Two Days Hands on Workshop on Elasto-Plastic Fracture Mechanics (EPFM)

3D Crack Growth : Theory & Simulation
5-6th July 2024 @Virtual Engineering, Rajajinagar, Bangalore

About Workshop

This workshop introduces theoretical fracture mechanics – covering Elastic-plastic fracture mechanics which applies to materials that exhibit time-independent, nonlinear behavior (i.e., plastic deformation). Two elastic-plastic parameters i.e., crack-tip-opening displacement (CTOD)
and the J contour integral describes crack-tip conditions in elastic-plastic materials, and each can be used as a fracture criterion. Critical values of CTOD or J give nearly size-independent measures of fracture toughness, even for relatively large amounts of crack-tip plasticity. EPFM approach with dynamics of crack initiation, propagation, and failure.

Workshop also explains factor in predicting the Stress Intensity Factor (SIF); Consideration of crack geometries, crack growth laws, time, cycle dependent combined with time, temperature dependent crack growth; Fatigue life calculation under simple, non-proportional, transient, spectrum, hold, combination and load schedules, further fatigue life, SIF history life calculation. Simulated Observed

Workshop will be a hybrid studies of fracture mechanics theory and 3D Crack Growth Simulations / computational fracture mechanics with hands on experience. Users are encouraged to bring their problem statements (with EA) performed and experts will guide to simulate the fracture studies during the workshop.

Topics Covered (Theory & Practical)

• Crack-Tip-Opening Displacement: Displacement at the original crack tip and displacement at the intersection of a 90°  vertex with the crack flanks, crack-mouth-opening displacement.
• The J Contour Integral: Nonlinear Energy Release Rate, J as a Path-Independent Line Integral, J as a Stress Intensity Parameter, The Large Strain Zone, Laboratory Measurement of J. Relationships Between J and CTOD, Crack-Growth Resistance Curves, Stable and Unstable Crack Growth, Computing J for a Growing Crack
• J -Controlled Fracture – Stationary Cracks, Controlled Crack Growth, Crack-Tip Constraint Under Large-Scale Yielding, The Elastic T Stress, J – Q Theory, The J – Q Toughness Locus, Effect of Failure Mechanism on the J – Q locus, Scaling Model for Cleavage Fracture, Failure Criterion, Three-Dimensional Effects, Application of the Model, Limitations of Two-Parameter Fracture Mechanics.
• Crack Growth Rate Models For Subcritical Crack Growth: Paired Crack growth rate and R-ratio models, Growth Rate Models : Paris, bilinear Paris, sigmoidal, hyperbolic sine, Stress ratio model : Walker, Newman NASGRO Equation. Modified Hartman-Schijve Model
• Crack Growth Load Schedules: Time, Temperature, Cycle Dependent Loading ,Quasi-Static Loading, Sub -Critical Crack Growth – Fatigue, SCC, Creep..etc – Simple cyclic, non-proportional cyclic, transient, spectrum, hold event
• Advanced Topics: Stress Corrosion Cracking, Fretting Crack, Crack Merge and Grow, Symmetry Crack, Interface Crack, LCF + HCF with Dynamic Pairing

Registration Fee

Industry : INR 5000.00 + GST (18%)
Faculty/Research Scholars : INR 4000.00 + GST (18%)
Students : INR 3000.00 + GST (18%)

Contact Details :

Ms. Hemalatha L M
hemalathalm@dhioresearch.com
Phone : +91 9900138009