back to top
My wish lists
Save your wish list
If you want to add more content to your wish list, simply log in. If you do not have a user account, please register for the Hanser Customer Center.

» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.
Your wish lists
If you want to use your wish list during your next visit, simply log in. If you do not have a user account, please register for the Hanser Customer Center.
» Do you already have a user account? Please log in here.
» Don't have a user account yet? Please register here.

« Back

Your advantages at a glance

  • One login for all Hanser portals
  • Individual home page for faster access to preferred content
  • Exclusive access to selected content
  • Personal wish lists on all portals
  • Central management of your personal information and newsletter subscriptions

Register now
Deutsch
Bookmark Bookmarked

Simulation-Based Developement of Components Made of Thermal Conductive Polymers

Adding heat-conductive fillers modifies plastics‘ properties of heat conductivity. As a result, in addition to their mechanical and electrical insulation functions, these materials can assume a function in thermal management, by e.g. replacing metal cooling structures in assembly groups of LED lighting. This thesis presents the experimental investigations undertaken on the interrelations between structure and properties. They show that filler orientation, filler degradation and filler deformation are the main factors to determine the heat conductivity of a moulded part, thus making it clear that heat conductivity is a process-related anisotropic material property. In order to conduct targeted simulation-aided component design with heat-conductive plastics, it is essential for the designer to know these influencing factors and use the right material properties in the calculations. A demonstrator designed for LED cooling serves as an example to show that the known guidelines of thermodynamic component design need to be altered and adjusted, if heat-conductive plastics are used.

To predict the heat conductivities of filled plastics, a variety of analytical as well as numerical calculation methods is available. The investigations showed that the question as to which of the methods is best suited is determined by the respective phase of product development. While analytical models enable easy, though less precise, material calculation in the early phases, homogenization methods are superior when complex influences from production and material composition are to be represented. This allows for integrative procedure in product development and can replace expensive experimental cycles of material development. Based on the investigations, a systematic procedure of product development could finally be conducted.

Lesen Sie die deutsche Zusammenfassung auf Kunststoffe.de
Author
 Christoph Heinle

Christoph Heinle
Lehrstuhl für Kunststofftechnik (LKT)
Universität Erlangen-Nürnberg

Information

Free keywords: hermal conductive polymer, LED cooling, material simulation, meanfield homogenization, injection moulding, product developement
Institute / chair: Technische Fakultät der Universität Erlangen-Nürnberg
Language: German
Technical consultant for expert services: Prof. Dr.-Ing. Dietmar Drummer (Betreuer), Prof. Dr.-Ing. Dr. h.c. Gottfried W. Ehrenstein, Prof. Dr.-Ing. Volker Altstädt
Publication year: 2012
Provider: Wissenschaftlicher Arbeitskreis Kunststofftechnik (WAK) / Kunststoffe.de

Further Information

About the PhD Dissertation Data Base

WAK-Logo

In cooperation with the Wissenschaftlicher Arbeitskreis Kunststofftechnik (WAK), we provide free access to current dissertations in the field of plastics technology.

Further information and contact

WAK-Homepage