PSI - Issue 50

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000

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ScienceDirect

Procedia Structural Integrity 50 (2023) 320–326

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers Abstract The presented study uses the mathematical theory of growing bodies to describe from the view point of continuum mechanics the processes of consecutive construction of large-sized arched structures based on flat foundations with taking into account the synchronous gravity action on the structure and to detect some ways of possible technological controlling these structures stress strain state by a proper choice of the pace of structural material elements layerwise adding and of the values of pre-stretching stresses being set in the material elements. The structure material is implied to have rheological properties of creeping and aging what is decisively for the adoption of mentioned influence factors in control problems under consideration. The results of numeral calculations are given for specific material and process characteristics to illustrate the examples of successful stress controlling in thin-walled structures being constructed. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers Keywords: layerwise construction of large-sized structures; mechanics of growing bodies; mechanical properties of creeping and aging; technological stress controlling; construction pace regulated changing; pre-stretching stress setting. 16th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (MRDMS 2022) Problems on Controlling the Stress State of Large-Sized Structures Being Consecutively Constructed of Materials with Rheological Properties Dmitry Parshin a, * a Ishlinsky Institute for Problems in Mechanics RAS, Vernadskogo Ave 101 Bldg 1, Moscow 119526, Russia Abstract The presented study uses the mathematical theory of growing bodies to describe from the view point of continuum mechanics the processes of consecutive construction of large-sized arched structures based on flat foundations with taking into account the synchronous gravity action on the structure and to detect some ways of possible technological controlling these structures stress strain state by a proper choice of the pace of structural material elements layerwise adding and of the values of pre-stretching stresses being set in the material elements. The structure material is implied to have rheological properties of creeping and aging what is decisively for the adoption of mentioned influence factors in control problems under consideration. The results of numeral calculations are given for specific material and process characteristics to illustrate the examples of successful stress controlling in thin-walled structures being constructed. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers Keywords: layerwise construction of large-sized structures; mechanics of growing bodies; mechanical properties of creeping and aging; technological stress controlling; construction pace regulated changing; pre-stretching stress setting. 16th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (MRDMS 2022) Problems on Controlling the Stress State of Large-Sized Structures Being Consecutively Constructed of Materials with Rheological Properties Dmitry Parshin a, * a Ishlinsky Institute for Problems in Mechanics RAS, Vernadskogo Ave 101 Bldg 1, Moscow 119526, Russia

* Corresponding author. Tel.: +7-495-434-0017; fax: +7-499-739-9531. E-mail address: parshin@ipmnet.ru * Corresponding author. Tel.: +7-495-434-0017; fax: +7-499-739-9531. E-mail address: parshin@ipmnet.ru

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers 2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers 10.1016/j.prostr.2023.10.057