先进数值材料模型在钢包罩热冲击模拟中的应用

IF 4.7 2区工程技术 Q1 MECHANICS

Engineering Fracture Mechanics Pub Date : 2025-06-17 DOI:10.1016/j.engfracmech.2025.111338

Zain Ali , Dietmar Gruber

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引用次数: 0

摘要

本文研究了三种不同的数值模型（局部梯度增强损伤模型（LGED）、相场内聚区模型（PF-CZM）和混凝土损伤塑性模型（CDP））来模拟钢包包盖的热力学行为。钢包护罩在炼钢中是必不可少的，在极端条件下确保钢水在转移过程中的纯度。由于蠕变是一个决定性的因素，因此采用Norton-Bailey蠕变模型来捕捉随时间变化的高温非弹性变形。结果表明，PF-CZM和CDP模型具有较好的局部损伤预测效果，而LGED模型的裂缝范围较宽。蠕变降低了体系的弹性能，延缓了断裂。这些见解增强了对耐火材料行为的理解，指导优化钢包罩设计，以提高性能并降低炼钢成本。

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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Application of advanced numerical material models for the simulation of a thermal shock on a ladle shroud

This study investigates three different numerical models (Localizing Gradient-Enhanced Damage (LGED), Phase-Field Cohesive Zone Model (PF-CZM), and Concrete Damage Plasticity (CDP)) for the simulation of the thermo-mechanical behaviour of ladle shroud. Ladle shrouds are essential in steelmaking, ensuring molten steel purity during transfer under extreme conditions. Because creep is a decisive factor, the Norton-Bailey creep model is applied to capture time-dependent high-temperature inelastic deformation. Results reveal that PF-CZM and CDP models excel in localized damage prediction, while LGED produces unphysically wide fracture zones. Creep reduces elastic energy in the system, delaying fracture. These insights enhance understanding of refractory behaviour, guiding optimized ladle shroud design to improve performance and reduce steelmaking costs.

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来源期刊

Engineering Fracture Mechanics 物理-力学

CiteScore

8.70

自引率

13.00%

发文量

606

审稿时长

74 days

期刊介绍： EFM covers a broad range of topics in fracture mechanics to be of interest and use to both researchers and practitioners. Contributions are welcome which address the fracture behavior of conventional engineering material systems as well as newly emerging material systems. Contributions on developments in the areas of mechanics and materials science strongly related to fracture mechanics are also welcome. Papers on fatigue are welcome if they treat the fatigue process using the methods of fracture mechanics.