METHOD OF IMPROVING THE RELIABILITY OF PARTS Russian patent published in 1997 - IPC

FIELD: testing of construction materials and parts. SUBSTANCE: linear elastic system is obtained with the use of elastic properties of homogeneous material and with removal of concentrators, structure defects and plastic relaxed internal stresses. Spread of parameters and consequently faults in system is considerably restricted. When elastic internal stresses of different sign are used, durability of parts increases naturally. Deformation diagram linearity, its slope to abscissa axis, value and sign of elastic internal stresses, with due regard for load stresses, as well as result of comparison of part deformation diagram with standard deformation diagram are used as part reliability criteria. EFFECT: higher test results. 2 cl, 3 dwg, 2 tbl