Towards an accurate simulation of the crystallisation process in injection moulded plastic components by hybrid parallelisation

Abstract

The simulation of the crystallisation process during the injection moulding process of plastic components is time consuming, resulting in the ability to simulate only small parts of a component. To remove this constraint and enable the simulation of complex parts, the computing power of high-performance computers is demanded. A further design objective is high scalability in performance and memory consumption on today’s and future high-performance computing architectures to allow precise predictions of global part properties. In this work, we present a simulation tool for the crystallisation process and the parallelisation of the tool by a hybrid MPI-Pthreads approach that meets this design objective. We verify the performance and memory consumption of our parallelisation using a large simulation area of a realistic plastic component as a case study and can further predict that entire parts will also be calculable.

Mesoscale simulation of the solidification process in injection moulded parts

“…For example, in the case of the test scenario presented in Figure 12, only one third would have to be calculated (marked in light grey). For a more detailed description of the parallelisation approach see Wienke et al [26] .…”