PDF
Full
Outline
Composite materials used in engineering design often exhibit different properties in tension and compression in addition to anisotropy. The tensile and compressive anisotropy of constitutive behavior can affect the stress and strain distribution of composite structures under operating conditions, further consideration of the difference between tension strength and compression strength may have an impact on the strength analysis results of the structure. This article takes the carbon-carbon composite material air rudder shaft as the research object, implements secondary development through ABAQUS' USDFLD interface, compares and analyzes the changes in rudder shaft stress before and after considering tensile and compressive anisotropy. Then, considering the tensile, compressive and in-plane shear strength of the material, corresponding stiffness reduction models are introduced to analyze the failure process of the rudder shaft under bending and shear loads. The analysis results indicate that different properties in tension and compression will have a significant impact on the stress distribution of composite structures, and this analysis method can achieve more accurate simulation of the failure process of the rudder shaft.
PDF
388
173
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
