| Инд. авторы: | Eremin N.V., Moskvichev V.V. |
| Заглавие: | A probabilistic model of fracture of the composite material of a composite overwrapped pressure vessel |
| Библ. ссылка: | Eremin N.V., Moskvichev V.V. A probabilistic model of fracture of the composite material of a composite overwrapped pressure vessel // Journal of Physics: Conference Series. - 2020. - Vol.1431. - Iss. 1. - Art.012020. - ISSN 1742-6588. - EISSN 1742-6596. |
| Внешние системы: | DOI: 10.1088/1742-6596/1431/1/012020; РИНЦ: 43260216; SCOPUS: 2-s2.0-85079053804; |
| Реферат: | eng: A probabilistic numerical model for fracture of unidirectional composite materials is developed. The algorithm for numerical simulation of the model takes into account the random distribution of carbon fibers, the spread of mechanical properties and the fracture of the structural elements of the material. Multivariate numerical experiments of the composite material of a composite overwrapped pressure vessel under tensile loads were carried out. The analysis of the patterns of deformation and fracture of a composite material is carried out. The physical mechanism of deformation and fracture of a composite material corresponds to a numerical model. The stress-strain curves of a numerical model of a composite material at 70% carbon fiber content are presented. The calculated values of Young's modulus and tensile strength of the composite material at different percentages are obtained. A comparative analysis of experimental and numerical results showed that the results corresponded to 15%. Using of a numerical model of deformation and fracture of unidirectional composite materials makes it possible to track the mechanics of the processes of fracture of fibers and matrix, to obtain the most accurate analysis of the stress-strain state, and to develop generalized methods for calculating the strength of composite overwrapped pressure vessels © Published under licence by IOP Publishing Ltd. |
| Ключевые слова: | Numerical models; Unidirectional composite material; Structural elements; Stress strain state; Probabilistic modeling; Numerical experiments; Deformation and fracture; Composite overwrapped pressure vessels; Comparative analysis; Tensile strength; Carbon fibers; Strength of materials; Pressure vessels; Numerical methods; Nanostructured materials; Fracture mechanics; Fracture; Elastic moduli; Deformation; Composite materials; Stress-strain curves; |
| Издано: | 2020 |
| Физ. характеристика: | 012020 |
| Конференция: | Название: 8th International Conference on Deformation and Fracture of Materials and Nanomaterials Аббревиатура: DFMN 2019 Город: Moscow Страна: Russian Federation Даты проведения: 2019-11-19 - 2019-11-22 |