✦ LIBER ✦
Plastic multipliers as driving variables of numerical simulation in elastoplasticity
✍ Scribed by Yu. Vetyukov; J. Gerstmayr; H. Irschik
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 266 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0093-6413
No coin nor oath required. For personal study only.
✦ Synopsis
Statics of elasto-plastic media is stated in terms of eigenstrains acting upon a background elastic problem with fixed (initial) stiffness. In order to minimize the number of unknowns and to provide computationally cheap algorithms plastic multipliers are used as main driving variables. Fixed-point type iterations are suggested for computing plastic multipliers within the load increment. Numerical experiments results are shown to be in good correlation with other software results. A range of problems is outlined where the usage of the proposed algorithms can be advantageous.