{"title":"球度对地壳应力-应变状态评价的影响","authors":"Y. Stefanov, R. Bakeev, V. Suvorov, E. Melnik","doi":"10.1063/1.5132215","DOIUrl":null,"url":null,"abstract":"The effect of sphericity on the stress-strain state of the Earth’s crust was evaluated by adapting a numerical algorithm for the solution of a 2D boundary value problem using a calculation scheme constructed for the Cartesian coordinate system. The considered problem describes the stress-strain state of a three-layer block model of the Earth’s crust and upper mantle along the Tarim–Altai profile with a length of 2500 km and a depth of 90 km. The solutions obtained with regard to sphericity and for a rectangular region were compared. The calculation results showed a very weak effect of sphericity on the resulting surface topography and intracrustal boundaries. However, there was a significant difference in the values of the stress-strain state parameters, which reached 10% or more in separate zones.The effect of sphericity on the stress-strain state of the Earth’s crust was evaluated by adapting a numerical algorithm for the solution of a 2D boundary value problem using a calculation scheme constructed for the Cartesian coordinate system. The considered problem describes the stress-strain state of a three-layer block model of the Earth’s crust and upper mantle along the Tarim–Altai profile with a length of 2500 km and a depth of 90 km. The solutions obtained with regard to sphericity and for a rectangular region were compared. The calculation results showed a very weak effect of sphericity on the resulting surface topography and intracrustal boundaries. However, there was a significant difference in the values of the stress-strain state parameters, which reached 10% or more in separate zones.","PeriodicalId":20637,"journal":{"name":"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019","volume":"1 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of sphericity on the evaluation of the stress-strain state in the earth’s crust\",\"authors\":\"Y. Stefanov, R. Bakeev, V. Suvorov, E. Melnik\",\"doi\":\"10.1063/1.5132215\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The effect of sphericity on the stress-strain state of the Earth’s crust was evaluated by adapting a numerical algorithm for the solution of a 2D boundary value problem using a calculation scheme constructed for the Cartesian coordinate system. The considered problem describes the stress-strain state of a three-layer block model of the Earth’s crust and upper mantle along the Tarim–Altai profile with a length of 2500 km and a depth of 90 km. The solutions obtained with regard to sphericity and for a rectangular region were compared. The calculation results showed a very weak effect of sphericity on the resulting surface topography and intracrustal boundaries. However, there was a significant difference in the values of the stress-strain state parameters, which reached 10% or more in separate zones.The effect of sphericity on the stress-strain state of the Earth’s crust was evaluated by adapting a numerical algorithm for the solution of a 2D boundary value problem using a calculation scheme constructed for the Cartesian coordinate system. The considered problem describes the stress-strain state of a three-layer block model of the Earth’s crust and upper mantle along the Tarim–Altai profile with a length of 2500 km and a depth of 90 km. The solutions obtained with regard to sphericity and for a rectangular region were compared. The calculation results showed a very weak effect of sphericity on the resulting surface topography and intracrustal boundaries. However, there was a significant difference in the values of the stress-strain state parameters, which reached 10% or more in separate zones.\",\"PeriodicalId\":20637,\"journal\":{\"name\":\"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-11-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1063/1.5132215\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/1.5132215","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of sphericity on the evaluation of the stress-strain state in the earth’s crust
The effect of sphericity on the stress-strain state of the Earth’s crust was evaluated by adapting a numerical algorithm for the solution of a 2D boundary value problem using a calculation scheme constructed for the Cartesian coordinate system. The considered problem describes the stress-strain state of a three-layer block model of the Earth’s crust and upper mantle along the Tarim–Altai profile with a length of 2500 km and a depth of 90 km. The solutions obtained with regard to sphericity and for a rectangular region were compared. The calculation results showed a very weak effect of sphericity on the resulting surface topography and intracrustal boundaries. However, there was a significant difference in the values of the stress-strain state parameters, which reached 10% or more in separate zones.The effect of sphericity on the stress-strain state of the Earth’s crust was evaluated by adapting a numerical algorithm for the solution of a 2D boundary value problem using a calculation scheme constructed for the Cartesian coordinate system. The considered problem describes the stress-strain state of a three-layer block model of the Earth’s crust and upper mantle along the Tarim–Altai profile with a length of 2500 km and a depth of 90 km. The solutions obtained with regard to sphericity and for a rectangular region were compared. The calculation results showed a very weak effect of sphericity on the resulting surface topography and intracrustal boundaries. However, there was a significant difference in the values of the stress-strain state parameters, which reached 10% or more in separate zones.