THE Ultimate Strength Analysis Method of Thin-Walled Beam Structures by Using of Rigid Body-Spring System Models
刚体-弹簧系统模型薄壁梁结构极限强度分析方法
基本信息
- 批准号:62550329
- 负责人:
- 金额:$ 0.96万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1987
- 资助国家:日本
- 起止时间:1987 至 1988
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
S discrete model which is useful for the thin-walled beam, is developed. By setting up the appropriate kinematic field which accounts for flexural-torsional phenomenon, the formulation required for the analysis is carried out for the model which consist of rigid beam element and spring systems.The following cases are analyzed numrically using the proposed model, that is thin-walled rigid element-spring systems, for the purpose of investigating the validity and the practicability of this method. (1) Elastic spatial behavior of thin-walled beams under bending and torsion. (2) Elastic flexural-torsional buckling of thin-walled beams under bending and axial force. (3) Ultimate behavior of thin-walled beam under bending and torsion. (4) Elasto-plastic lateral buckling of thin-walled beam under bending. (5) Large distortion problem such as post buckling behavior of beam-column.The numerical treatments are found to be satisfactory. By applying the method of analysis involving discretization, such as the one described, it is possible to treat problem such as inelastic buckling and post buckling behavior of the thin-walled members, as well as the ultimate strength analysis of thin- walled structures.
建立了适用于薄壁梁的离散模型。通过建立反映弯扭现象的运动学场,推导出由刚性梁单元和弹簧系统组成的模型所需的分析公式,并对薄壁刚性单元-弹簧系统进行了数值分析,以验证该方法的有效性和实用性。(1)弯扭作用下薄壁梁的弹性空间行为。(2)弯曲和轴向力作用下薄壁梁的弹性弯扭屈曲。(3)弯扭作用下薄壁梁的极限性能。(4)弯曲薄壁梁的弹塑性侧向屈曲。(5)大变形问题,如梁柱的后屈曲行为,数值处理结果令人满意。通过应用离散化分析方法,可以处理薄壁构件的非弹性屈曲和后屈曲行为,以及薄壁结构的极限强度分析。
项目成果
期刊论文数量(0)
专著数量(0)
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会议论文数量(0)
专利数量(0)
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FUKASAWA Yasuharu其他文献
FUKASAWA Yasuharu的其他文献
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{{ truncateString('FUKASAWA Yasuharu', 18)}}的其他基金
Study on the Analysis and Control Method of the Vibrations and Noises in Highway and Railway Bridges under the Passage of Vehicles
车辆通过的公铁桥梁振动与噪声分析与控制方法研究
- 批准号:
02650322 - 财政年份:1990
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
相似海外基金
Thin-walled beam applications for structural analysis software
结构分析软件的薄壁梁应用
- 批准号:
518163-2017 - 财政年份:2018
- 资助金额:
$ 0.96万 - 项目类别:
Collaborative Research and Development Grants