Experimental and numerical investigations of steel coped beam using DIC method

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL Journal of Mechanical Science and Technology Pub Date : 2024-08-02 DOI:10.1007/s12206-024-0712-x

S. Chandrasekaran, M. Thennavan, Phimpisan Phaireepinas

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Abstract

Steel-coped beams are used in industrial structures to accommodate a cluster of water mains, fire hydrants, power cables and telecommunication wires. The coped regions restrict the ultimate capacity and cause unfavorable failure modes. The current study investigates the structural assessment of the coped section in offshore topsides while their use enhances operational safety for drilling and production. The structural evaluation is done through 2D digital image correlation (DIC) experiments to quantify the influence of various cope geometries. The DIC technique illustrated the strain and deformation measurements under different loading conditions for different coped geometry. The primary failure mode observed in local web buckling is characterized by noticeable lateral displacement and the development of buckling lines over the coped web. Studies showed the influence of the cope depth on the load-carrying capacity and buckling processes for different cope geometries. The results of the DIC analysis are strongly aligned with experimental data and finite element numerical results, suggesting this technique to the structural assessment of coped section.

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使用 DIC 方法对钢制连梁进行实验和数值研究

在工业结构中，钢盖梁用于容纳水管、消防栓、电力电缆和电信线缆。加盖区域限制了极限承载能力，并导致不利的失效模式。当前的研究调查了海上上部结构中拱起部分的结构评估，而拱起部分的使用提高了钻井和生产的操作安全性。结构评估是通过二维数字图像相关（DIC）实验来量化各种坡口几何形状的影响。DIC 技术显示了在不同加载条件下对不同盖板几何形状的应变和变形测量结果。在局部腹板屈曲中观察到的主要失效模式表现为明显的横向位移和腹板上屈曲线的发展。研究表明，对于不同几何形状的锥齿轮，锥齿轮深度对承载能力和屈曲过程都有影响。DIC 分析的结果与实验数据和有限元数值结果非常吻合，这表明该技术适用于对拱形截面进行结构评估。

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来源期刊

Journal of Mechanical Science and Technology 工程技术-工程：机械

CiteScore

2.90

自引率

6.20%

发文量

517

审稿时长

7.7 months

期刊介绍： The aim of the Journal of Mechanical Science and Technology is to provide an international forum for the publication and dissemination of original work that contributes to the understanding of the main and related disciplines of mechanical engineering, either empirical or theoretical. The Journal covers the whole spectrum of mechanical engineering, which includes, but is not limited to, Materials and Design Engineering, Production Engineering and Fusion Technology, Dynamics, Vibration and Control, Thermal Engineering and Fluids Engineering. Manuscripts may fall into several categories including full articles, solicited reviews or commentary, and unsolicited reviews or commentary related to the core of mechanical engineering.