Paper Number 1.1
Fracture Mechanisms Underlying Road Wear
Joe Padovan
3670 Lamesa Drive
Akron, Ohio 44333
Email: joe-pat_padovan@worldnet.att.net
Voice: 330-668-1923
The main focus of the presentation will be to
outline how factory induced material morphology, and compounded dynamic
mechanical and fracture properties control the wear of elastomers. FEA modeling
will be employed to demonstrate how such properties combine to effect wear
particle evolution during successive road surface asperity passing events.
Specific attention will be given to determine how these factors combine to
control debris formation. This will be established in a multi step process
which:
1) Sorts out scale,
and specifics of morphological and associated interfacial topologies including
stochastic characteristics;
2) Establishes
agglomerated and constituent material dynamic properties at appropriate
geometric scale level;
3) Sets up FEA model
including specifics of material morphology and dynamic properties as well as
randomness of road surface asperity geometry;
4) Simulates debris
evolution.
Attention will also be given to establish how
compounding and factory processing specifics control wear performance.