Filetype
In this study an alternative integration scheme for elasto-plasticity based on a Diagonal Implicit Runge-Kutta (DIRK) scheme originally proposed by Ellsiepen (1999) is investigated. In contrast to clasical approaches, the DIRK scheme is applied to the balance of momentum as well as the constitutive evolution equations. The presented numerical algorithm is applied to an elastoplastic bounadry value
This submission is devoted to optimization of networks that permanently experience fluctuations of the capacity available on their links. This is an important and novel topic since limited link availability is a fundamental feature in wireless networks and yet majority of work in survivable network design is restricted to the total single link failures. We assume a given finite set of network stat
Many governmental actors have an operative responsibility in times of emergency. For this task they are becoming more and more dependent on IT systems. First interviews with some emergency managers show that traditional emergency management and risk analysis not always manages to capture this critical dependency. The exact dependence on IT systems in a crisis is often hard to predict, and
