使用前向欧拉方案对激光定向能沉积进行高效热建模：方法、优点和局限性

IF 3.5 3区工程技术 Q1 MATHEMATICS, APPLIED

Finite Elements in Analysis and Design Pub Date : 2024-10-21 DOI:10.1016/j.finel.2024.104270

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引用次数: 0

摘要

本文探讨了基于中尺度传导的金属材料激光直接能量沉积（LDED）建模。我们使用两个经过实验验证的模拟，对前向（显式）欧拉时间积分策略和后向欧拉（隐式）方案进行了基准测试。结果表明，显式方案的计算速度更快。此外，我们还发现了该方案在增材制造中应用时以前被忽视的缺陷。不过，我们也证明了它在应用于 LDED 时遇到的限制，并强调了对更稳定的显式方案的需求。

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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Efficient thermal modeling of laser directed energy deposition using the forward Euler scheme: Methodology, merits and limitations

This paper explores mesoscale conduction-based modeling of Laser Directed Energy Deposition (LDED) for metallic materials. We benchmark the forward Euler (explicit) time integration strategy against the backward Euler (implicit) scheme using two experimentally validated simulations. Our results demonstrate the explicit scheme’s faster computational speed. Additionally, we identify previously overlooked flaws associated with its application in additive manufacturing. However, we also demonstrate that it encounters limitations when applied to LDED and highlight the need for a more stable explicit scheme.

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来源期刊

Finite Elements in Analysis and Design 工程技术-力学

CiteScore

4.80

自引率

3.20%

发文量

审稿时长

27 days

期刊介绍： The aim of this journal is to provide ideas and information involving the use of the finite element method and its variants, both in scientific inquiry and in professional practice. The scope is intentionally broad, encompassing use of the finite element method in engineering as well as the pure and applied sciences. The emphasis of the journal will be the development and use of numerical procedures to solve practical problems, although contributions relating to the mathematical and theoretical foundations and computer implementation of numerical methods are likewise welcomed. Review articles presenting unbiased and comprehensive reviews of state-of-the-art topics will also be accommodated.