When comparing two models, when and why is it appropriate to compare deflections vs. stresses? For example, I have created a model of a concrete arch with 24 beam elements to investigate geometric nonlinear effects on a structure. I've also created a more involved model with 860 solid...
I am working on the PDelta analysis of an arch rib. The FEA model I've created is a shallow arch consisting of 24 elements. I'm trying to model the PDelta effects (ignoring Pdelta effects)by the notional load approach. I've performed an elastic analysis of the arch and have my initial...
I am currently trying to model non-linear geometric effects (Pdelta analysis) using a FEM elastic model. The model is for an arch member (in the vertical plane) consisting of 24 elements and is fixed at the supports. The software I am using will not perform a pdelta analysis for a FEM. The...
