Course on 3D Fracture Mechanics Simulation using FRANC3D

Categories: Design, Mechanical
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About Course

This course mainly deals with the 3D Crack growth Simulation using FRANC3D.

The FRacture ANalysis Code 3D (FRANC3D) program is designed to simulate 3D crack growth in engineering structures where the component geometry, local loading conditions, and the evolutionary crack geometry can be arbitrarily complex. It is designed to be used as a companion to general purpose Finite Element (FE) solvers.

FRANC3D is developed and Fracture Analysis Consultants, Inc. (FAC) was founded in 1988 as a spin-off from high-technology R&D at Cornell University. With an mission to provide state-of-the-art services in computational fracture mechanics to industry.

Understanding the FRANC3D process:
  • an analyst creates an uncracked FE mesh using the standard tools available in the commercial FE package.
  • The analyst then defines a sub-model of the crack growth region.
  • FRANC3D reads the sub-model mesh file and remeshes the sub-model to incorporate the geometry of a crack. The crack geometry and location can be prescribed interactively using the Graphical User Interface (GUI).
  • The “cracked” sub-model is reintegrated into the remainder of the model and an analysis is performed.
  • The resulting displacements are read back into FRANC3D, which computes Stress Intensity Factors (SIF’s) for all node points along the crack front.
  • The SIF’s are used to predict the direction and relative amount of growth of the crack front points.
    The crack is extended, the sub-model remeshed, and another stress analysis is performed. This process is repeated for the number of crack steps specified by the analyst

This course will cover theory and hands on aspects of 3D Crack Growth Simulation.

What Will You Learn?

  • Fundametals of Computational Fracture Mechanics
  • Fundamentals of LEFM, EPFM
  • 3D Crack Growth Simulations
  • Introductions to FRANC3D
  • Real-Time Problem Solving with FRANC3D

Course Content

Introduction to Fracture Mechanics Analysis

Introduction to Fatigue and Damage Tolerance Philosophies

Introduction to LEFM and EPFM

Introduction to FRANC3D and Its Capabilities

Import FE model into FRANC3D

Modelling a Crack

Static Crack Analysis

Calculate Stress Intensity Factors

FE model with multiple Load steps

Manual Crack Growth

SIF History and Fatigue Life Calculation

Resume Growth with Larger Submodel

Thermo-Mechanical Crack Growth

Solid Shell Model and Crack Modelling

Multiple Crack Insertion and Growth

Crack Growth and Fatigue Options

Crack Growth and Fatigue Options

Application of Residual Stress/Crack Face Tractions

Fatigue with Time Dependent Growth

Fretting Crack Nucleation

Session Log and Playback

Visualize and Create Crack Growth Animation

One CT specimen to Validate Franc3D simulation Results with Experimental Results

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