Damage Characterization during Compression in a Perlite-Aluminum Syntactic Foam
Open Access
- 14 October 2019
- Vol. 12 (20), 3342
- https://doi.org/10.3390/ma12203342
Abstract
Aluminum matrix (Al99.5) syntactic foam containing expanded perlite particles was produced using the pressure infiltration technique. The dominant deformation mechanisms during compression of this foam were determined by sequential k-means analysis of the acoustic emission data. Since the different deformation mechanisms were concurrently active even at small strains, successive unloading and reloading measurement was proposed for cluster identification. The repetitive unloading and reloading allowed us to identify two mechanical parameters, namely the unloading modulus and the loss for unloading-reloading cycles. Based on the correlations among the strain localization within the specimen, the acoustic emission results, the changes in these mechanical parameters, and the transition from quasi-elastic deformation to plasticity were revealed in this material.Funding Information
- National Research, Development and Innovation Fund (TUDFO/51757/2019-ITM)
- Hungarian Academy of Sciences (Bolyai János Research Scholarship)
This publication has 22 references indexed in Scilit:
- Compressive characteristics of bimodal aluminium matrix syntactic foamsComposites Part A: Applied Science and Manufacturing, 2019
- Notch (In)Sensitivity of Aluminum Matrix Syntactic FoamsMaterials, 2019
- Functionally graded metal syntactic foam: Fabrication and mechanical propertiesMaterials & Design, 2019
- Fatigue properties of EP/A356 aluminium matrix syntactic foams with different densitiesIOP Conference Series: Materials Science and Engineering, 2018
- The effect of particle shape on mechanical properties of perlite/metal syntactic foamJournal of Alloys and Compounds, 2017
- On the compressive behaviour of high porosity expanded Perlite-Metal Syntactic Foam (P-MSF)Journal of Alloys and Compounds, 2017
- Dynamic compressive loading of expanded perlite/aluminum syntactic foamMaterials Science and Engineering: A, 2015
- On the particle size effect in expanded perlite aluminium syntactic foamMaterials & Design (1980-2015), 2015
- On the mechanical properties of heat-treated expanded perlite–aluminium syntactic foamMaterials & Design (1980-2015), 2014
- Low-density expanded perlite–aluminium syntactic foamMaterials Science and Engineering: A, 2014