B Creep and its effects on a material

AI Thread Summary
Deformation in materials can occur under stress levels lower than the yield point due to factors like temperature and time. High temperatures reduce intermolecular attraction, allowing even low stress to cause deformation. Conversely, at low temperatures, it is expected that forces below the yield point should not lead to deformation, as intermolecular forces should dominate. However, creep can occur due to mechanisms such as diffusional processes or dislocation glide, which can enable deformation over time. Understanding these mechanisms is crucial for comprehending material behavior under varying conditions.
Aurelius120
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TL;DR Summary
So I learnt that even at low temperatures materials subject to long periods of low stress would still break
What I do not get is why should a stress much lower than yield point cause deformation in a material?
If temperature is high intermolecular attraction is reduced and thus even low stress can deform things.

But if it is low
Then a force lower than yield point should be less than intermolecular attraction and should not deform it irrespective of time

Right?

Thank you
 
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