Dimensionally stable laminates under thermal loading and their applications
There exist many types of structures, which are required to have stable dimensions within a wide range of temperatures. The specific nature of composites allows finding special conditions when a laminate stacking sequence can provide zero thermal expansion coefficients in one or more directions. Thi...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2019-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2019/53/matecconf_easn2019_01001.pdf |
| _version_ | 1818657889631338496 |
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| author | Symonov Volodymyr |
| author_facet | Symonov Volodymyr |
| author_sort | Symonov Volodymyr |
| collection | DOAJ |
| description | There exist many types of structures, which are required to have stable dimensions within a wide range of temperatures. The specific nature of composites allows finding special conditions when a laminate stacking sequence can provide zero thermal expansion coefficients in one or more directions. This allows the structure being designed to have the same dimensions in a wide range of temperatures. This work is aimed to find mathematical conditions, which guarantee in-plane zero CTE at least in one direction. As an application of thermally stable laminates a rotating disk is chosen. The mathematical model for such a disk is presented. Among investigated materials there was not found any of them, which can be used to layup a laminate with zero CTEs in two directions. However, all investigated materials can be used to layup many laminates with zero CTE in one or another direction. Moreover, it was discovered a laminate might have a zero CTE, if the lamina has zero or negative CTE at least in one direction. It was found the stresses, which appear in a laminated disk caused by centripetal forces, are insignificantly low in comparison to the thermal ones within the investigated ranges of angular velocity and temperature. |
| first_indexed | 2024-12-17T03:48:39Z |
| format | Article |
| id | doaj.art-83aae32ccf9e4852a9298a565f7fe317 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-17T03:48:39Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-83aae32ccf9e4852a9298a565f7fe3172022-12-21T22:04:50ZengEDP SciencesMATEC Web of Conferences2261-236X2019-01-013040100110.1051/matecconf/201930401001matecconf_easn2019_01001Dimensionally stable laminates under thermal loading and their applicationsSymonov VolodymyrThere exist many types of structures, which are required to have stable dimensions within a wide range of temperatures. The specific nature of composites allows finding special conditions when a laminate stacking sequence can provide zero thermal expansion coefficients in one or more directions. This allows the structure being designed to have the same dimensions in a wide range of temperatures. This work is aimed to find mathematical conditions, which guarantee in-plane zero CTE at least in one direction. As an application of thermally stable laminates a rotating disk is chosen. The mathematical model for such a disk is presented. Among investigated materials there was not found any of them, which can be used to layup a laminate with zero CTEs in two directions. However, all investigated materials can be used to layup many laminates with zero CTE in one or another direction. Moreover, it was discovered a laminate might have a zero CTE, if the lamina has zero or negative CTE at least in one direction. It was found the stresses, which appear in a laminated disk caused by centripetal forces, are insignificantly low in comparison to the thermal ones within the investigated ranges of angular velocity and temperature.https://www.matec-conferences.org/articles/matecconf/pdf/2019/53/matecconf_easn2019_01001.pdf |
| spellingShingle | Symonov Volodymyr Dimensionally stable laminates under thermal loading and their applications MATEC Web of Conferences |
| title | Dimensionally stable laminates under thermal loading and their applications |
| title_full | Dimensionally stable laminates under thermal loading and their applications |
| title_fullStr | Dimensionally stable laminates under thermal loading and their applications |
| title_full_unstemmed | Dimensionally stable laminates under thermal loading and their applications |
| title_short | Dimensionally stable laminates under thermal loading and their applications |
| title_sort | dimensionally stable laminates under thermal loading and their applications |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2019/53/matecconf_easn2019_01001.pdf |
| work_keys_str_mv | AT symonovvolodymyr dimensionallystablelaminatesunderthermalloadingandtheirapplications |