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 language | English (US) |
|---|---|
| Title of host publication | ASME 2011 Pressure Vessels and Piping Conference, PVP 2011 |
| Pages | 1101-1114 |
| Number of pages | 14 |
| Volume | 3 |
| DOIs | |
| State | Published - 2011 |
| Event | ASME 2011 Pressure Vessels and Piping Conference, PVP 2011 - Baltimore, MD, United States Duration: Jul 17 2011 → Jul 21 2011 |
Other
| Other | ASME 2011 Pressure Vessels and Piping Conference, PVP 2011 |
|---|---|
| Country | United States |
| City | Baltimore, MD |
| Period | 7/17/11 → 7/21/11 |
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All Science Journal Classification (ASJC) codes
- Mechanical Engineering
Cite this
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Defect evolution in coated tubes under severe thermal transients applied to the ID. / Harris, J. T.; Segall, Albert Eliot; Carter, R.
ASME 2011 Pressure Vessels and Piping Conference, PVP 2011. Vol. 3 2011. p. 1101-1114.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Defect evolution in coated tubes under severe thermal transients applied to the ID
AU - Harris, J. T.
AU - Segall, Albert Eliot
AU - Carter, R.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
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U2 - 10.1115/PVP2011-57604
DO - 10.1115/PVP2011-57604
M3 - Conference contribution
SN - 9780791844533
VL - 3
SP - 1101
EP - 1114
BT - ASME 2011 Pressure Vessels and Piping Conference, PVP 2011
ER -