Author | dc.contributor.author | Pasten, C. | |
Author | dc.contributor.author | García, M. | |
Author | dc.contributor.author | Cortés, D. D. | |
Admission date | dc.date.accessioned | 2016-01-22T01:44:16Z | |
Available date | dc.date.available | 2016-01-22T01:44:16Z | |
Publication date | dc.date.issued | 2015 | |
Cita de ítem | dc.identifier.citation | Geotechnique Letters Volumen: 5 Número: 3 Sep 2015 | en_US |
Identifier | dc.identifier.other | DOI: 10.1680/jgele.15.00072 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/136679 | |
General note | dc.description | Artículo de publicación ISI | en_US |
General note | dc.description | Sin acceso a texto completo | |
Abstract | dc.description.abstract | Field observations and laboratory experiments show that temperature cycles can lead to wedging
and accumulation of permanent displacements in several geosystems. The magnitude of these
displacements depends on the geometric configuration of the components, the thermo-mechanical
properties of the materials and interfaces, and the signature of the temperature signal. A physical
model of a geometry susceptible to thermally induced wedging is analysed both experimentally and
numerically in this article. The model consists of a driving wedge and a resisting block that rests on
a rigid L-shaped base. The geometrical conditions required for the mechanism to manifest itself are
found using equilibrium analysis of sliding and toppling. These conditions are reproduced in a
physical model that is instrumented to measure changes in displacement and temperature in
response to a cyclic temperature input. A numerical model was also developed to simulate the
thermo-mechanical behaviour of the geometry. The numerical results and experimental
measurements show that the accumulation of plastic displacement induced by temperature cycling
is proportional to the period and amplitude of the input temperature signal. | en_US |
Patrocinador | dc.description.sponsorship | Conicyt Fondecyt Initiation into Research grant 11130363 | en_US |
Lenguage | dc.language.iso | en | en_US |
Publisher | dc.publisher | ICE Publishing | en_US |
Keywords | dc.subject | Finite-element modelling | en_US |
Keywords | dc.subject | Model tests | en_US |
Keywords | dc.subject | Repeated loading | en_US |
Keywords | dc.subject | Temperature effects | en_US |
Título | dc.title | Physical and numerical modelling of the thermally induced wedging mechanism | en_US |
Document type | dc.type | Artículo de revista | |