Search the Community

I am trying modelling a simply supported plate model in with 10×10 mesh with density 25 Knm2 and E2510^6 and comparing it with results of other finite element applications and also with numerical matrix analysis by hand calculations. Both fem app and hand calculations results match but those of csi bridge and staad pro doesn't though they matched with each other. I was sure of correct modelling and also checked for equilibrium each time, I tried models of other dimensions l b and h as well. Each time fem results and hand calculations matched perfectly. For example I tried modeling 35×50 m plate with 2m depth. Hand and fem calculation results were 30 and 33 mm at centre resp. But csi bridge and staad pro for same parameters gives 230mm. For other models also the result are far too variable like this case only. Please I need urgent support. Any reference would be appreciated. Also how come two fem applications give these absurd results for exact same parameters?

Hello Everyone, Recently I have been busy with some checking work related to Shell structures in SAP2000 and Staad Pro. For plate analysis, I came across a good reference document. It is written for Staad but is very good for understanding of the plate forces and results as the plate force convention is almost same in all softwares (Designed for unit width, forces based on local coordinate system, and moment are in the direction of local axis). I can't remember where did I get this document as it was a direct download while exploring google. It is attached. Thank you. Plate Analysis Results and Design Forces in Computer Program.pdf

AoA, everyone. I am currently studying Design of Membrane structures using linear stress analysis. Some of the concepts are a bit hard to understand as the design often involves the use of finite element method and Mohr Circle concepts and theories.Please recommend any books specifically for this design just to consolidate my understanding about the topic. Thank you!! I am attaching a pdf file just to let u know all, what i am looking for. Linear_Stress_Analysis.pdf