| Issue |
EPJ Web of Conferences
Volume 94, 2015
DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|
|
|---|---|---|
| Article Number | 04029 | |
| Number of page(s) | 5 | |
| Section | Modeling and Numerical Simulation | |
| DOI | https://doi.org/10.1051/epjconf/20159404029 | |
| Published online | 07 September 2015 | |
https://doi.org/10.1051/epjconf/20159404029
3D finite element simulations of high velocity projectile impact
Institute of Construction Materials, University of Stuttgart, 70569 Stuttgart, Germany
a Corresponding author: ozbolt@iwb.uni-stuttgart.de
Published online: 7 September 2015
An explicit three-dimensional (3D) finite element (FE) code is developed for the simulation of high velocity impact and fragmentation events. The rate sensitive microplane material model, which accounts for large deformations and rate effects, is used as a constitutive law. In the code large deformation frictional contact is treated by forward incremental Lagrange multiplier method. To handle highly distorted and damaged elements the approach based on the element deletion is employed. The code is then used in 3D FE simulations of high velocity projectile impact. The results of the numerical simulations are evaluated and compared with experimental results. It is shown that it realistically predicts failure mode and exit velocities for different geometries of plain concrete slab. Moreover, the importance of some relevant parameters, such as contact friction, rate sensitivity, bulk viscosity and deletion criteria are addressed.
© Owned by the authors, published by EDP Sciences, 2015
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