midas FEA
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Release Note Release Date : May, 2013 / Product Version : FEA 2013 (v1.1) Enhancements 1. Pre Processing 1-1. Improvement in data import from midas Civil and midas Gen 1-2. Improvement in ‘Frame to Solid’ and ‘Frame to Plate’ functions 1-3. Creating tendon profiles by entering 3D coordinates 1-4. Improvement in mesh quality of Hexa-Dominant Mesh 2. Post Processing 2-1. Generating graphs from nonlinear static analysis results 2-2. Update geometry of analysis model using buckling mode shape

1-1. Improvement in data import from midas Civil and midas Gen Data import using mct and mgt file Cross-sections data that are not supported in midas FEA are imported as user-type. Cable elements are imported as truss elements. File > Import > midas MxT Previous version: Nodes and elements are only supported for the import from midas Civil or midas Gen. FEA 2013 (v1.1): Properties, boundary conditions, loads and analysis data are additionally supported. 2/7

1-2. Improvement in ‘Frame to Solid’ and ‘Frame to Plate’ functions This function converts frame in midas Civil to solid / plate elements in midas FEA. Geometry > Frame -> Solid, Frame -> Plate Frame model in Civil Frame model in Civil Previous version: Only one continuous straight line can be converted at a time. FEA 2013 (v1.1): More than one straight line can be converted at the same time. 3/7

1-3. Creating tendon profiles by entering 3D coordinates This new input method creates tendon profiles of spline or round type in the 3D space by entering 3D coordinates. Geometry > Curve > Create 3D > Tendon Profile Spline or Round type Tendon coordinates Symmetric copy and rotation of tendon for convenient tendon modeling The curve types (Spline, Round) which are frequently used in the tendon modeling provides the user with the easier way to create tendon profiles than previous version. 4/7

1-4. Improvement in mesh quality of Hexa-Dominant Mesh The algorithm of generating hexa-dominant mesh is improved to create mesh with high quality. Mesh > Auto Mesh > Solid(HEXD) Hexahedrons are created around the boundary at which high stresses are expected. Tetrahedrons are locally created inside the structure. Pyramid Tet. Trigonal Prism Pyramid Hexahedron 3908 nodes : 52% compared to tet mesh 4907 element s: 25% compared to tet mesh Generation of hybrid mesh Hybrid mesh using Auto-Mesh Solid (HEXD) Pyramid is inserted to connect tetrahedron and hexahedron. Tet mesh using Auto-Mesh Solid...

2. Post Processing Enhancement 2-1. Generating graphs from nonlinear static analysis results Generate graphs about the relationship of load & displacement and stress & strain for the nonlinear static analysis. It is possible to draw graphs using the results from different analysis cases. Post > Nonlinear Static Analysis > Nonlinear Static Result Graphs Select node or element with a relevant component. Select a graph type. This feature enables the user to generate graphs easily without the use of MS Excel.

2. Post Processing Enhancement 2-2. Update geometry of analysis model using buckling mode shape Create a new model file in which the geometry of analysis model is revised based on the mode shape of linear buckling analysis. The new model can be used for geometric and material nonlinear analysis to find a buckling load considering geometric imperfection. Post > Linear Buckling Analysis > Update Model with Imperfections Select a buckling mode to revise the geometry of model. Buckling mode shape New analysis model in which nodal coordinates are updated based on the selected buckling mode shape...