ESDU TM 191
ESDU TECHNICAL MEMORANDUM
Rebound resilience of interface layer - effect of temperature and bearing pressure
Abstract:
Creation of an algebraic model for decelerating forces on tyres is based on the hypothesis that, when a rubber compound is forced into intimate contact with a surface constructed from such a rigid substance as glass or concrete, a thin layer of visco-elastic material is created at the interface. Thickness of the layer is conceived to be at molecular scale. Its mechanical properties are different from, but are related to, those of the parent rubber.
The mechanical properties of the interface material, relevant to coefficient of decelerating force, are assumed to be limited to the following.
- Elastic modulus
- Rigidity modulus
- Poisson's ratio
- Phase angle (between stress and strain)
The influence of phase angle is expressed by way of an effective rebound resilience.
Effective values for rebound resilience for the material in the interface between rubber compounds and plane, dissimilar surfaces are deduced from a variety of sources. Empirical functions are derived which provide an adequate description of the deduced values for rebound resilience, and also reflect the trends that have been observed in all kinds of rubber compounds.
It is recommended that the empirical functions form the basis of the contribution of resilience to algebraic modelling of decelerating forces for tyres moving over paved runways.
Indexed under:
- None
Details:
Data Item ESDU TM 191 | |
---|---|
Format: |
|
Status: |
|
Previous Releases: |
|
ISBN: |
|
The Data Item document you have requested is available only to subscribers or purchasers.
- Subscribers login here.
- If you are not an ESDU subscriber you can
- find out how to subscribe, or
- purchase this Data Item from the Standards Store.