FIELD: instrumentation.
SUBSTANCE: permissible summary damage is calculated - plasticity loss for the entire time of operation. After measurements of metal hardness the actual loss of plasticity is set. During the assigned time they determine speed of increase of summary damages - losses of plasticity from various factors. The value of operation damage is accepted - loss of plasticity, and the residual resource of design is determined.
EFFECT: possibility to take into account both conditions of operation of metal structures and changes of structure and properties of metal that happen at the same time.
1 dwg
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