METHOD OF MANUFACTURE OF STRAIN GAUGE TO CHECK CYCLIC DEFORMATIONS Russian patent published in 2003 - IPC

FIELD: measurement of deformations and stresses on surfaces of parts of machines subjected to cyclic deformation. SUBSTANCE: method of manufacture of strain gauges to check cyclic deformations consists in that electrolytic foil of plastic homogeneous material, for instance, copper, aluminum, nickel, silver or gold, is cut into separate plates which are subjected to cyclic deformation under known functions of change of stress amplitude along and transverse to plate till emergence of response of plate material to maximum stress amplitude is visualized when boundary of areas of variable damage of plate material and first black spots on plate surface achieves certain location while shifting along plate surface in process of measurement of checked cyclic deformations. EFFECT: reduced labor input to examination of state of parts, increased accuracy of method. 1 dwg