If the harder case gives part of the frame, the skin, a higher yield point, even if it is by virtue of a greater stretch before the yield, could that not be interpreted in layman's terms as "stronger", Don?
Yes, Stan, and it is being so interperted. Consider how we define a part failure of a gun. When a part suffers yield (not separation failure) it can't return to original size/shape. The case (skin) will be applying force to the core as it attempts to return to original size/shape and the core will be resisting the return to original as it now has a different size/shape due to having yielded.
Aside from the abrasion and wear resistance the hard skin affords, an increased resistance to yielding can easily be seen as strength, to non-engineers.
True, but the case (skin) adds no resistance to yielding as it has the same stress/strain characteristics as the core to the core's yield point. The case's higher yield occurs at a strain that will have yielded the softer core.
I think this is another case where an engineer and a layman has a simple disagreement over the definition of a term, in this case............... "strength". I have to sit with Miller on this one, on the layman's pew, though I bow to both of your superior understanding of steels.
I must disagree. It is easy to "see" the case as adding strength based on higher yield point. However, said higher yield point comes into play only after the core has yielded and is failed.
Rum
inating, over a cup of joe.
SRH
