Peridynamic simulation plattform to determine virtual allowables of manufacturing deviations

Abstract

In this paper a Peridynamics based simulation platform is reported. The framework enables the analysis of structure and fracture mechanical problems. For such a platform, a number of things have to be taken into account. Flexible material modeling should be possible. Furthermore, geometric models must be easy to integrate. An interface for existing material models has been integrated. It is based on the Abaqus UMAT quasi standard and allows the use of existing Fortran routines. For the geometry modeling, the input of the Peridynamics software Peridigm was extended. It allows now the flexible use of arbitrary geometries and local coordinate systems. Because one application of such plattform is the determination of virtual allowables, several standard tests are implemented as well. These models are parametrized and allow flexibility within the specific standard. The whole software framework is structured with a loose coupling. Therefore, software tools for model generation, analysis and export can be easily separated and exchanged by other software. In this paper the whole framework and as an example its use for the calculation for allowables is illustrated. From a practical point of view some ideas for usability are given, e.g. different level of user entrance complexity