Feasibility study of shell element-based elastic FE approach for welding-induced thermal distortion prediction in HDPE welded structures

IF 2.3 3区工程技术 Q2 ENGINEERING, MARINE

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI:10.1016/j.ijnaoe.2023.100559

Jae-Min Lee

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引用次数: 0

Abstract

High-density polyethylene (HDPE) is considered an eco-friendly material for boat construction worldwide. However, managing thermal distortion in HDPE welding is challenging, impacting productivity. Traditional steel shipbuilding has established methods to predict welding-induced thermal distortion, but HDPE lacks comprehensive studies and standards. This research explores applying the elastic Finite Element (FE) approach, commonly used in steel structures, to HDPE welding. The elastic FE approach simplifies complex welding simulations, enabling its use in large structures like ship hulls. Our research assesses whether HDPE welded specimens exhibit similar distortion patterns to conventional welded structures and whether consistent parameters yield similar thermal distortion. Alignment between our FE analysis, based on specimen data, and experimental results validates the feasibility of using the elastic FE approach to predict HDPE thermal distortion. This study suggests it as a practical method to enhance HDPE boat manufacturing productivity.

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基于壳单元的弹性有限元法预测HDPE焊接结构焊接热变形的可行性研究

高密度聚乙烯(HDPE)在世界范围内被认为是一种环保的造船材料。然而，管理HDPE焊接中的热变形是具有挑战性的，会影响生产率。传统的钢结构造船已经建立了预测焊接引起的热变形的方法，但HDPE缺乏全面的研究和标准。本研究探索将弹性有限元(FE)方法应用于HDPE焊接，这种方法通常用于钢结构。弹性有限元方法简化了复杂的焊接模拟，使其能够用于船体等大型结构。我们的研究评估了HDPE焊接试样是否表现出与传统焊接结构相似的变形模式，以及是否一致的参数产生类似的热变形。基于试样数据的有限元分析与实验结果之间的一致性验证了使用弹性有限元方法预测HDPE热变形的可行性。研究结果表明，这是一种切实可行的提高HDPE船艇生产效率的方法。

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来源期刊

International Journal of Naval Architecture and Ocean Engineering ENGINEERING, MARINE-

CiteScore

4.90

自引率

4.50%

发文量

审稿时长

12 months

期刊介绍： International Journal of Naval Architecture and Ocean Engineering provides a forum for engineers and scientists from a wide range of disciplines to present and discuss various phenomena in the utilization and preservation of ocean environment. Without being limited by the traditional categorization, it is encouraged to present advanced technology development and scientific research, as long as they are aimed for more and better human engagement with ocean environment. Topics include, but not limited to: marine hydrodynamics; structural mechanics; marine propulsion system; design methodology & practice; production technology; system dynamics & control; marine equipment technology; materials science; underwater acoustics; ocean remote sensing; and information technology related to ship and marine systems; ocean energy systems; marine environmental engineering; maritime safety engineering; polar & arctic engineering; coastal & port engineering; subsea engineering; and specialized watercraft engineering.