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  • About
    • Who We Are
    • Partners & Providers
    • News & Events
    • The ESRD Blog
    • Careers
    • Contact Us
  • Applications
    • What We Solve
    • Detailed Stress
    • Composites
    • Fracture Mechanics
    • Residual Stress
    • Sim Apps
  • Products
    • What We Develop
    • StressCheck Professional
      • StressCheck Core
      • Solvers
      • Advanced Modules
      • Utilities
      • Academic Licensing
    • StressCheck Apps
      • CAE Handbook
      • StressCheck Tool Box
    • Product Updates
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    • Training
    • Webinars
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    • Browse Our Resource Library
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    • StressCheck Tutorials

Multi-Fastener Analysis Tool

Home ProductsStressCheck-Powered AppsStressCheck Tool BoxMulti-Fastener Analysis Tool

Multi-Fastener Analysis Tool

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

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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  • When performing parametric structural analysis, ESRD’s p-element StressCheck FEA software is always my preferred choice due to the excellent solution quality, parametric framework, and superior computational efficiency. In fact, I recently used StressCheck to generate stress intensity factors along a parametrically defined elliptical crack-tip across 3,000 unique geometric configurations. Considering multi-body contact was present and all simulations were performed using a laptop, this was a task well suited for StressCheck.

    Dr. Lee Zambino
    Researcher, Villanova University

Testimonials

“We have been having very good success using the P-Version finite element code, StressCheck, to develop the 2-D solutions for two independent cracks in a plate. I have asked one of our AFGROW team members to model the plate and lug cases using StressCheck and compare them to the existing AFGROW closed-form solutions. [He] modeled the cases several different ways to be sure that he was getting the best possible solutions. He has verified that the bearing load option in StressCheck provides excellent results.”

Jim Harter, Team Leader-Analytical Fatigue/Fracture Reliability Team Air Force Research Laboratory (AFRL)

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