HyperMesh 2024.1 Connector Questions
Hello,
I have some questions listed below that arise from work that I'm doing in the attached .hm file. I'm hopeful that whoever is bold enough to address these questions might be aided by the .hm file.
There are several references to the connector seam quad help page:
- can weld leg lengths be specified (Wh and Wv in Figure 16)?
- how to change alpha (Figure 16)?
3. How to specify mesh density for HAZ components? This example has a 1" HAZ and a 0.375" mesh density
4. angled weld cap - my attempt at creating a rounded or angled cap can be seen below and in the attached .hm file. How do I achieve the cap angle and not a sharp corner?
5. mesh quality in angled surfaces - are there some settings that control the generation of these overlapped and/or poor quality elements in a transition region (the brown plate has a shallow bend at this location)?
6. What's the difference between "vertical" and "vertical (edge)"? Can you provide a definition of "edge" and "horizontal" in terms of the weld shape in the connector control?
7. Edge treatment - for this Seam Quad line connector, I'd like there to be no overlap between the vertical elements generated through the line connector and the base vertical component (brown transparent part). Both "keep" and "cut" result in overlapping elements, and the "treatment" option results in a failed connector.
8. flip angle direction - is there any way to change the direction of the single angled line connector realization within the connector control? I can do it by changing the normals of the shell before realization, but I'd like to know if this is a connector controllable option.
other side:
Thanks!
-Mandy
Answers
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Hello Mandy,
Please find below some feedback on your questions:
1. Can weld leg lengths be specified (Wh and Wv in Figure 16)?
Sure. The dimension scheme is set by default to 'thickness dependent' - in other words, weld dimensions are dependent on the thicknesses t1 and t2.
But you can also manually define discrete values for the weld dimensions using the 'user input' scheme.
2. How to change alpha (Figure 16)?
Using the 'user input' scheme, the dimensions can be defined using a length or an angle.
3. How to specify mesh density for HAZ components? This example has a 1" HAZ and a 0.375" mesh density
We currently do not support multiple elements for the HAZ layer => 1 layer.
But you adapt the HAZ lengths in various way as detailled there ⇒
4. angled weld cap - my attempt at creating a rounded or angled cap can be seen below and in the attached .hm file. How do I achieve the cap angle and not a sharp corner?This is control by the 'Cap angle' and 'Runoff Angle' values. Cap Value should be >45° and <90°
In your model, the Cap value is manually set to 90 from the Entity Editor (overwriting the value from the connector control). That's why you get a hard corner.5. mesh quality in angled surfaces - are there some settings that control the generation of these overlapped and/or poor quality elements in a transition region (the brown plate has a shallow bend at this location)?
All settings may have an impact on the element quality. But as a best pratice, please ensuring the underlying mesh, for all links, has good quality is crucial when realizing Seam Quad connectors. In your case, just unrealize the connector in order to automatically rebuild the mesh. That should fix the mesh quality issue. And the re-realize the connector.
6. What's the difference between "vertical" and "vertical (edge)"? Can you provide a definition of "edge" and "horizontal" in terms of the weld shape in the connector control?
Just compare figure 3 and figure 7 from the dedicated page on the online help:
Weld shape is a little bit different => without (edge) means vertical and angled weld have a shared node edge.
7. Edge treatment - for this Seam Quad line connector, I'd like there to be no overlap between the vertical elements generated through the line connector and the base vertical component (brown transparent part). Both "keep" and "cut" result in overlapping elements, and the "treatment" option results in a failed connector.
In that case, activate the 'Use Edge to T, B' option:
If the weld is classified as a T or a B weld, the weld is created from the edge. You do not need to put any values in for Vertical Length for T welds and Width for B welds.8. flip angle direction - is there any way to change the direction of the single angled line connector realization within the connector control? I can do it by changing the normals of the shell before realization, but I'd like to know if this is a connector controllable option
Yes, this is control by the option 'Angle direction'.
Regards,
Fred JURAS.1
Altair Employee
