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2D/3D Painted TPO Fascia Testing to Mimic Real World Friction Induced Damage by Cohesive and Delamination Failures
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Abstract
Durability tests have been initiated on olefinic and production painted fascias. Both 2D and 3D tests have provided insights into Friction Induced Damage (FID) failure mechanics. Full scale, 3D tests of automotive fascia mimic the parking lot rubbing contact between cars with friction forces exceeding 5000. N. 2D tests provide the cost effective approach to materials research by isolating the failure mechanics in the upper 250 μm of the decorated TPO where the cosmetic damage is initiated. Initial findings show some olefinic paint, TPO combinations to be more damage resistant for realistic frictional contact scenarios.
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Mihora, D., Ramamurthy, A., and Venditto, V., "2D/3D Painted TPO Fascia Testing to Mimic Real World Friction Induced Damage by Cohesive and Delamination Failures," SAE Technical Paper 980712, 1998, https://doi.org/10.4271/980712.Data Sets - Support Documents
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References
- Mihora D. Modeling Issues for Painted Automotive Fascia Undergoing 3D Friction Induced Damage World Tribology Congress Mech. Eng. Publications, Ltd. London Sept. 1997
- Ramamurthy A. et. al. Novel Method for Objective Assessment of Painted Engineering Plastics WEAR 203-204 1997 350 36
- Ramamurthy A. Mihora D. Durability of Painted Automotive Exteriors: A Study in Paint Tribology, 30th ISATA Florence June 1997
- Mihora D. Ramamurthy A. C. Preliminary Numerical Analysis of Stresses within Automotive Painted Plastics WEAR 203-204 1997 362 374
- Maker B. NIKE3D: a Nonlinear, Implicit, 3D, Finite Element Code for Solid and Structural Mechanics UCRL-MA-105268 Lawrence Livermore Nat'l Labs
- Ramamurthy, A. C. Szczepanaik, E. Friction Induced Damage: An Objective Assessment of Three Coating Systems SAE International Congress Cobo Hall, Detroit Paper No. 980711 Feb. 1998