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Reinforced masonry and reinforced concrete elements are not linearly elastic because once a concrete element cracks, steel reinforcement is engaged. This simplification is valid only for stress states that do not produce yielding or fracture.
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Linear elasticity is a simplification, assuming linear relationships between the components of stress and strain. The elasticity of the material is described by a stress-strain curve, which shows the relationship between internal force per unit area and the relative deformation. Many of the analysis procedures used today assume thin plate theory and linear elastic behavior for the plate elements.
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Sometimes meshing is a manual process, and other times software programs will offer automatic meshing. Many software programs allow you to define the geometric boundaries of entire wall panels from movement joint to movement joint a movement joint is either an expansion joint in brick or control joint in concrete masonry and discretize those large geometries into smaller finite elements by a process called meshing.
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The properties assigned to the line and plate elements must be defined to associate a reasonable stiffness with each element. In structural engineering, most problems can be modeled with one-dimensional line elements, or two-dimensional plate or shell elements, and result in reasonably accurate solutions. Complicated three-dimensional elements, such as solid or brick elements, are not usually available in most commercial design software. The process of finite element modeling and analysis is an approximate solution which closely mimics an actual structure in a way that allows structural engineers to design for the stresses, forces, and deflections that are determined using the FEA method. What exactly is finite element analysis? It is the process of reducing simplifying a problem with infinite degrees of freedom to a finite number of elements with unique material properties.įEA programs can resolve even the most complex problems in a reasonable amount of time. Of course, each of the different FEA programs has their idiosyncrasies, all of which require designers to pay close attention when using these programs. To solve complex problems efficiently, and to gain a more in-depth understanding of the elements being analyzed, structural engineers are using Finite Element Analysis FEA. I was wondering what differences there may be that would be a problem for someone like me if I was to try to learn STAAD.Īre we talking about a few weeks of learning curve or much more time in your opinion? I imagine that the concepts of 3D analysis still apply although a different interface is used.Software programs for structural engineers continue to escalate in complexity, as engineers become increasingly reliant on those tools to increase accuracy in analysis and efficiency during design. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Join Us! By joining you are opting in to receive e-mail. Are you an Engineering professional? Join Eng-Tips Forums! Register now while it's still free! Already a member? Close this window and log in.
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