{"title":"结构各向异性对循环载荷下铁磁钢断裂模式的影响","authors":"O. P. Gopkalo, G. Ya. Bezlyudko, Yu. P. Kurash","doi":"10.1007/s11223-024-00666-0","DOIUrl":null,"url":null,"abstract":"<p>The potentials of nondestructive test methods are experimentally substantiated to get a cyclic loading fracture mode of ferromagnetic steels against their structural anisotropy, determined by coercive force measurements. Elastic static or cyclic loading was revealed to be consistent with a stable structure with certain anisotropy kinetics due to applied stresses. After plastic deformation, a new stable structure is formed induced by residual stresses. The anisotropy factor depended on the level of active relative stresses under elastic and elastoplastic, static, or cyclic loading. The change in kinetics direction for the anisotropy factor with elastic or elastoplastic loading defines the safe range of mechanical loading caused by reversible damage processes, as well as the ranges of accumulation risks for irreversible fatigue, high- and low-cycle fatigue and quasistatic damages giving rise to corresponding fracture modes. The nondestructive coercimetric method permits setting the metal endurance, yield limit, and transition stress from low-cycle fatigue to low-cycle quasistatic fracture.</p>","PeriodicalId":22007,"journal":{"name":"Strength of Materials","volume":"4 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Structural Anisotropy on a Fracture Mode of Ferromagnetic Steels Under Cyclic Loading\",\"authors\":\"O. P. Gopkalo, G. Ya. Bezlyudko, Yu. P. Kurash\",\"doi\":\"10.1007/s11223-024-00666-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The potentials of nondestructive test methods are experimentally substantiated to get a cyclic loading fracture mode of ferromagnetic steels against their structural anisotropy, determined by coercive force measurements. Elastic static or cyclic loading was revealed to be consistent with a stable structure with certain anisotropy kinetics due to applied stresses. After plastic deformation, a new stable structure is formed induced by residual stresses. The anisotropy factor depended on the level of active relative stresses under elastic and elastoplastic, static, or cyclic loading. The change in kinetics direction for the anisotropy factor with elastic or elastoplastic loading defines the safe range of mechanical loading caused by reversible damage processes, as well as the ranges of accumulation risks for irreversible fatigue, high- and low-cycle fatigue and quasistatic damages giving rise to corresponding fracture modes. The nondestructive coercimetric method permits setting the metal endurance, yield limit, and transition stress from low-cycle fatigue to low-cycle quasistatic fracture.</p>\",\"PeriodicalId\":22007,\"journal\":{\"name\":\"Strength of Materials\",\"volume\":\"4 1\",\"pages\":\"\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-09-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Strength of Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s11223-024-00666-0\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, CHARACTERIZATION & TESTING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Strength of Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11223-024-00666-0","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
Effect of Structural Anisotropy on a Fracture Mode of Ferromagnetic Steels Under Cyclic Loading
The potentials of nondestructive test methods are experimentally substantiated to get a cyclic loading fracture mode of ferromagnetic steels against their structural anisotropy, determined by coercive force measurements. Elastic static or cyclic loading was revealed to be consistent with a stable structure with certain anisotropy kinetics due to applied stresses. After plastic deformation, a new stable structure is formed induced by residual stresses. The anisotropy factor depended on the level of active relative stresses under elastic and elastoplastic, static, or cyclic loading. The change in kinetics direction for the anisotropy factor with elastic or elastoplastic loading defines the safe range of mechanical loading caused by reversible damage processes, as well as the ranges of accumulation risks for irreversible fatigue, high- and low-cycle fatigue and quasistatic damages giving rise to corresponding fracture modes. The nondestructive coercimetric method permits setting the metal endurance, yield limit, and transition stress from low-cycle fatigue to low-cycle quasistatic fracture.
期刊介绍:
Strength of Materials focuses on the strength of materials and structural components subjected to different types of force and thermal loadings, the limiting strength criteria of structures, and the theory of strength of structures. Consideration is given to actual operating conditions, problems of crack resistance and theories of failure, the theory of oscillations of real mechanical systems, and calculations of the stress-strain state of structural components.