This PDF describes the new enhancements of midas FEA 2013 on Pre and Post 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 1. Pre Processing Enhancements 2. Post Processing 2-1. Generating graphs from nonlinear static analysis results 2-2. Update geometry of analysis model using buckling mode shape for more info, please visit: http://en.midasuser.com

1. A d v a n c e d N o n l i n e a r a n d D e t a i l A n a l y s i s S y s t e m
Release Note
Release Date : May, 2013 / Product Version : FEA 2013 (v1.1)
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
1. Pre Processing
Enhancements
2. Post Processing
2-1. Generating graphs from nonlinear static analysis results
2-2. Update geometry of analysis model using buckling mode shape

2. 2 / 7
Enhancementmidas FEA 1. Pre Processing
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.
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.
File > Import > midas MxT
Civil
FEA
Civil
FEA

3. 3 / 7
Enhancementmidas FEA
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.
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.
Geometry > Frame -> Solid, Frame -> Plate
Frame model
in Civil
Plate model
In FEA
Frame model
in Civil
Plate model
In FEA
1. Pre Processing

4. 4 / 7
Enhancementmidas FEA
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.
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.
Geometry > Curve > Create 3D > Tendon Profile
Spline or Round type
Tendon coordinates
Symmetric copy and
rotation of tendon
for convenient tendon
modeling
1. Pre Processing

5. 5 / 7
Enhancementmidas FEA
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.
Compared to the mesh consisting of tetrahedron only, hexa-dominant mesh in midas FEA provides
more efficient and better analysis results using much smaller number of elements.
1. Pre Processing
Mesh > Auto Mesh > Solid(HEXD)
Tet mesh using
Auto-Mesh Solid
Hybrid mesh using
Auto-Mesh Solid (HEXD)
7568 nodes
19421 element s
3908 nodes : 52% compared to tet mesh
4907 element s: 25% compared to tet mesh
Hex.
Pyramid
Tet.
Trigonal Prism
Generation of hybrid mesh
Hexahedron
Pyramid
Tetrahedron
Pyramid is inserted to connect tetrahedron and hexahedron.
Hexahedrons are created around
the boundary at which high
stresses are expected.
Tetrahedrons are locally created
inside the structure.

6. 6 / 7
Enhancementmidas FEA
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.
This feature enables the user to generate graphs easily without the use of MS Excel.
Select node or element
with a relevant component.
Post > Nonlinear Static Analysis > Nonlinear Static Result Graphs
Select a graph type.
2. Post Processing

7. 7 / 7
Enhancementmidas FEA 2. Post Processing
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.
Geometric imperfection can easily be included in the analysis model. The buckling behavior of the model can be further
investigated by performing geometric and material nonlinear analysis.
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 and
scale factor.