DMCA
Automated 3-d crack growth simulation (2000)
| Venue: | International Journal for Numerical Methods in Engineering |
| Citations: | 22 - 4 self |
BibTeX
@ARTICLE{Carter00automated3-d,
author = {B. J. Carter and P. A. Wawrzynek and A. R. Ingraffea},
title = {Automated 3-d crack growth simulation},
journal = {International Journal for Numerical Methods in Engineering},
year = {2000},
volume = {47},
pages = {229--253}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
Automated simulation of arbitrary, non-planar, 3D crack growth in real-life engineered structures requires two key components: crack representation and crack growth mechanics. A model environment for representing the evolving 3D crack geometry and for testing various crack growth mechanics is presented. Reference is made to a specific implementation of the model, called FRANC3D. Computational geometry and topology are used to represent the evolution of crack growth in a structure. Current 3D crack growth mechanics are insufficient; however, the model allows for the implementation of new mechanics. A specific numerical analysis program is not an intrinsic part of the model; i.e., finite and boundary elements are both supported. For demonstration purposes, a 3D hypersingular boundary element code is used for two example simulations. The simulations support the conclusion that automatic propagation of a 3D crack in a real-life structure is feasible. Automated simulation lessens the tedious and time-consuming operations that are usually associated with crack growth analyses. Specifically, modifications to the geometry of the structure due to crack growth, re-meshing of the modified portion of the structure after crack growth, and re-application of boundary conditions proceeds without user intervention.
Keyphrases
3-d crack growth simulation crack growth crack growth mechanic various crack growth mechanic crack geometry specific numerical analysis program real-life engineered structure key component crack growth analysis boundary element computational geometry boundary condition proceeds user intervention new mechanic model environment specific implementation intrinsic part automatic propagation time-consuming operation modified portion demonstration purpose crack representation example simulation hypersingular boundary element code real-life structure
