Page Comparison

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Code Block

<O N="FEMeshSurface Test" T="Project" TransAlignRule="Right">
    <O N="Example" T="FEMeshSurface" CX="15" CY="60" ConstraintPts="[]" Material="@NULL|Material" Surface="@NULL|Surface" CoorSys="@NULL|CoorSys" Group="@NULL|FEGroup" IsConstraint="1">
        <O T="Surface">
            <O T="Point" X="0" Y="0" />
            <O T="Point" X="240" Y="0" />
            <O T="Point" X="240" Y="240" />
            <O T="Point" X="0" Y="240" />
        </O>
    </O>
</O>

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ConstraintPoints

The ConstraintPoints parameter forces additional point or points to be assigned as nodes.

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ConstraintPoints

The ConstraintPoints parameter forces additional point or points to be assigned as nodes.

Code Block

<O N="FEMeshSurface Test" T="Project">
    <O N="Example" T="FEMeshSurface" CX="15" CY="60" ConstraintPts="[[10,10],[230,230]]" Material="@NULL|Material" Surface="@NULL|Surface" CoorSys="@NULL|CoorSys" Group="@NULL|FEGroup" IsConstraint="1">
        <O T="Surface">
            <O T="Point" X="0" Y="0" />
            <O T="Point" X="240" Y="0" />
            <O T="Point" X="240" Y="240" />
            <O T="Point" X="0" Y="240" />
        </O>
    </O>
</O>

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MeshDirection

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MeshDirection

As a default setting, mesh direction is decided by the polygon’s surface. If a mesh surface is not a rectangle, there will be non-perpendicular mesh. To demonstrate that see the following figure where the mesh is created parallel to the blue arrows.

Code Block

<O N="FEMeshSurface Test" T="Project">
    <O N="Example" T="FEMeshSurface" CX="15" CY="60" ConstraintPts="[]" Material="@NULL|Material" Surface="@NULL|Surface" CoorSys="@NULL|CoorSys" Group="@NULL|FEGroup" IsConstraint="1">
        <O T="Surface">
            <O T="Point" X="70" Y="70" />
            <O T="Point" X="150" Y="0" />
            <O T="Point" X="200" Y="240" />
            <O T="Point" X="155" Y="360" />
            <O T="Point" X="0" Y="240" />
        </O>
    </O>
</O>

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To control the direction of the created mesh lines, the MeshDirection parameter is introduced. 3 points need to be defined which represents two lines in order to set this parameter. MeshDirection="[[0,0,0],[1,0,0],[1,1,0]]" is set for this example and the created mesh lines are parallel to global X and Y axes.

Code Block

<O N="FEMeshSurface Test" T="Project">
    <O N="Example" T="FEMeshSurface" CX="15" CY="60" ConstraintPts="[]" MeshDirection="[[0,0,0],[1,0,0],[1,1,0]]" Material="@NULL|Material" Surface="@NULL|Surface" CoorSys="@NULL|CoorSys" Group="@NULL|FEGroup" IsConstraint="1">
        <O T="Surface">
            <O T="Point" X="70" Y="70" />
            <O T="Point" X="150" Y="0" />
            <O T="Point" X="200" Y="240" />
            <O T="Point" X="155" Y="360" />
            <O T="Point" X="0" Y="240" />
        </O>
    </O>
</O>

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GridLinesX, GridLinesY, (GridLinesZ)

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GridLinesX, GridLinesY, (GridLinesZ)

GridLinesX and GridLinesY parameters force respective axis mashes to be created on the specified line. In other words, GridlinesX and GridLinesY overwrite CX and CY respectively. An example is demonstrated by using the GridLinesY parameter. Generally, beam mashes are made along the X direction in bridges, the GridLinesY parameter can be thought of as beam reference lines.

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Code Block

<O N="FEMeshSurface Test" T="Project">
    <O N="Example" T="FEMeshSurface" Alignment="RoadwayAlignment" CX="15" CY="60" ConstraintPts="[]" MeshDirection="[[0,0,0],[1,0,0],[1,1,0]]" GridLinesY="[GridLine1,GridLine4,GridLine3,GridLine2]" Material="@NULL|Material" Surface="@NULL|Surface" CoorSys="@NULL|CoorSys" Group="@NULL|FEGroup" IsConstraint="1">
        <O T="Surface">
            <O T="Point" X="0" Y="0" />
            <O T="Point" X="600" Y="0" />
            <O T="Point" X="600" Y="240" />
            <O T="Point" X="0" Y="240" />
        </O>
    </O>
    <O N="RoadwayAlignment" T="Alignment" Station="0" Azimuth="1.57079632679">
        <O T="Circular" Radius="2400" Length="4800" />
        <O T="CrossSection" Station="0" LeftEdgeToHCL="240">
            <O T="CrossSectionSegment" Width="480" Slope="0" />
        </O>
        <O T="ElevationPoint" Station="0" Elevation="0" />
    </O>
    <P N="GridLine1" V="[[0,0],[600,0]]" />
    <P N="GridLine2" V="[[0,240],[600,240]]" />
    <P N="GridLine3" V="[[0,100],[600,160]]" />
    <P N="GridLine4" V="[[0,60],[600,80]]" />
</O>

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]]" />
</O>

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ConstraintLines

ConstraintLines parameter forces additional nodes to be created along this line definition. This parameter is useful for skewed supports.

