• 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
    • Getting Started
    • Software FAQ’s
    • Documentation
    • Training
    • Consulting
    • Product Updates
  • Simulation
    • How We Simulate
    • Simulation Governance
    • History of FEA
    • Dictionary & Terms
    • Simulation FAQ
    • Simulation References
  • Resource Library
    • Case Studies
    • Webinars
    • Product Demos
    • Product Downloads
    • StressCheck Tutorials
    • Sim App & API Development
  • Contact Us
  • Register
Login

Forgot Password?

Login
ESRD ESRD ESRD ESRD
  • 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
    • Getting Started
    • Software FAQ’s
    • Documentation
    • Training
    • Consulting
    • Product Updates
  • Simulation
    • How We Simulate
    • Simulation Governance
    • History of FEA
    • Dictionary & Terms
    • Simulation FAQ
    • Simulation References
  • Resource Library
    • Case Studies
    • Webinars
    • Product Demos
    • Product Downloads
    • StressCheck Tutorials
    • Sim App & API Development
  • Home
  • >
  • Our Simulation Technology

Our Simulation Technology

ESRD’s flagship software product, StressCheck®, is an advanced FEA tool having numerous unique technical capabilities and inherent structure to support verification and validation (V & V).

It is the first and so far only FEA software product designed to support Simulation Governance and V & V.

FEA + Simulation Governance = Verifiable Solutions

We take V&V and Simulation Governance seriously.

Our verifiable solutions are made possible by implementing the requirements of Simulation Governance.  Simulation Governance controls and standardizes the simulation process much like Corporate Governance controls and standardizes the functioning of a corporation.

Learn More

The yardstick that measures successful implementation of Simulation Governance is validation of the model and verification of the solution.  As these terms can be misused in practice, the Dictionary & Terms glossary was developed to help us speak the same technical language.

Our Approach to Numerical Simulation

StressCheck®‘s Simulation Technology, or Sim Tech, is based on higher-order hierarchic finite element technology, the result of decades of R&D on numerical simulation advancements.

Learn More

StressCheck®‘s engine has inherent differentiators which support verification and validation of FEA solutions.

We keep our element library simple, our solutions hierarchic and our post-processing unrestricted.

How We Benchmark

How can you tell if your current FEA code can guarantee reliability? If you submit a result to management and you can tell them that the margin of error for your prediction is within, say, 2% and you can back it up, then you are using a code that guarantees reliability.

Without verification, benchmarking is moot. We only benchmark with verified FEA results.

Learn More

What Powers Our Simulation Technology

StressCheck® Professional is based on the p-version finite element method. Because the p-version is a more comprehensive implementation of the finite element method than the more traditional h-version, StressCheck® Professional can be operated in both the “h-mode” (least efficient) and “hp-mode” (most efficient).

Additionally, higher-order (p-version) FEA converges at least twice as fast as the lower-order (h-version, what other FEA codes typically have). Use fewer degrees of freedom to get higher solution quality. But it gets even better: with proper meshing the error of approximation decreases exponentially. A problem that takes hours to solve with a traditional h-code will only take minutes with StressCheck®.

Download White Papers

Also, StressCheck® is the only FEA program in existence today which was designed for controlling both the errors of discretization and idealization.

  • The errors of discretization are the errors controllable by the finite element mesh and the polynomial degree (h- or p-extensions).
  • The errors of idealization are the errors associated with the restrictions incorporated in mathematical model.

 

This allows StressCheck® to support numerical simulation like no other FEA product.

Key Benefits of Our Simulation Technology

Toggle to view some advantages

Convergence

What supporting evidence does the analyst have that he converged to the right solution?

Using traditional FEA codes the analyst is forced to refine the mesh in areas of interest, rerun the solution, and compare two or three solutions to check for convergence.

With StressCheck® the analyst creates one mesh, runs an automatic sequence of solutions of increasing polynomial orders, and reviews supporting evidence that he has converged to the right solution.

Validate the model. Verify the solution. Back it up with the solution set. If your analyst doesn’t have the right tool, he can’t guarantee reliability or is spending way to much time trying to.

Superconvergent extractions increase the speed to arrive at a more accurate prediction for, say, stress intensity factors or energy release rates.

Mesh Independence and Hierarchic Modeling

In StressCheck® the modeling errors are treated separately from the errors of approximation so that the analyst can validate the model and verify the result independently.

Other FEA programs typically have hundreds of elements where StressCheck® would have just one. To us a quadrilateral is a quadrilateral; why would you need more than one?

StressCheck® treats the attributes of the element separately from the topology of the element unlike any other code. Switching between heat transfer and elasticity, for example, does not require changing elements or remeshing.

That’s what we call hierarchic modeling. With hierarchic modeling our formula is simple:

1 Mesh + 1 Mapping + 8 Polynomial orders = Guaranteed Reliability

Standardization

As managers are promoted or re-assigned and as experienced engineers retire or leave for other opportunities they take with them valuable assets of the corporation: experience and know-how forged from countless design changes and analyses. These intellectual assets can be preserved and re-purposed with the CAE Handbook powered by StressCheck®.

The proper application of numerical simulation procedures requires subject expertise and expertise in computational engineering that are not common or readily available.

However, it is possible to leverage both kinds of expertise through standardization of recurring analysis tasks just like handbooks and manuals have provided the expertise of specialists in applied mechanics to mechanical, aerospace, and structural engineers for decades.

The essential difference is that classical handbooks present results for parameterized problems solved by classical or empirical methods, whereas standardized CAE Handbook procedures rely on verified FEA solutions of parameterized models.  This allows standardization of models that are of much greater complexity and focus to be treated as entries in a parameterized electronic handbook with guaranteed reliability.

Need More Information About Our Simulation Technology?

Click below for FAQ’s and Selected References about our Simulation Technology, Numerical Simulation, Finite Element Modeling, Mathematical Modeling, Simulation Governance and more.

  • Sim Tech FAQ’s
  • Sim Tech References

Looking for Resources?

Interested in a Demo, Evaluation or Purchase?

Have a Software Question, Issue or Feature Request?

Recent News & Events

  • StressCheck v11, CAE Handbook v11 and StressCheck Tool Box 5.0 Released!
  • Happy Holidays from ESRD!
  • StressCheck User Experience v2.0 Survey Results

Quick Links

  • Getting Started
  • Product Updates
  • Software FAQs
  • Demos

Testimonials

  • “Of the three FEA products we use, StressCheck® gives me the most confidence when it comes to performing post-processing quality checks on multi-body contact analysis results.  StressCheck® has the capability to extract any data of interest and convergence information for that data at any location in the model domain; the other two FEA products do not.  And when it comes to interference fit multi-body contact solutions, I haven’t found any software to outperform StressCheck®.”

    In Service Support Center Engineer
    Navy Fleet Readiness Center-East

Subscribe to ESRD News & S.A.F.E.R. Simulation

Want to be a part of the discussion? Sign up to receive blog posts and other ESRD updates:

Member Portal

  • Member Login
  • Member Registration

 

Contact Us

© 2021 · Engineering Software Research & Development, Inc. | Terms & Conditions | Privacy & Cookie Policy | Software License Agreement | Software Maintenance and Technical Support Policy

[contact-form-7 id="885" title="Untitled"]
ESRD, Inc. collects your information for the sole purpose of identifying interest in our products and technologies. The information you provide herein will not be shared with any other organization. Please ensure the fields are up to date and click "Download" to download the software.