A. V. Zabolotsky, A. O. Migashkin, A. S. Grigor’ev, A. I. Dmitriev, M. Yu. Turchin, V. T. Khadyev, E. V. Shil’ko
{"title":"多轴载荷条件下具有规则排列球形孔隙的材料的裂纹成核模拟","authors":"A. V. Zabolotsky, A. O. Migashkin, A. S. Grigor’ev, A. I. Dmitriev, M. Yu. Turchin, V. T. Khadyev, E. V. Shil’ko","doi":"10.1007/s11148-023-00813-1","DOIUrl":null,"url":null,"abstract":"<p>Using the finite element method, a numerical investigation of the initial stage of crack propagation in a material containing spherical pores under multiaxial compression (constrained conditions) was carried out. The influence of the pore spacing and the mechanical properties of the material on fracture location and crack-propagation direction was analyzed for brittle and ductile materials. Material properties and the arrangement of defects were found to significantly influence the direction of crack propagation initiating on stress concentrators (structure defects), even in mutually perpendicular directions (for uniaxial compression). Numerical estimates were obtained for the characteristic sizes of the influence region of spherical pores on each other, beyond which the stress fields of the neighboring structural elements do not overlap. The dependence of the size of this influence region on the elastic characteristics of the matrix material was studied. The obtained results are important for numerically estimating the durations of the initial stages of the quasibrittle fracture of ceramic-based heterophase materials, particularly refractory materials.</p>","PeriodicalId":751,"journal":{"name":"Refractories and Industrial Ceramics","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Simulation of Crack Nucleation in Materials with Regularly Arranged Spherical Pores Under Multiaxial Loading Conditions\",\"authors\":\"A. V. Zabolotsky, A. O. Migashkin, A. S. Grigor’ev, A. I. Dmitriev, M. Yu. Turchin, V. T. Khadyev, E. V. Shil’ko\",\"doi\":\"10.1007/s11148-023-00813-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Using the finite element method, a numerical investigation of the initial stage of crack propagation in a material containing spherical pores under multiaxial compression (constrained conditions) was carried out. The influence of the pore spacing and the mechanical properties of the material on fracture location and crack-propagation direction was analyzed for brittle and ductile materials. Material properties and the arrangement of defects were found to significantly influence the direction of crack propagation initiating on stress concentrators (structure defects), even in mutually perpendicular directions (for uniaxial compression). Numerical estimates were obtained for the characteristic sizes of the influence region of spherical pores on each other, beyond which the stress fields of the neighboring structural elements do not overlap. The dependence of the size of this influence region on the elastic characteristics of the matrix material was studied. The obtained results are important for numerically estimating the durations of the initial stages of the quasibrittle fracture of ceramic-based heterophase materials, particularly refractory materials.</p>\",\"PeriodicalId\":751,\"journal\":{\"name\":\"Refractories and Industrial Ceramics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2023-12-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Refractories and Industrial Ceramics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s11148-023-00813-1\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Refractories and Industrial Ceramics","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11148-023-00813-1","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Simulation of Crack Nucleation in Materials with Regularly Arranged Spherical Pores Under Multiaxial Loading Conditions
Using the finite element method, a numerical investigation of the initial stage of crack propagation in a material containing spherical pores under multiaxial compression (constrained conditions) was carried out. The influence of the pore spacing and the mechanical properties of the material on fracture location and crack-propagation direction was analyzed for brittle and ductile materials. Material properties and the arrangement of defects were found to significantly influence the direction of crack propagation initiating on stress concentrators (structure defects), even in mutually perpendicular directions (for uniaxial compression). Numerical estimates were obtained for the characteristic sizes of the influence region of spherical pores on each other, beyond which the stress fields of the neighboring structural elements do not overlap. The dependence of the size of this influence region on the elastic characteristics of the matrix material was studied. The obtained results are important for numerically estimating the durations of the initial stages of the quasibrittle fracture of ceramic-based heterophase materials, particularly refractory materials.
期刊介绍:
Refractories and Industrial Ceramics publishes peer-reviewed articles on the latest developments and discoveries in the field of refractory materials and ceramics, focusing on the practical aspects of their production and use.
Topics covered include:
Scientific Research;
Raw Materials;
Production;
Equipment;
Heat Engineering;
Applications.