 |
|
|
|
| HAL: jpa-00229507, version 1 |
| DOI: 10.1051/jphyscol:1989431 |
| Detailed view |  Export this paper |
|
|
| Journal de Physique Colloques 50, C4 (1989) C4-191-C4-196 |
|
|
|
|
| FRACTURE TOUGHNESS OF SILICA AEROGELS |
|
|
| J. PhalippouT. Woignier |
|
|
| (1989) |
|
|
|
| Silica aerogels of desired shape have been elaborated to perform critical stress intensity factors evaluations as a function of the density. The fracture toughness of aerogels is measured usin SENB technique in three-point bending. KIC varies in the range 0.8 to 4.8 KPa.m1/2. For aerogels whose bulk density ranges between 0.1 and 0.35 g/cm3 the analysis of the obtained results suggests that KIC varies as ρ1.6±0.2. The fracture energy variation and the critical size flaw derived from toughness, strength and Young's modulus are also presented and discussed. |
|
|
|
|
| Subject | : | Physics/Physics archives |
|
|
| Attached file list to this document: | |||||
|
|||||
|
|
|
| jpa-00229507, version 1 | |
| http://hal.archives-ouvertes.fr/jpa-00229507 | |
| oai:hal.archives-ouvertes.fr:jpa-00229507 | |
| From: Archives Journal de Physique | |
| Submitted on: Sunday, 1 January 1989 08:00:00 | |
| Updated on: Sunday, 1 January 1989 08:00:00 | |
