An Experimental and Finite Element Modeling Approach to Determining Deterioration of Aircraft Coating Systems
Abstract
This report summarizes the results and insights gained from SERDP project WP19-1017. The focus of this work was on understanding changes in the mechanical and chemical properties of organic polymers, i.e. a commercial aircraft coating system, applied to aluminum substrates that underwent laboratory aging and outdoor exposures meant to simulate aircraft in-service environments in order to model and predict coating degradation over time. New finite element models of the stress fields in coatings near fastener-aircraft skin interfaces were developed that provided insight into the stresses needed to drive coating cracking, as well as new numerical models for analyzing EIS data.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 09, 2023
- Accession Number
- AD1228113
Entities
People
- Attilio Arcari
- Carlos M Hangarter
- Erick B. Iezzi
- Rachel M. Anderson
- Steven A. Policastro
Organizations
- United States Naval Research Laboratory