I want to write a software for analyse and design of base plate in freecad. I searched almost of FEM topic in freecad forum. for concrete element, pre/post tension concrete, rebar, contact elements and so on, all so i model base plate with 3d element and shell element. recently i found that IDEA STATICA software use CBFEM method for analyse and design of steel connection. i want to know:
I must use CBFEM method or i can only use FEM method with shell element in freecad? and basically what is different between CBFEM and FEM?!
these are first model that i have been try to examine freecad mesh generation, in absence of concrete and anchor bolts or stiffeners.
this page describe the CBFEM element for analysing:
Code: Select all
CBFEM analysis model Before the analysis starts, the connection CBFEM model is automatically generated. It consists of plates, bolts, anchors and welds. All plates are meshed with shell elements. Bolts and anchors are represented by special nonlinear springs and welds are discretized and modeled as special constrains enabling the stress redistribution due to their plastification.