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Basic TerminologiesStructural analysis Stress Strain Poisson ratio Hook's law Young's modulus Bending moment Shear force Stress strain curve for various materials Linear Nonlinear Isotropic vs. anisotropic vs. orthotropic
Introduction to FEM & FEA FEM-Finite element method FEA –Finite element analysis
FEM Finite element method of structural analysis was created by academic and industrial researches during 1959’s and 1960’s Theoretical approach. Examples Euler's rule, LaGrange method, Newton raphson method, Fourier series
Nature of FEM Force method (Forces unknown) Strain energy method Consistent deformation method Matrix flexibility method Clayperons theorem of 3 moments Displacement method (Displacements unknown) Kanis method Slope deflection method Matrix stiffness method Moment distribution method FEM
FEA FEA- simulate loading conditions on design & determine design response to these conditions The design is modeled using discrete elements called elements The sum of response of all elements in the model gives the response of design
Problem types in FEA Boundary value problem-static and steady state analysis Initial value problem-fluid flow Eigen value problem-Modal analysis, vibration and natural frequency Boundary initial value problem-forced vibration, transient and dynamic analysis
FEM Nodes Elements Types of elements 1D-Line element(Min 2 nodes) 2D-Plane element (Area-Min 4 node) 3D-Solid element (Volume-min 8 nodes)
Meshing Process of discritization of a structure into element and nodes Infinite no of D.O.F to Finite D.O.F Types of discritization Natural Artificial
Basic terminologies meshing Aspect ratio Skewing Warp age Types of refinement H refinement P refinement
Meshing-Importance & drawbacks Why should we mesh Element quality Problems associated with meshing
ABOUT STAAD PRO A comprehensive integrated FEA and design solution, including a state of the art user interface, visualization tools and integrated design codes Capable of analyzing a structure exposed to dynamic response, soil structure interaction or wind, earthquake and moving loads
Static analysis Analysis of a structure for various loads under static condition i.e. component under rest when loads are applied Examples Holding devices-Clamp or fixture analysis Types Linear analysis Non linear analysis
Dynamic analysis Analysis of a structure for various loads under Dynamic condition i.e. component is in motion when loads are applied or time varying loads Examples Suspension systems of a vehicle Types Linear analysis Non linear analysis
Structural analysis-Design consideration Change design Alternate material
STAAD.Pro meets the rigid requirements of NUPIC/NRC (Nuclear Regulatory Commission) by conforming to the 10CFR PART 50, APPENDIX B, Section II, "Quality Assurance Program" and ASME NQA-1-2000 (Quality Assurance Requirements for Nuclear Facility Applications) standards. Development, maintenance, and support are all based upon the highest quality standards.
About NRC The U.S. Nuclear Regulatory Commission (NRC) was created as an independent agency by Congress in 1974 to enable the nation to safely use radioactive materials for beneficial civilian purpose while ensuring that people and the environment are protected.
Features of STAAD PRO Analysis The STAAD Analysis Engine has 2D And 3Dcapabilities for solving problems containing Beams, plate elements and 8 node bricks. A wide range of support conditions, load types and various other member/element specifications are available for combination with these features
Features of STAAD PRO Postprocessor - Space Frame
Products Products for the analysis and design of buildings, bridges, plants, bridges, and civil structures: STAAD FOUNDATION STAAD PRO Advanced Analysis Module STAAD.beava Section wizard STAAD OFFSHORE STAAD(X).Tower LEAP PRESTO LEAP VERTEX LEAP PC-HELP Revit Structure Link RAM Elements RAM Concept RAM Connection RAM Structural System RAM Steel RAM Frame RAM Foundation RAM Concrete
Other products Documentation and BIM products for enabling the creation of drawings and Building Information Modeling: Bentley Structural RAM CAD studio
Other products Engineering Analysis (CAE) products for analytical tools for stress and pipe-stress analysis, fluid-flow and pulsation analysis, and local stress analysis: Bentley Auto PIPE
Other products Detailing products for structural steel and concrete reinforcing detailing: Bentley Power Rebar ProStructures ProSteel ProConcrete