CTRIA3 Element Checks and Default Bound Values

CTRIA3 Element Check

The following qualities of the CTRIA3 element are checked:

·        Aspect Ratio

The aspect ratio of a CTRIA3 element is defined as the ratio of the maximum side length to the minimum side length.

·        Skew Angle

The skew angle of a CTRIA3 element is the difference between 90 degrees and the minimum of three angles: These angles are defined, for the CTRIA3 element, as the smallest of the angles created when a line drawn from a node to the midpoint of the opposing side intersects a line connecting the midpoints of the adjacent two sides. The skew angle has a range from 0 degrees for a perfect triangle to 90 degrees for a collapsed triangle.

·        Vertex Angle

For each vertex, the angle is measured between its two adjacent edges. The minimum and maximum values of the three nodes are reported for the element.

CTRIA3 Default Bounds

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Element Quality Check