7075-T6高强铝合金方管轴心受压承载能力研究
为了研究7075-T6铝合金方管的轴心受压承载力,制作了9根试件进行轴心受压试验,得到了试件的极限承载力、破坏模式、荷载-轴向位移曲线。建立试件有限元模型,进行有限元数值分析,与试验数据对比,论证有限元数值分析的有效性。采用有限元数值分析进行参数化分析,提出了适用于7075-T6铝合金方管的<italic>φ</italic>-<inline-formula><alternatives><math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1&quo...
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Editorial Department of Progress in Steel Building Structures, Tongji University
2024-01-01
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Series: | Jianzhu Gangjiegou Jinzhan |
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Online Access: | http://steelpro.tongji.edu.cn/thesisDetails?columnId=67543141&Fpath=home&index=0 |
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author | 刘均利 黎海霖 安永昌 杜熙 吕涛 项光韬 |
author_facet | 刘均利 黎海霖 安永昌 杜熙 吕涛 项光韬 |
author_sort | 刘均利 |
collection | DOAJ |
description | 为了研究7075-T6铝合金方管的轴心受压承载力,制作了9根试件进行轴心受压试验,得到了试件的极限承载力、破坏模式、荷载-轴向位移曲线。建立试件有限元模型,进行有限元数值分析,与试验数据对比,论证有限元数值分析的有效性。采用有限元数值分析进行参数化分析,提出了适用于7075-T6铝合金方管的<italic>φ</italic>-<inline-formula><alternatives><math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mover accent="true"><mi>λ</mi><mo>¯</mo></mover></math><graphic specific-use="big" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="alternativeImage/5EFA0960-5C81-48f2-B739-0007E35FBC91-M001.jpg"><?fx-imagestate width="1.52400005" height="2.79399991"?></graphic><graphic specific-use="small" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="alternativeImage/5EFA0960-5C81-48f2-B739-0007E35FBC91-M001c.jpg"><?fx-imagestate width="1.52400005" height="2.79399991"?></graphic></alternatives></inline-formula>曲线。讨论了随相对长细比变化时,局部屈曲对承载力的影响。结果表明,7075-T6铝合金方管具有一定的延性;建立的有限元可以精确模拟试件加载的全过程以及极限承载力;文中提出的<italic>φ</italic>-<inline-formula><alternatives><math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mover accent="true"><mi>λ</mi><mo>¯</mo></mover></math><graphic specific-use="big" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="alternativeImage/5EFA0960-5C81-48f2-B739-0007E35FBC91-M001.jpg"><?fx-imagestate width="1.52400005" height="2.79399991"?></graphic><graphic specific-use="small" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="alternativeImage/5EFA0960-5C81-48f2-B739-0007E35FBC91-M001c.jpg"><?fx-imagestate width="1.52400005" height="2.79399991"?></graphic></alternatives></inline-formula>曲线准确性比弱硬化曲线更好;对于同种截面,不同相对长细比的构件,局部初始几何缺陷对于构件极限承载力的影响是不同的。 |
format | Article |
id | doaj-art-d88269a21b5c4da7934b49a134094cb6 |
institution | Kabale University |
issn | 1671-9379 |
language | zho |
publishDate | 2024-01-01 |
publisher | Editorial Department of Progress in Steel Building Structures, Tongji University |
record_format | Article |
series | Jianzhu Gangjiegou Jinzhan |
spelling | doaj-art-d88269a21b5c4da7934b49a134094cb62025-01-15T03:22:37ZzhoEditorial Department of Progress in Steel Building Structures, Tongji UniversityJianzhu Gangjiegou Jinzhan1671-93792024-01-0119675431417075-T6高强铝合金方管轴心受压承载能力研究刘均利黎海霖安永昌杜熙吕涛项光韬为了研究7075-T6铝合金方管的轴心受压承载力,制作了9根试件进行轴心受压试验,得到了试件的极限承载力、破坏模式、荷载-轴向位移曲线。建立试件有限元模型,进行有限元数值分析,与试验数据对比,论证有限元数值分析的有效性。采用有限元数值分析进行参数化分析,提出了适用于7075-T6铝合金方管的<italic>φ</italic>-<inline-formula><alternatives><math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mover accent="true"><mi>λ</mi><mo>¯</mo></mover></math><graphic specific-use="big" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="alternativeImage/5EFA0960-5C81-48f2-B739-0007E35FBC91-M001.jpg"><?fx-imagestate width="1.52400005" height="2.79399991"?></graphic><graphic specific-use="small" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="alternativeImage/5EFA0960-5C81-48f2-B739-0007E35FBC91-M001c.jpg"><?fx-imagestate width="1.52400005" height="2.79399991"?></graphic></alternatives></inline-formula>曲线。讨论了随相对长细比变化时,局部屈曲对承载力的影响。结果表明,7075-T6铝合金方管具有一定的延性;建立的有限元可以精确模拟试件加载的全过程以及极限承载力;文中提出的<italic>φ</italic>-<inline-formula><alternatives><math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mover accent="true"><mi>λ</mi><mo>¯</mo></mover></math><graphic specific-use="big" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="alternativeImage/5EFA0960-5C81-48f2-B739-0007E35FBC91-M001.jpg"><?fx-imagestate width="1.52400005" height="2.79399991"?></graphic><graphic specific-use="small" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="alternativeImage/5EFA0960-5C81-48f2-B739-0007E35FBC91-M001c.jpg"><?fx-imagestate width="1.52400005" height="2.79399991"?></graphic></alternatives></inline-formula>曲线准确性比弱硬化曲线更好;对于同种截面,不同相对长细比的构件,局部初始几何缺陷对于构件极限承载力的影响是不同的。http://steelpro.tongji.edu.cn/thesisDetails?columnId=67543141&Fpath=home&index=07075-T6铝合金有限元分析整体失稳局部初始几何缺陷 |
spellingShingle | 刘均利 黎海霖 安永昌 杜熙 吕涛 项光韬 7075-T6高强铝合金方管轴心受压承载能力研究 Jianzhu Gangjiegou Jinzhan 7075-T6铝合金 有限元分析 整体失稳 局部初始几何缺陷 |
title | 7075-T6高强铝合金方管轴心受压承载能力研究 |
title_full | 7075-T6高强铝合金方管轴心受压承载能力研究 |
title_fullStr | 7075-T6高强铝合金方管轴心受压承载能力研究 |
title_full_unstemmed | 7075-T6高强铝合金方管轴心受压承载能力研究 |
title_short | 7075-T6高强铝合金方管轴心受压承载能力研究 |
title_sort | 7075 t6高强铝合金方管轴心受压承载能力研究 |
topic | 7075-T6铝合金 有限元分析 整体失稳 局部初始几何缺陷 |
url | http://steelpro.tongji.edu.cn/thesisDetails?columnId=67543141&Fpath=home&index=0 |
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