National University of Sciences and Technology
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CHE-982 Interface Engineering
Campus SCME
Programs PG
Session Fall Semester 2016
Course Title Interface Engineering
Course Code CHE-982
Credit Hours 3.0
Course Objectives Propulsion engineers commonly regard the energetic material as an ignitable commodity, which produces thermal energy to generate useful thrust/detonation. This segment of the curriculum peers beyond this rather narrow perspective. The material is treated as a micro-mechanical composite. The aims of this course are to teach the significance of physical, chemical, and mechanical interactions at material interfaces; to characterize and predict the quality of interfacial junctions; to study the morphology, energetics, viscoelastic behavior, and fracture mechanics of adhesive joints and related assemblies. Both uniaxial and biaxial configurations and their analyses are covered
Detail Content Interface Engineering: Energetic material bonding to intermediate layers and liners is examined in terms of surface energetics and fracture mechanics for both low and high stress regimes. Morphology and Viscoelastic Behavior: Mophology is elucidated via the binder system building blocks, which undergo micro-phase segregation; compatibility of precursor materials and hard/soft segments; segmented and cross-linked polymers; viscoelasticity, networks and structure-property relations; analysis and application of viscoelastic models to practical systems; stress-strain, stress relaxation, and creep compliance; linear and non-linear response in fabricated energetic materials; understanding of dynamic mechanical response. Fracture Mechanics : Bulk fracture mechanics is differentiated from its interfacial counterpart. The various test geometries used in the evaluation of adhesion are rigorously analyzed in terms of strain energy release rate at the material-substrate junction. Advanced techniques e.g. lateral modulus gradient on the delamination of material combinations are also introduced.
Text/Ref Books
  • Fundamentals of Interface Engineering, R.J. Stokes and D.F. Evans, Wiley (1997)
  • Energetic Composites, Handbook of Engineering Polymeric Materials, M.B. Khan, Marcel Decker, N.Y. (1997)
  • Fracture Mechanics: Fundamentals and Applications, 3rd Edition, T.L. Anderson, CRC Press (2004)
  • Preparation and Testing of Adhesive Joints: B. Broughton and M. Gower, National Physical Lab (NPL) U.K. (2004).
Time Schedule Fall Semester, 2011
Faculty/Resource Person Dr M. B. Khan