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Torsional stiffness of solid shaft (angular disp. of solid elements)

Hello everyone,

I have a solid shaft to which I am applying torque and have to find the torsional stiffness of the same.

But I have read that we can not find out the angular deformation of solid elements. So how to measure it in optistruct? Or do I have to use the method of dividing the obtained displacement by radius?

Regards

Bharat Hiranwale

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Altair Forum User

You can compute from nodal displacement by dividing by radius from reference point.

hiranwale_bharat

You can compute from nodal displacement by dividing by radius from reference point.

thank you for the reply.

tinh

another way is assign the shaft into a cylindrical system, so deform 'y' will be angle

Altair Forum User

Hi

another way is assign the shaft into a cylindrical system, so deform 'y' will be angle

Yeah, it's better way /emoticons/default_smile.png' alt=':)' srcset='/emoticons/smile@2x.png 2x' width='20' height='20'>

hiranwale_bharat

Hi

another way is assign the shaft into a cylindrical system, so deform 'y' will be angle

Hello tinh,

Thanks for the reply.

Can you please explain how can I define the cylindrical csys?

Regards,

Bharat

Altair Forum User

Hi,

Goto Anlaysis page>> Systems>>change system to Cylindrical from rectangular

<?xml version="1.0" encoding="UTF-8"?>

hiranwale_bharat

Thank you very much Prakash.

Regards,

Bharat