泡沫芯七层梁的弯曲

Q2 Engineering

Engineering Transactions Pub Date : 2018-07-26 DOI:10.24423/ENGTRANS.882.20180726

K. Magnucki, S. Milecki, J. Lewiński, P. Kȩdzia

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引用次数: 3

摘要

本文的研究对象是一种带有泡沫芯的七层梁。梁的结构是对称的。该梁由主芯、两个内板、两个次芯和两个外板组成。主芯和两个面芯是金属和聚氨酯泡沫，而板材是金属。建立了梁的解析模型。考虑梁的平截面变形的“z”形假设，给出了位移场和应变场的公式。基于稳态总势能，得到了七层梁的控制微分方程。详细研究了均匀分布荷载作用下梁的挠度和应力。分析了泡沫型芯对梁挠度和应力的影响。建立了梁的有限元数值模型。将解析解与数值计算- FEM研究(ABAQUS系统和SolidWorks仿真)进行了比较。分析结果以表格和图表的形式呈现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Bending of a Seven Layer Beam with Foam Cores

The subject of the paper is a seven layer beam with foam cores. The structure of the beam is symmetrical. The beam is composed of the main core, two inner sheets, two second cores and two outer sheets. The main core and two face cores are metal and polyurethane foams, while the sheets are metal. The analytical model of the beam is developed. The displacement and strain fields are formulated with consideration of the Zig-Zag hypothesis of deformation of a flat cross-section of the beam. The governing differential equations for the seven layer beam are obtained based on the stationary total potential energy. The detailed studies are devoted to deflections and stresses of the beams under a uniformly distributed load. The influence of the foam type of cores on the deflections and stresses of the beam is analysed. Moreover, the numerical FEM-model of the beam is developed. The analytical solution is compared to numerical calculations – FEM studies (ABAQUS System and SolidWorks Simulation). The results of the analysis are presented in Tables and Figures.

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来源期刊

Engineering Transactions Engineering-Engineering (all)

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： Engineering Transactions (formerly Rozprawy Inżynierskie) is a refereed international journal founded in 1952. The journal promotes research and practice in engineering science and provides a forum for interdisciplinary publications combining mechanics with: Material science, Mechatronics, Biomechanics and Biotechnologies, Environmental science, Photonics, Information technologies, Other engineering applications. The journal publishes original papers covering a broad area of research activities including: experimental and hybrid techniques, analytical and numerical approaches. Review articles and special issues are also welcome. Following long tradition, all articles are peer reviewed and our expert referees ensure that the papers accepted for publication comply with high scientific standards. Engineering Transactions is a quarterly journal intended to be interesting and useful for the researchers and practitioners in academic and industrial communities.