Crosslinked Silica Aerogel
Numerical Modeling and Mechanical Testing
(Sprache: Englisch)
Silica aerogel are highly porous nanostructured solids materials with wide range of applications. However silica aerogels are inherently fragile and brittle. Thus, their use in load-bearing applications presents a challenge. In this book, mechanical...
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Silica aerogel are highly porous nanostructured solids materials with wide range of applications. However silica aerogels are inherently fragile and brittle. Thus, their use in load-bearing applications presents a challenge. In this book, mechanical behavior of nanostructured silica aerogel is characterized under compression and three-point bending tests. In order to develop a better understanding of the synergistic stiffening and strengthening mechanism of the crosslinker a numerical model was developed using Particle Flow Code ®. The compressive strength increased 40 times the strength of plain silica aerogels. Testing was also carried out under different strain rates and temperatures. In flexural tests the stress-strain curve obtained showed a perfect elastic behavior and the \"conchoidal\" fracture morphology. The results from numerical modeling emphasis need for a better algorithm that can generate the silica aerogel structure. Also the quantitative parameters determined from modeling need to be experimentally validated.
Autoren-Porträt von Nilesh Shimpi
Shimpi, NileshNilesh Shimpi, MS (Mechanical Engineering):Studied composite materials at Oklahoma State University.
Bibliographische Angaben
- Autor: Nilesh Shimpi
- 80 Seiten, Maße: 15 x 22 cm, Kartoniert (TB), Englisch
- Verlag: VDM Verlag Dr. Müller e.K.
- ISBN-10: 3639030524
- ISBN-13: 9783639030525
- Erscheinungsdatum: 26.06.2008
Sprache:
Englisch
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