| Numéro |
J. Phys. IV France
Volume 110, September 2003
|
|
|---|---|---|
| Page(s) | 305 - 310 | |
| DOI | https://doi.org/10.1051/jp4:20020711 | |
J. Phys. IV France 110 (2003) 305
DOI: 10.1051/jp4:20020711
Numerical simulation of dynamic TPB fracture test in a modified Hopkinson bar
J. Loya, J. Fernandez-Saez and C. NavarroDepartment of Continuum Mechanics and Structural Analysis, Carlos III University of Madrid Avda. de la Universidad 30, 28911 Leganés, Madrid, Spain
Abstract
Dynamic three point bending fracture tests performed in a modified Hopkinson Bar are used to obtain material fracture properties
(such as the fracture-initiation toughness) at high strain rates. This work presents a three-dimensional numerical analysis
of the aforementioned tests, performed by the Finite Element Method, implemented in the commercial code ABAQUS. The relationship
between the Stress Intensity Factor and the Crack Mouth Opening Displacement was examined and compared with the bidinensional
one, The results indicate that the use of 2D plane strain solutions can underestimate the fracture properties.
© EDP Sciences 2003