Product: Abaqus/CAE
Benefits: Abaqus/CAE now provides several enhancements that improve the quality of the seeding functionality.
Description: The following enhancements to seeding and meshing are now available in the Mesh module:
When you apply curvature-based seeding to one or more curved edges in a part, Abaqus/CAE now creates a more accurate mesh along those edges and captures the peaks of the curves more effectively.
Abaqus/CAE typically places fewer seeds along straight edges than it places along curved edges, and this difference can cause large jumps in element sizes along the straight edges. The seeding algorithm now produces a more consistent mesh by inserting more seeds on the straight edges and biasing these seeds closer to the vertex where these edges meet. This change improves mesh quality in the area around these vertices, as shown in the example part in Figure 12–3, which was free meshed with tetrahedral elements. The image on the left shows the behavior before the seeding enhancements; the image on the right shows the current behavior.
If an imported part has poor parameterization along one or more edges of its geometry, Abaqus/CAE now seeds and meshes the part effectively despite the poor quality of these edges. This enhancement enables you to apply effectively uniform, biased, or curvature-based seeding along the affected edges.
When you use virtual topology to combine short, straight edges into curved edges and apply curvature-based seeding controls to the part, Abaqus/CAE now creates a higher-quality mesh along those curves. Figure 12–4 shows an example of this improvement: the previous seeding algorithm placed seeds at the ends of each small, straight edge (upper image); the new algorithm recognizes these short, straight edges as curves and seeds them accordingly (lower image).
