Article
Refine
Year of publication
- 2003 (15) (remove)
Document Type
- Article (15) (remove)
Keywords
- Analysis (1)
- Cement infiltration (1)
- Einspielen (1)
- Einspielen <Werkstoff> (1)
- Experiment (1)
- Osteoporose (1)
- Osteoporosis (1)
- Permeability (1)
- Permeabilität (1)
- Ratchetting (1)
- Vertebroplastie (1)
- Vertebroplasty (1)
- Viscous flow (1)
- Viskose Strömung (1)
- Viskosität (1)
- Zug-Druck Belastung (1)
- ratchetting (1)
- shakedown (1)
- tension–torsion loading (1)
Institute
- IfB - Institut für Bioengineering (15) (remove)
Structural design analyses are conducted with the aim of verifying the exclusion of ratchetting. To this end it is important to make a clear distinction between the shakedown range and the ratchetting range. The performed experiment comprised a hollow tension specimen which was subjected to alternating axial forces, superimposed with constant moments. First, a series of uniaxial tests has been carried out in order to calibrate a bounded kinematic hardening rule. The load parameters have been selected on the basis of previous shakedown analyses with the PERMAS code using a kinematic hardening material model. It is shown that this shakedown analysis gives reasonable agreement between the experimental and the numerical results. A linear and a nonlinear kinematic hardening model of two-surface plasticity are compared in material shakedown analysis.