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ESRDESRD
  • About
    • Who We Are
    • S.A.F.E.R. Simulation
    • Partners & Providers
    • News & Events
    • Careers
    • Contact Us
  • Applications
    • What We Solve
    • Aerospace & Defense
    • Detailed Stress
    • Composites
    • Fracture Mechanics
    • Residual Stress
    • Sim Apps
  • Products
    • What We Develop
    • StressCheck Professional
      • StressCheck Core
      • Solvers
      • Advanced Modules
      • Utilities
    • StressCheck Apps
      • CAE Handbook
      • StressCheck Tool Box
  • Support
    • How We Can Help
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    • StressCheck Tutorials
    • Sim App & API Development

Multi-Fastener Analysis Tool

Home ProductsStressCheck-Powered AppsStressCheck Tool BoxMulti-Fastener Analysis Tool

Multi-Fastener Analysis Tool

The Multi-Fastener Analysis Tool (MFAT) provides effortless modeling of single or double shear joints, including lap joints, splice joints, and doublers (with or without a repair cutout). MFAT supports metallic and composite plates, and allows for any number of fasteners with neat fit, interference fit or clearance fit.

Single and double shear joints with unlimited fastened connections.

MFAT accounts for both the radial stiffness of the fastener and the fastener fit, including the nonlinear interaction between the fastener shank and the fastener hole. MFAT also includes the effect of the shear/bending stiffness of each fastener, the value of which can be accurately computed with SFAT. The FE mesh is built ‘on the fly’ based on input provided by the user in a very intuitive interface. Fastener load transfer results obtained with MFAT are presented in tabular form and depicted graphically, and they compare well with experimental data published in the literature.

Key Features and Advantages

  • Solutions are obtained with StressCheck®, with quality verified by p-extension.
  • Modeling approach validated with experimental results.
  • Built-in results viewer provides dynamic viewing of FE mesh and stress fringe contours.
  • Supports US and SI units.
  • Simulate influence of fastener fit in load transfer.
  • Solution time is reduced from hours to minutes when compared with standard FEA.
  • Simplified user interface provides input of fastener data in pre-defined templates with step by step validation feedback.

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Testimonials

  • “At DST Group, we have effectively used StressCheck® over the last 10 years to determine accurate stress intensity factors. The results have been used to improve our residual strength and structural life estimates for aircraft in service with the Royal Australian Airforce, including C-130, P-3C and F/A-18 A/B. We have found it to be extremely easy to use and a very versatile code with which to create parametric models.

    We have recently used StressCheck® to obtain improved stress intensity factor solutions (Improved stress intensity factors for selected configurations in cracked plates and Improved stress intensity factors for a single corner crack at a loaded fastener hole) for five key generic configurations. These transferable parametric results have been published externally. One specific example is the non-linear contact analysis of a cracked, filled fastener hole, with both fastener and remote plate loading.”

    Dr. Manfred Heller, Head
    Structural & Damage Mechanics, DST Group

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