Defect evolution in coated tubes under severe thermal transients applied to the ID

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

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

Abstract

The effects of severe thermal-transients on coated substrates with indentation-induced, blister type defects were analyzed using finite-element methods. Both explicit and implicit approaches were used depending on the timeframe under scrutiny. For the modeling, an axisymmetric mesh and cohesive zone elements was used to assess the transient thermal - And stress-states and the propensity for fracture related damage and evolution. For all calculations (and when available), temperature dependent thermophysical and elastic properties were used during the analysis. The model also utilized uniform heating across the surface imposed via convective coefficients and a piece-wise linear pressure function. Preliminary results indicated complex interactions between the boundary conditions and their timing and the resulting propensity for damage evolution. Given the need for robust coatings, the modeling procedures developed during this study will have important ramifications for coated tube designs and the evaluation of candidate materials.

Original languageEnglish (US)
Title of host publicationASME 2011 Pressure Vessels and Piping Conference, PVP 2011
Pages1101-1114
Number of pages14
DOIs
StatePublished - 2011
EventASME 2011 Pressure Vessels and Piping Conference, PVP 2011 - Baltimore, MD, United States
Duration: Jul 17 2011Jul 21 2011

Publication series

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

Other

OtherASME 2011 Pressure Vessels and Piping Conference, PVP 2011
CountryUnited States
CityBaltimore, MD
Period7/17/117/21/11

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Defect evolution in coated tubes under severe thermal transients applied to the ID'. Together they form a unique fingerprint.

Cite this