Back to Search
Start Over
Analysis of compaction in brittle foam with multiscale indentation tests
- Source :
- Mechanics of Materials, Mechanics of Materials, Elsevier, 2018, 118, pp.22-30. ⟨10.1016/j.mechmat.2017.12.004⟩
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- International audience; Lightweight plasterboard is a product composed of plaster foam core whose porosity can reach 75 vol%, lined with two sheets of paper. To optimize the trade-o between thermal resistance and mechanical strength, it is important to understand and characterize the mechanical behavior of plasterboard. Core compaction of plasterboard is one of the prevalent degradation mechanism. This mechanism is studied herein using in-situ indentation experiments performed at two dierent scales. The rst test was carried out in a lab tomograph. The second test was conducted on the high resolution synchrotron ID19 beamline at ESRF. Very early damage is revealed. The basic mechanism of pore collapse and its gradual development is detected in contrast with mesoscale observations where compaction appears very abrupt.
- Subjects :
- Materials science
Thermal resistance
Compaction
Core (manufacturing)
Digital volume correlation
02 engineering and technology
021001 nanoscience & nanotechnology
Synchrotron
law.invention
[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph]
020303 mechanical engineering & transports
Brittleness
0203 mechanical engineering
Beamline
Mechanics of Materials
law
in-situ indentation test
Indentation
General Materials Science
Composite material
0210 nano-technology
Porosity
X-ray tomography
Instrumentation
lightweight plasterboard
Subjects
Details
- ISSN :
- 01676636
- Volume :
- 118
- Database :
- OpenAIRE
- Journal :
- Mechanics of Materials
- Accession number :
- edsair.doi.dedup.....ef52002e70d17d1809f6d61530be21ed
- Full Text :
- https://doi.org/10.1016/j.mechmat.2017.12.004