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Neu entwickelte Schienenfahrzeuge sind vor ihrem Einsatz auf dem Schienennetz der DB Netz AG hinsichtlich dynamischer Brückenkompatibilität zu untersuchen. Hierbei wird die dynamische Einwirkung auf Brücken aus Zugüberfahrt (Zug‐Brücken‐Interaktion) anhand von dynamischen Berechnungsergebnissen im Grenzzustand der Tragfähigkeit (GZT) und im Grenzzustand der Gebrauchstauglichkeit (GZG) bewertet und...
In this contribution, the derivation of the energy dissipation rate in generalized visco‐elastic material models with internal stress‐type variables and linear evolution equations is outlined. The approximated dissipation rate is computed from a positive quadratic form of the nonlinear non‐equilibrium stresses and the inverse of the consistent material tangent tensor. The presented method is used...
Stable crack propagation in filled rubber is investigated by means of experimental and finite element analyses. Based on an experimental evaluation of multiple specimens under different loading states, dissipation rates are computed by applying a global energy balance. The dissipation rates calculated analogously from results of a numerical simulation of the multiple specimen method are in good accordance...
Elastomers are widely used in today's life. The material is characterized by large deformability upon failure, elastic and time dependent as well as non‐time dependent effects which can be also a function of temperature. In addition, cyclically loaded components show heat build‐up which is due to dissipation. As a result, the temperature evolution of an elastomeric component can strongly influence...
The extended tube‐model was presented by KALISKE & HEINRICH (RCT 72, 602‐632) in 1999 as a novel approach for isothermal hyperelasticity of rubberlike materials. This contribution is dedicated to its further development to finite non‐linear thermo‐viscoelasticity. A non‐linear evolution law and a thermo‐mechanical coupled free energy formulation are the kernel of the phenomenological approach...
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