam, the fracture of the matrix became significant, causing the deterioration of the sample. In Al foam, due to multiple active shear bands, the stress–strain curve is reproducible even for samples with four times of the size of the LECA particle.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/EF16_013%2F0001794" target="_blank" >EF16_013/0001794: European Spallation Source - participation of the Czech Republic - OP</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
The Minerals, Metals & Materials Series
ISBN
978-3-030-42797-9
ISSN
2367-1181
e-ISSN
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Number of pages
9
Pages from-to
107-114
Publisher name
Springer
Place of publication
Cham
Event location
Dearborn
Event date
Aug 20, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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