METHOD OF ANALYSING STRAINS AND STRESSES IN FRAGILE STRAIN INDICATORS

摘要

FIELD: instrumentation.;SUBSTANCE: sound emission measurements of signals indicating fracture formation in fragile strained coat. Note here that additionally measured is the concentration of aerosol concentration in near-surface layer of fragile strained coat. At stress variation rate of up to 0.1 kN/s with allowance for 30 second correction for recording delay, oxide film and substrate destruction is revealed.;EFFECT: limiting state is diagnosed, early warning of structure destruction under bench and natural test conditions.;4 dwg