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rea2

Shear stress in a tetra mesh

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I have a tetra mesh which is more or less spherical and I would like to quantify the shear stress in the tetra elements. Is there a way to calculate the forces tangentially to the surface of the mesh (when the surfaces of the individual elements are not parallel to the surface of the mesh, like it is the case in a tetra mesh)? Is it for example possible to establish some kind of spherical coodinate system in the center of my mesh and calculate the stress perpendicular to an axis that points into the center of that coordinate system?

 

4j6exy.png

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On 11/21/2018 at 5:54 AM, Pranav Hari said:

Hi rea2

 

You can create a local coordinate system by clicking Analysis > systems.

 

image.thumb.png.1cf43d765f52c8805e2bc05b7c3ca920.png

 

Hope this video also will help for better understanding.

 

 

 

 

Thank you for your help! I know how to set up skews, but unfortunately it does not solve my problem. What I would need is a possibility to calculate the shear forces in each element, so the forces in the two directions which are normal to an axis which is normal to the meshs surface (which is a bit different for every element). I hope this is understandable ...

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Hi rea2

 

Did you mean extracting the shear stress from Hyperview?

You can check this then,

 

  1. click on contour optionimage.thumb.png.f4e10d667a95fdb7e0bf43bca7783b6a.png

2 Toggle the Result type to elemental stresses, Max shear and selection option to elements

image.thumb.png.f021387a44e07ea23ec837e0f2cbec85.png

 

 

3. Select the element which you want to view the shear stress and click apply

 

 

 

  

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