Abstract
This paper shows that the stress field in the classical theory of continuum mechanics may be taken to be a covector-valued differential two-form. The balance laws and other fundamental laws of continuum mechanics may be neatly rewritten in terms of this geometric stress. A geometrically [...]
Abstract
French project named REVES started in 2015. The goal of this project is to design ballastless railway tracks without sleepers in order to reduce track thickness and increase gauge in tunnels. Older tunnels would benefit particularly from such a track since it would allow for modern [...]Abstract
Paraboloidal plastic yield criterion appropriately conveys the nonlinear elastoplastic behaviour of the polymers. The elastoplastic stress and strain relationship for the paraboloidal yield criteria is devised using the radial return mapping algorithm. For the numerical implementation [...]