Ageing of Polymer Materials—Testing, Modelling and Simulation Considering Diffusion

  • H. Baaser
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 247)


The article shows the basics and the fundamental procedure for solving nested calculations of a multistage sequence, taking the example of a compressed O-ring seal influenced by diffusion processes and the ageing of the elastomer component. The mathematical structure of the descriptive equation of diffusion is the same as that of heat transfer. On the other hand, there is the structural-mechanical task for the calculation of mechanical equilibrium. A staggered algorithm solves the referenced problems of “diffusion” and “mechanical equilibrium” independently of each other and takes the results of the other problem as an initial condition. This enables stable solutions of multi-field problems to be achieved which are also dominated by different time scales and processes. We also discuss how to obtain suitable parameters for simulation.



The author gratefully acknowledges the fruitful discussions and support within the CAE and testing department of FNT, namely to Steffen Bohrmann, Christian Gross, Volkmar Mehling, Christian Ziegler.


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© Springer International Publishing AG 2017

Authors and Affiliations

  • H. Baaser
    • 1
    • 2
  1. 1.Freudenberg Technology Innovation FTIWeinheimGermany
  2. 2.Professor for Engineering Mechanics & FEMUniversity of Applied Sciences BingenBingen am RheinGermany

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