FIELD: measurement equipment.
SUBSTANCE: parameters of an individual fatigue curve are determined on the basis of a single exponential equation, which describes dependence of the number of cycles before damage on maximum stress of the cycle, for conditions of testing on air and in corrosive medium, by difference of which the resistance of corrosion fatigue is estimated. To determine parameters of the individual fatigue curve, dependence is built between the fatigue crack length and number of loading cycles, a rectilinear section of dependence is identified, according to which the number of loading cycles is determined, which correspond to conditions of stable growth of the fatigue crack.
EFFECT: possibility to do comparative analysis of welded joints of different structural composition on the basis of small-sample tests.
5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR EVALUATION OF RESIDUAL LIFE OF HYDRAULIC TURBINE IMPELLER AT BEYOND DESIGN BASIS OF OPERATION | 2019 |
|
RU2721514C1 |
| METHOD FOR INVESTIGATION OF SAMPLES OF HIGH-STRENGTH STEELS FOR STRESH CORROSION CRACKING | 2022 |
|
RU2786093C1 |
| METHOD OF DIAGNOSIS OF PARTS HAVING CORROSION AND FATIGUE DEFECTS | 0 |
|
SU1762190A1 |
| METHOD OF PREDICTION OF PARAMETERS OF FATIGUE DESTRUCTION OF SHEET METAL MATERIALS | 2020 |
|
RU2739154C1 |
| METHOD OF DETERMINATION OF CRITICAL VULNERABILITY OF MATERIAL TO DAMAGE AT CYCLIC LOADING | 2000 |
|
RU2170917C1 |
| METHOD FOR DETERMINING THE PARAMETERS OF FATIGUE RESISTANCE OF MATERIALS | 2021 |
|
RU2777863C1 |
| METHOD OF ACCELERATED MATERIAL FATIGUE TEST | 1990 |
|
RU2028602C1 |
| PROCESS OF DETERMINATION OF FATIGUE CHARACTERISTIC OF FERROMAGNETIC MATERIALS AND WELDS | 1995 |
|
RU2095784C1 |
| IMPROVED METHOD FOR CYCLIC TESTING OF FULL-THICKNESS SAMPLES OF MAIN PIPELINES FOR STRESS CORROSION CRACKING | 2023 |
|
RU2820157C1 |
| METHOD FOR ASSESSING FATIGUE DAMAGING METAL ELEMENTS OF AIRCRAFT STRUCTURES DURING FLIGHT TESTS BASED ON AN EXTENDED MODIFIED FATIGUE CURVE | 2018 |
|
RU2687228C1 |
