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Have a question regarding the physics of heat checking. What I've seen in the literature is that it is due to alternating heating and cooling. However, I haven't seen anything that indicates whether it is influenced (and by how much) by rate of change of temperature rather than absolute...

Guys, Thanks for the input regarding the tierred wall design guidelines that I asked about. One question though still has not been addresses. If an existing slope is stable as is but I want to introduce a tierred wall system for this area, is it better to leave the existing slope intact and...

The material is AMS6532, heat treated to HRC 52-55. There is no post edm heat treating or grinding. The surface finsih requirement is 32uin as this is a sealing surface on the real part. We actually have conducted some bending fatigue testing (primary mode) which compared ground polished to two...

I'm looking to find if anyone has any background or can point me in a direction to find a resource that addresses the effects of wire and/or plunge EDM on the fatigue strength of high strength materials.

I have also been looking for engineering guidelines for mortarless rock wall construction. I've heard about the ARC Standard Rock Wall Cconstruction Guideline but have not been able to locate it. Can you point me in the direction of its source ?

Apparently, my description was somewhat misleading based on the response. The tierred rock wall(s) are only intended for the upper section which is a 7 ft drop over a 12 foot horizontal run, not anywhere else. The real question centered around violating the recommended 1 ft vertical to 2 ft...

I am a mechanical engineer who obviously doesn't know jack about geotechnical engineering and have a home project that I'm looking for some seasoned advice. I built a house a few years back backically on the edge of a small plateau/hilly area. Growing up in an area where the biggest hill was a...