This paper presents a new algorithm named "Continuous Cellular Growth" (CCG) method for the calculation of the crystal growth process of spherulites in solidifying semi-crystalline polymer melts. The concept is developed in one dimension, then transferred to three dimensions and finally implemented as an executable algorithm in the in-house code Sph„roSim. The CCG method is compared to an inaccurate but fast Monte-Carlo based and an accurate but slow integration based growth algorithm which uses a Raytracing method. It turns out that the results of the CCG method are very close to those of the integration method with differences of only a few percent. However, the computation time was reduced by two orders of magnitude compared to the Raytracing method, and thus is only slightly above the computation time of the Monte Carlo algorithm.
A new method for the calculation of the spherulite growth in solidifying semi-crystalline polymer melts / Spekowius, M; Schirrmann, C; Spina, Roberto; Hopmann, C.. - (2015), pp. 2416-2420. (Intervento presentato al convegno 73rd Annual Technical Conference and Exhibition of the Society of Plastics Engineers, SPE ANTEC Orlando 2015 tenutosi a Orlando, FL, USA nel March 23-25, 2015).
A new method for the calculation of the spherulite growth in solidifying semi-crystalline polymer melts
SPINA, Roberto;
2015-01-01
Abstract
This paper presents a new algorithm named "Continuous Cellular Growth" (CCG) method for the calculation of the crystal growth process of spherulites in solidifying semi-crystalline polymer melts. The concept is developed in one dimension, then transferred to three dimensions and finally implemented as an executable algorithm in the in-house code Sph„roSim. The CCG method is compared to an inaccurate but fast Monte-Carlo based and an accurate but slow integration based growth algorithm which uses a Raytracing method. It turns out that the results of the CCG method are very close to those of the integration method with differences of only a few percent. However, the computation time was reduced by two orders of magnitude compared to the Raytracing method, and thus is only slightly above the computation time of the Monte Carlo algorithm.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
