Enhancing non-metallic gasket performance with shape memory fibers

IF 3 2区工程技术 Q2 ENGINEERING, MECHANICAL International Journal of Pressure Vessels and Piping Pub Date : 2024-08-06 DOI:10.1016/j.ijpvp.2024.105288

Amin Ardali , Jafar Rouzegar , Soheil Mohammadi , Saeede Sharifnejad

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Abstract

This study aims to enhance the sealing performance of non-metallic gaskets by incorporating shape memory fibers. The analytical exploration focuses on analyzing the thermomechanical behavior of Nitinol fibers in their woven state within the gasket. Specifically, the investigation examines the variation of phase transformation zones across the wire cross-section with changes in temperature. Subsequently, a series of SMA fiber-reinforced gasket samples were fabricated, and experimental investigations were conducted to assess the impact of Nitinol fibers on composite gaskets using a helium gas leak test. The results demonstrate that the integration of shape memory alloy wires into the composition of gaskets can significantly improve their sealing performance. Moreover, this study examines a number of pivotal factors such as fiber volume fraction, temperature application, woven fiber arrangement, leakage rates, gasket deformation, contact stress, and structural bending. These comprehensive investigations may provide valuable insights into the efficacy of Nitinol fibers in enhancing gasket sealing performance.

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利用形状记忆纤维提高非金属垫圈性能

本研究旨在通过加入形状记忆纤维来提高非金属垫片的密封性能。分析探索的重点是分析镍钛诺纤维在垫片内编织状态下的热机械行为。具体来说，该研究考察了整个金属丝横截面上的相变区随温度变化而产生的变化。随后，制作了一系列 SMA 纤维增强垫片样品，并进行了实验研究，利用氦气泄漏测试评估镍钛诺纤维对复合垫片的影响。结果表明，在垫片成分中加入形状记忆合金丝可以显著提高垫片的密封性能。此外，这项研究还考察了纤维体积分数、温度应用、编织纤维排列、泄漏率、垫片变形、接触应力和结构弯曲等一系列关键因素。这些全面的研究可为了解镍钛诺纤维在提高垫片密封性能方面的功效提供有价值的见解。

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来源期刊

International Journal of Pressure Vessels and Piping 工程技术-工程：机械

CiteScore

5.30

自引率

13.30%

发文量

208

审稿时长

17 months

期刊介绍： Pressure vessel engineering technology is of importance in many branches of industry. This journal publishes the latest research results and related information on all its associated aspects, with particular emphasis on the structural integrity assessment, maintenance and life extension of pressurised process engineering plants. The anticipated coverage of the International Journal of Pressure Vessels and Piping ranges from simple mass-produced pressure vessels to large custom-built vessels and tanks. Pressure vessels technology is a developing field, and contributions on the following topics will therefore be welcome: • Pressure vessel engineering • Structural integrity assessment • Design methods • Codes and standards • Fabrication and welding • Materials properties requirements • Inspection and quality management • Maintenance and life extension • Ageing and environmental effects • Life management Of particular importance are papers covering aspects of significant practical application which could lead to major improvements in economy, reliability and useful life. While most accepted papers represent the results of original applied research, critical reviews of topical interest by world-leading experts will also appear from time to time. International Journal of Pressure Vessels and Piping is indispensable reading for engineering professionals involved in the energy, petrochemicals, process plant, transport, aerospace and related industries; for manufacturers of pressure vessels and ancillary equipment; and for academics pursuing research in these areas.