6533b857fe1ef96bd12b4fc2
RESEARCH PRODUCT
Evaluation of interfacial stress transfer efficiency by coating fragmentation test
Janis AndersonsYves LeterrierG. TornareJan-anders E. MånsonPierre J.j. Dumontsubject
Materials scienceInterfacial stressUniaxial tension02 engineering and technologyengineering.materialinterfacial shear strength01 natural sciencesBrittlenessCoatingFragmentation (mass spectrometry)0103 physical sciencesPolymer substrate[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process EngineeringGeneral Materials ScienceComposite materialInstrumentationfragmentation test010302 applied physicscoating021001 nanoscience & nanotechnologyInterfacial shearTransfer efficiencyMechanics of Materialsengineeringcohesive strength0210 nano-technologydescription
Probabilistic model of coating fragmentation under uniaxial tensile loading is developed. Analytical expressions of the crack spacing evolution are obtained for small-strain and large-strain fragmentation regimes. The model is applied for coating and interface property identification of several thin brittle coating/polymer substrate systems. An estimate of the stress transfer length, derived from the fragmentation data, is found to correlate with the interfacial shear strength thus suggesting that both parameters reflect an intrinsic property related to the mechanical efficiency of coating/substrate interface.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-09-01 | Mechanics of Materials |