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I work in the Aerospace industry as an NDT Engineer and would like a clear and precise definition of both static overload and high cycle fatigue in aircraft materials.

2006-07-08 03:14:14 · 4 answers · asked by stevewrightndt 1 in Cars & Transportation Aircraft

4 answers

Static overload is a load placed on the item that does not vary and exceeds the load bearing capability of the part. This is pretty predictable.

High-cycle fatigue is the number of load reversals (a maximum to minimum variation either +/- or zero-maximum) that an item can withstand before the expectation of part failure (it is statistical and not absolute).

Any good Machine Design book will describe these in more detail and for some reason it is always seems to be Chapter 6.

2006-07-08 03:23:26 · answer #1 · answered by Steve D 4 · 0 0

Statics (as opposed to dynamics) refers to lack of motion. "Static overload" is a condition in which a material or part's strength or rated strength is exceeded while not in motion, as on a launchpad.
This leads to failure (excessive strain, cracking,
fracture, etc).
High cycle failure is a flaw in a material or part that appears after many, many repetitions of the same motion or action, leading to fracture or some form of incorrect out of tolerance operation.

2006-07-08 03:25:08 · answer #2 · answered by helixburger 6 · 0 0

You're an NDT engineer and don't know these definitions?? Where the hell did you get your degree?? Or did you lie like a rug on your resume??

2006-07-08 03:37:16 · answer #3 · answered by Bostonian In MO 7 · 0 0

your telling porkies , i have C& G AERO ENG ,you should know this

2006-07-08 14:23:10 · answer #4 · answered by bitsinbobs 2 · 0 0

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