ESyS-Particle

Friction angle - radians or degrees

Asked by Piotr Klejment

Hello!

Following the title of the post, I would like to ask if a friction angle is in radians or degrees?

Thank you and regards!

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Dion Weatherley
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Best Dion Weatherley (d-weatherley) said : 		#1

Hi Glaubiger,

To my knowledge ESyS-Particle interaction groups do not use friction angle per se as an input parameter. BrittleBeamPrms has a "tanAngle" parameter to define the friction angle but this should be supplied as the tangent of the angle e.g. 45 degrees equates to tanAngle=1.0.

BTW, Python assumes radians by default when using trigonometric functions in the math library. The math library has degrees(..) and radians(..) subroutines to easily convert between the two.

Cheers,

Dion

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Piotr Klejment (glaubiger) said : 		#2

Thanks Dion Weatherley, that solved my question.