EXPERIMENTAL STUDIES OF THE STRENGTH OF A LONG BASE FLAT WAGONS BY CARRYING OUT ENDURANCE CYCLIC FATIGUE TESTS

The need for experimental validation of structural solutions concerning the frame long-base flat wagon and assessment accuracy theoretical calculations by carrying out resource cyclic fatigue tests based on results recent studies analysis in research strength wagons, was established. methodology a is presented. determining are described. endurance long-wheelbase before after improvement shown. Structural changes improvements at stage place initiation development crack structure Based research, actual elements determined design chosen order to prevent failure ensure required operational safety. improve evaluation methods welded joints wagons frames has been proven. content article will contribute construction new models mainline railway modernization existing models, as well increase their service life while operation.