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Snap fit calculations?

Asked by Jonathan_hodgkins (576points) January 31st, 2014

I am currently designing something that needs plastic snap fits in order to secure it. I have found several formulas online, but they aren’t intuitive to me. I am trying to figure out how the geometry of the design effects the perpendicular force, the stress and the strain. Can anyone help me by walking me through the process of the calculations and how it was derived? Thanks.

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