Meta-Material Layout for the Blast Protection of Above-Ground Steel Pipes

IF 2.2 4区工程技术 Q3 ENGINEERING, GEOLOGICAL

Environmental geotechnics Pub Date : 2023-07-01 DOI:10.3390/geotechnics3030032

Miltiadis Kontogeorgos, C. Fuggini

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Abstract

The current study investigates the capacity of the proposed meta-material layout for the blast protection of above-ground steel pipes against explosions. The philosophy of the meta-material layout’s design is described adequately, and the 1D periodic structures’ theory is adopted for the analytical prediction of the layout’s band-gaps. The special characteristics of the blast loading are explained, and specific time-related parameters are calculated. The layout is tested numerically for nine explosion scenarios of various magnitude via the finite element program ABAQUS, and the CONWEP model is selected for the simulation of the explosions. The results demonstrate a significant reduction in the maximum displacements developed on the pipe’s spring line and crown within a blast loading. This study composes an extension of the author’s previous research on buried steel pipes and surface explosion, advancing now the applicability of the meta-material layouts for the cases of above-ground steel pipes towards explosions and blast hazards. The outer goal is the investigation and the further spreading of the beneficial exploitation of meta-materials concepts for the scope of the pipelines’ effective blast protection, readdressing that this way is a major hazard for this type of structure and a gap in the current literature.

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地上钢管防爆的超材料布置

目前的研究探讨了所提出的超材料布置对地上钢管爆炸防护的能力。充分描述了超材料布局的设计理念，并采用一维周期结构理论对布局的带隙进行了分析预测。解释了爆炸载荷的特殊特性，并计算了具体的时间参数。通过有限元程序ABAQUS对该布局进行了9种不同震级的爆炸场景的数值测试，并选择CONWEP模型进行了爆炸模拟。结果表明，在爆炸载荷下，管道弹簧线和顶部的最大位移显著减小。本研究是笔者对地埋钢管与地面爆炸研究的延伸，提出了超材料布局在地上钢管爆炸和爆炸危险情况下的适用性。外部目标是调查和进一步推广有效利用超材料概念的管道有效防爆范围，重新修正这种方式是这类结构的主要危害，也是当前文献中的空白。

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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来源期刊

Environmental geotechnics Environmental Science-Water Science and Technology

CiteScore

6.20

自引率

18.20%

发文量

期刊介绍： In 21st century living, engineers and researchers need to deal with growing problems related to climate change, oil and water storage, handling, storage and disposal of toxic and hazardous wastes, remediation of contaminated sites, sustainable development and energy derived from the ground. Environmental Geotechnics aims to disseminate knowledge and provides a fresh perspective regarding the basic concepts, theory, techniques and field applicability of innovative testing and analysis methodologies and engineering practices in geoenvironmental engineering. The journal''s Editor in Chief is a Member of the Committee on Publication Ethics. All relevant papers are carefully considered, vetted by a distinguished team of international experts and rapidly published. Full research papers, short communications and comprehensive review articles are published under the following broad subject categories: geochemistry and geohydrology, soil and rock physics, biological processes in soil, soil-atmosphere interaction, electrical, electromagnetic and thermal characteristics of porous media, waste management, utilization of wastes, multiphase science, landslide wasting, soil and water conservation, sensor development and applications, the impact of climatic changes on geoenvironmental, geothermal/ground-source energy, carbon sequestration, oil and gas extraction techniques, uncertainty, reliability and risk, monitoring and forensic geotechnics.