Code Block

<O N="FEMeshSurface Test" T="Project">
    <O N="Example" T="FEMeshSurface" Alignment="RoadwayAlignment" CX="15" CY="60" ConstraintPts="[]" MeshDirection="[[0,0,0],[1,0,0],[1,1,0]]" GridLinesY="[GridLine1,GridLine4,GridLine3,GridLine2]" ConstraintLines="[ConstraintLine1]" Material="@NULL|Material" Surface="@NULL|Surface" CoorSys="@NULL|CoorSys" Group="@NULL|FEGroup" IsConstraint="1">
        <O T="Surface">
            <O T="Point" X="0" Y="0" />
            <O T="Point" X="600" Y="0" />
            <O T="Point" X="600" Y="240" />
            <O T="Point" X="0" Y="240" />
        </O>
    </O>
    <O N="RoadwayAlignment" T="Alignment" Station="0" Azimuth="1.57079632679">
        <O T="Circular" Radius="2400" Length="4800" />
        <O T="CrossSection" Station="0" LeftEdgeToHCL="240">
            <O T="CrossSectionSegment" Width="480" Slope="0" />
        </O>
        <O T="ElevationPoint" Station="0" Elevation="0" />
    </O>
    <P N="GridLine1" V="[[0,0],[600,0]]" />
    <P N="GridLine2" V="[[0,240],[600,240]]" />
    <P N="GridLine3" V="[[0,100],[600,160]]" />
    <P N="GridLine4" V="[[0,60],[600,80]]" />
    <P N="ConstraintLine1" V="[[150,241],[400,-1]]" />
</O>

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,241],[400,-1]]" />
</O>

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GridsXAlignH, GridsYAlignH, (GridsZAlignH)

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Code Block

<O N="FEMeshSurface Test" T="Project">
    <O N="Example" T="FEMeshSurface" Alignment="RoadwayAlignment" CX="15" CY="60" ConstraintPts="[]" MeshDirection="[[0,0,0],[1,0,0],[1,1,0]]" GridLinesY="[GridLine1,GridLine4,GridLine3,GridLine2]" ConstraintLines="[ConstraintLine1]" Material="@NULL|Material" Surface="@NULL|Surface" CoorSys="@NULL|CoorSys" Group="@NULL|FEGroup" IsConstraint="1">
        <O T="Surface">
            <O T="Point" X="0" Y="0" />
            <O T="Point" X="600" Y="0" />
            <O T="Point" X="600" Y="240" />
            <O T="Point" X="0" Y="240" />
        </O>
    </O>
    <O N="RoadwayAlignment" T="Alignment" Station="0" Azimuth="1.57079632679">
        <O T="Circular" Radius="2400" Length="4800" />
        <O T="CrossSection" Station="0" LeftEdgeToHCL="240">
            <O T="CrossSectionSegment" Width="480" Slope="0" />
        </O>
        <O T="ElevationPoint" Station="0" Elevation="0" />
    </O>
    <P N="GridLine1" V="[[0,0],[600,0]]" />
    <P N="GridLine2" V="[[0,240],[600,240]]" />
    <P N="GridLine3" V="[[0,100],[600,160]]" />
    <P N="GridLine4" V="[[0,60],[600,80]]" />
    <P N="ConstraintLine1" V="[[150,241],[400,-1]]" />
</O>

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,-1]]" />
</O>

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FEMeshRegion

The FEMeshRegion core object allows the user to define additional parameters on the specified surface. This can be beneficial for use of FEGroup and Filter.

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Code Block

<O N="FEMeshSurface Test" T="Project">
    <O N="Example" T="FEMeshSurface" CX="15" CY="60" ConstraintPts="[]" MeshDirection="[[0,0,0],[1,0,0],[1,1,0]]" Material="@NULL|Material" Surface="@NULL|Surface" CoorSys="@NULL|CoorSys" Group="@NULL|FEGroup" IsConstraint="1">
        <O T="Surface" Node1OffZ="10" Node3OffZ="10">
            <O T="Point" X="0" Y="0" />
            <O T="Point" X="600" Y="0" />
            <O T="Point" X="600" Y="240" />
            <O T="Point" X="0" Y="240" />
        </O>
    </O>
</O>

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="240" />
        </O>
    </O>
</O>

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