Is bone deep knowledge required to know if fluctuation cause wear due to physical stress of heat/cooling cycles or something else? It seems like something that

Is bone deep knowledge required to know if fluctuation cause wear due to physical stress of heat/cooling cycles or something else? It seems like something that countless hardware designers would need to know. Certainly there are many more nuances to wear patterns than that, but that was kind of the basic question I was asking. But as I said originally I was asking from a position of interested though ignorant curiousity, so my assumption that most hardware designers would need to understand this sort is stress might be... discontinuous with the factual nature of the physical & human experiential phenomena relevant to the question. (e.g., stupid assumptions) :)