Introduction of an internal time in nonlocal integral theories

Abstract : Nonlocal damage models are now commonly used. Their ability to make finite element computations with softening laws robust and mesh independent is well established. There are nevertheless still a few open questions as the identification of the so-called internal length lc, as its loading or its boundray independency. One focus in the present note on the boundary conditions problem and on the feature that points separated by a crack or a hole should not interact as they do in Pijaudier-Cabot and Bazant initial nonlocal theory. Instead of defining an internal length one proposes to make the nonlocal weight function as a function of the information time propagation of an elastic wave normalized by an internal time τc.
Complete list of metadatas

Cited literature [7 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01017193
Contributor : Fabrice Gatuingt <>
Submitted on : Wednesday, July 2, 2014 - 8:37:30 AM
Last modification on : Saturday, May 25, 2019 - 1:44:35 AM
Long-term archiving on : Thursday, October 2, 2014 - 11:11:36 AM

File

RILMT-desmorat_gatuingt.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01017193, version 1

Citation

Rodrigue Desmorat, Fabrice Gatuingt. Introduction of an internal time in nonlocal integral theories. 2007. ⟨hal-01017193⟩

Share

Metrics

Record views

232

Files downloads

154