Study of the stress state of polycarbonate monolithic sheets using optical-polarization methods
Objectives. The study assessed the possibility of using optical-polarization methods to test quantitatively the stress state and residual stress in polycarbonate (PC) monolithic sheets. This stress is the leading cause of the cracking of PC sheets and the products made of them.Methods. The objects w...
| Main Authors: | , |
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| Format: | Article |
| Language: | Russian |
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MIREA - Russian Technological University
2022-04-01
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| Series: | Тонкие химические технологии |
| Subjects: | |
| Online Access: | https://www.finechem-mirea.ru/jour/article/view/1800 |
| _version_ | 1797881963969773568 |
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| author | A. V. Markov V. A. Lobanov |
| author_facet | A. V. Markov V. A. Lobanov |
| author_sort | A. V. Markov |
| collection | DOAJ |
| description | Objectives. The study assessed the possibility of using optical-polarization methods to test quantitatively the stress state and residual stress in polycarbonate (PC) monolithic sheets. This stress is the leading cause of the cracking of PC sheets and the products made of them.Methods. The objects were samples of monolithic PC sheets made by various manufacturers (Monogal and Novattro). The birefringence method was used to study the stress state of the samples, and the interference images obtained in polarized light in crossed polaroids were analyzed.Results. The efficiency of optical-polarization research methods, such as the birefringence and the analysis of the interference images of stretched PC samples combined into an additive spectrum, was shown. The residual stress in the monolithic PC sheets made by various manufacturers was estimated.Conclusions. The quantitative relationship between the stress acting on the PC samples, their birefringence, and the characteristics of their additive spectrum of interference images of stressed samples obtained in polarized light in crossed polaroids was established. The possibility of a quantitative assessment of the residual stress in monolithic PC sheets based on an analysis of their additive spectrum of interference images was shown. The measured residual stress did not exceed 1 MPa. |
| first_indexed | 2024-04-10T03:28:24Z |
| format | Article |
| id | doaj.art-34ae495947784aa7b2f1d82932f880c1 |
| institution | Directory Open Access Journal |
| issn | 2410-6593 2686-7575 |
| language | Russian |
| last_indexed | 2024-04-10T03:28:24Z |
| publishDate | 2022-04-01 |
| publisher | MIREA - Russian Technological University |
| record_format | Article |
| series | Тонкие химические технологии |
| spelling | doaj.art-34ae495947784aa7b2f1d82932f880c12023-03-13T07:25:40ZrusMIREA - Russian Technological UniversityТонкие химические технологии2410-65932686-75752022-04-01171657510.32362/2410-6593-2022-17-1-65-751669Study of the stress state of polycarbonate monolithic sheets using optical-polarization methodsA. V. Markov0V. A. Lobanov1MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)Objectives. The study assessed the possibility of using optical-polarization methods to test quantitatively the stress state and residual stress in polycarbonate (PC) monolithic sheets. This stress is the leading cause of the cracking of PC sheets and the products made of them.Methods. The objects were samples of monolithic PC sheets made by various manufacturers (Monogal and Novattro). The birefringence method was used to study the stress state of the samples, and the interference images obtained in polarized light in crossed polaroids were analyzed.Results. The efficiency of optical-polarization research methods, such as the birefringence and the analysis of the interference images of stretched PC samples combined into an additive spectrum, was shown. The residual stress in the monolithic PC sheets made by various manufacturers was estimated.Conclusions. The quantitative relationship between the stress acting on the PC samples, their birefringence, and the characteristics of their additive spectrum of interference images of stressed samples obtained in polarized light in crossed polaroids was established. The possibility of a quantitative assessment of the residual stress in monolithic PC sheets based on an analysis of their additive spectrum of interference images was shown. The measured residual stress did not exceed 1 MPa.https://www.finechem-mirea.ru/jour/article/view/1800monolithic polycarbonate sheetsstretchingresidual stresscrack resistancebirefringenceinterference image |
| spellingShingle | A. V. Markov V. A. Lobanov Study of the stress state of polycarbonate monolithic sheets using optical-polarization methods Тонкие химические технологии monolithic polycarbonate sheets stretching residual stress crack resistance birefringence interference image |
| title | Study of the stress state of polycarbonate monolithic sheets using optical-polarization methods |
| title_full | Study of the stress state of polycarbonate monolithic sheets using optical-polarization methods |
| title_fullStr | Study of the stress state of polycarbonate monolithic sheets using optical-polarization methods |
| title_full_unstemmed | Study of the stress state of polycarbonate monolithic sheets using optical-polarization methods |
| title_short | Study of the stress state of polycarbonate monolithic sheets using optical-polarization methods |
| title_sort | study of the stress state of polycarbonate monolithic sheets using optical polarization methods |
| topic | monolithic polycarbonate sheets stretching residual stress crack resistance birefringence interference image |
| url | https://www.finechem-mirea.ru/jour/article/view/1800 |
| work_keys_str_mv | AT avmarkov studyofthestressstateofpolycarbonatemonolithicsheetsusingopticalpolarizationmethods AT valobanov studyofthestressstateofpolycarbonatemonolithicsheetsusingopticalpolarizationmethods |