StressCheck Result for NAFEMS LE1: Plane Stress – Elliptic Membrane

To compliment and bolster our recent S.A.F.E.R. Simulation articles, and to provide the engineering analysis community quantifiable insight into the performance of our Numerical Simulation technology, verified StressCheck results for “The Standard NAFEMS Benchmarks” are now available for download in our Resource Library.

In the first volume of the StressCheck Benchmarks Guide, we focused on solving the Linear Elastic Test benchmarks referenced in “The Standard NAFEMS Benchmarks”, Rev. 3, October 1990.  In accordance with Simulation Governance rules, we ensured the benchmark’s target extraction converged before reporting our results or comparing with the NAFEMS benchmark reference.

You can download the first volume here:

About Our Results

• ESRD defines a “Minimum Mesh” as the least-refined mesh required to achieve numerical convergence within 1% of the target extraction, and “Dense Mesh” as an overly-refined mesh relative to the “Minimum Mesh” to demonstrate that adding more elements produced insignificant changes in the target extraction.
• The discretization error was reported to be < 1% for all StressCheck results in all benchmark models.  This means that the results no longer changed significantly as the degrees of freedom were increased, thus providing solution verification in our results.
• The StressCheck results and the NAFEMS reference benchmark solutions differed by < 3% for all benchmarks.  Differences in results were justified in the notes for each problem.

Benchmark Suggestions/References?

Do you have a benchmark challenge for ESRD?  If you can provide a reference, and it is within our current capabilities, we will be happy to consider it for future publication!