Stress Analysis in Polymeric Coating Layer Deposited on Rigid Substrate
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This paper presents an analysis of thermal stress induced along the interface between a polymeric coating layer and a steel substrate as a result of uniform temperature change. The epoxy layer is assumed to be a linear viscoelastic material and to be theromorheologically simple. The viscoelastic boundary element method is employed to investigate the behavior of interface stresses. The numerical results exhibit relaxation of interface stresses and large stress gradients, which are observed in the vicinity of the free surface. Since the exceedingly large stresses cannot be borne by the polymeric coating layer, local cracking or delamination can occur at the interface corner.
Abstract
This paper presents an analysis of thermal stress induced along the interface between a polymeric coating layer and a steel substrate as a result of uniform temperature change. The epoxy layer is assumed to be a linear viscoelastic material and to be theromorheologically simple. The viscoelastic boundary element method is employed to investigate the behavior of interface stresses. The numerical results exhibit relaxation of interface stresses and large stress gradients, which are observed in the vicinity of the free surface. Since the exceedingly large stresses cannot be borne by the polymeric coating layer, local cracking or delamination can occur at the interface corner.
참고문헌 (11)
- D. G. Weldon, "Failure Analysis of Paints and Coatings" (2001), John Wiley & Sons
- P. A. Schweitzer, "Paints and Coatings" (2006), CRC Press
- C. H. Hare, "Paint Film Degradation" (2001), SSPC
- E. D. Reedy Jr, , Eng. Fract. Mech, 36, pp.575~ (1990)
- D. B. Bogy, , J. Appl. Mech, 35, pp.460~ (1968)
- Y. Weitsman, , Int. J. Solids Struct, 15, pp.701~ (1979)
- F. Delale, , J. Appl. Mech, 48, pp.331~ (1981)
- S. S. Lee, , Int. J. Solids Struct, 35, pp.1385~ (1998)
- 이상순, "Viscoelastic Analysis of Osmotic Blistering Behavior of Coating Film", CORROSION SCIENCE AND TECHNOLOGY, 8(1), pp.11~14 (2009), 한국부식방식학회
- M. L. Williams, , J. Appl. Mech, 74, pp.526~ (1952)
- S. S. Lee, , Int. J. Numer. Meth. Eng, 38, pp.607~ (1995)