Defect evolution on coated samples under severe thermal transients and interfacial characterization

J. T. Harris, A. E. Segall, D. Robinson, R. Carter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effects of severe thermal- and pressure-transients on coated substrates with indentation-induced, blister defects were analyzed using experimental and finite-element methods. Both explicit and implicit FEA approaches were used to assess the transient thermal- and stress-states and the propensity for fracture related damage and evolution, while undergoing uniform convective heating and pressure transients across the surface. Spherical indentations along with in-situ acoustic emissions, c-scans, and finite element modeling were utilized to induce the defects, as well as quantify interfacial adhesion and cohesive zone properties. Preliminary results indicated complex interactions between the boundary conditions and their timing and the resulting propensity for damage birth and evolution. Given the need for robust coatings, the experimental and modeling procedures explored by this study will have important ramifications for coated tube designs and the evaluation of candidate materials.

Original languageEnglish (US)
Title of host publicationASME 2012 Pressure Vessels and Piping Conference, PVP 2012
Pages877-894
Number of pages18
DOIs
Publication statusPublished - Dec 1 2012
EventASME 2012 Pressure Vessels and Piping Conference, PVP 2012 - Toronto, ON, Canada
Duration: Jul 15 2012Jul 19 2012

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume3
ISSN (Print)0277-027X

Other

OtherASME 2012 Pressure Vessels and Piping Conference, PVP 2012
CountryCanada
CityToronto, ON
Period7/15/127/19/12

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Harris, J. T., Segall, A. E., Robinson, D., & Carter, R. (2012). Defect evolution on coated samples under severe thermal transients and interfacial characterization. In ASME 2012 Pressure Vessels and Piping Conference, PVP 2012 (pp. 877-894). (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 3). https://doi.org/10.1115/PVP2012-78358