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Von Mises Stress Explained

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Old 29th July 2015, 09:34 PM
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Kevin Kirby Kevin Kirby is offline
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Default Von Mises Stress Explained

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For those of you who have been reading the biomechanics literature over the past decade, you will often see the term "Von Mises Stress" used to describe the stresses in an object (e.g. foot, foot orthosis, etc) when the internal stresses on that object under external loads are being simulated using Finite Element Analysis. I had never seen a good explanation of this relatively complex term until tonight when I found this explanation....cool!

Von Mises Stress Explained
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Old 3rd August 2015, 11:14 PM
Petcu Daniel Petcu Daniel is offline
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Default Re: Von Mises Stress Explained

A combination of "gross structural model of the foot", finite element analysis, internal deformations and stress in plantar soft tissues, von Mises stress,..., could be found in G. Yarnitzky et al. / Journal of Biomechanics 39 (2006) 2673?2689 : https://www.eng.tau.ac.il/~msbm/reso...-2673-1689.pdf
One interesting conclusion (which I hope I don't extract from its context) of the authors is : "... internal deformations and stresses in the plantar pad during gait cannot be predicted from merely measuring the foot?shoe force reactions." Should we add something to the definition of foot orthotics ?
Otherwise, to be honest, I don't know how to read, understand and properly use this work as it is a lot of (unknown for me ) science inside it !
Sincerely,
Daniel
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