ME 7773: Advanced Fracture Mechanics

Offered Fall, Even Years


Credit Hours: 3-0-3
Prerequisites: AE 7772 or CEE 7772 or CHE 7772 or ME 7772 or MSE 7772
Catalog Description: Nonlinear fracture mechanics including elastic-plastic, time-dependent fracture, advanced test methods, J-integral theory, and extensions. Crosslisted with AE, CEE, CHE, and MSE 7773.
Textbooks: Melvin F. Kanninen and Carl H. Popelar, Advanced Fracture Mechanics, First Edition, Oxford University Press, 1985.
Ashok Saxena, Nonlinear Fracture Mechanics for Engineers; First Edition, CRC Press, 1998.
Instructors: Ashok Saxena (MSE), David McDowell (ME), Christopher Lynch (ME), Richard Neu (ME), George Kardomateas(AE)
References:

M.Kanninen and C.Poplar, "Advanced Fracture Mechanics", Oxford University Press

T.L.Anderson, "Fracture Mechanics-Fundamentals and Applications", CRC Press Current Literature in Fracture Mechanics
Goals:

To provide an in-depth treatment of advanced topics in fracture mechanics including fracture and crack growth under elastic-plastic, time-dependent and dynamic conditions.The course emphasizes the fundamental underpinings of nonlinear fracture mechanics and its use in material evaluation and life prediction methodology for components. Micro-mechanics of fracture and crack growth processes are also covered. Upon completion of the course, the students should be able to read and follow current research papers in fracture mechanics.

Topics:
  • Limitations of LEFM
  • Fundamentals of Plasticity, Slip-line Fields and Limit-loads
  • Analysis of Cracks under Elastic-Plastic Loading
  • Methods of Estimating J-integral
  • Crack Growth Resistance Curves
  • Instability Theory
  • Dynamic Fracture
  • Micromechanics of Ductile Fracture and Constraint Effects
  • Fracture in the Transition Region
  • Fatigue Crack Growth Under Large-scale Plasticity
  • Analysis of Cracks in Creeping Bodies
  • Creep Crack Growth
  • Creep-fatigue Crack Growth
  • Fracture in Visco-elastic Materials
  • Case Studies
    • Creep Fracture in Components
    • Integrity of Nuclear Steam Pipes
    • Failure of Turbine Casings
    • Failure of Turbine Rotors
    • Integrity of Jet Engine Disks
    • Probabilistic Fracture Mechanics
Grading scheme:

Two Exams