• Registered: 2014-11-03
  • Posts: 24

Topic: analysis of elastic material

Dear sir,

I modeled a plane stress model of a simple beam with elastic material using ATENA 2D and compared the results (stresses) with hand calculations and also with the program SAP (structure analysis program ) which used finite element analysis and the following results were obtained:

the stress of the mid span section at top and bottom of the section:

1-for ATENA : stress at top = -6.88 N/mm2 , stress at bottom=6.90 N/mm2
2-for SAP : stress at top = -7.051 N/mm2 , stress at bottom=7.051 N/mm2
3-for hand calculations  : stress at top = -7.025 N/mm2 , stress at bottom=7.025 N/mm2

For ATENA:

Why the ATENA results different from the sap and the hand calculations results?
Why the top and bottom stresses of the ATENA results are different?

Quote Post 1

  • dpryl
  • CC software developer
  • Offline
  • Registered: 2007-07-13
  • Posts: 1,107

Re: analysis of elastic material

Dear samuelhanna93, without seeing your ATENA model and the corresponding hand calculation, it is impossible to reasonably guess the source of the difference...

You may wish to read ATENA Troubleshooting, 2.1.10 The tensile (or compressive) stresses exceed the tensile (or compressive) strength or yield stress – what is wrong?

dpryl's Website

Quote Post 2