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arXiv 2602.01358cond-mat.mtrl-scics.AIcs.SE
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迈向基于知识的工作流:一种语义方法用于机械和热力学性质的原子模拟

Towards knowledge-based workflows: a semantic approach to atomistic simulations for mechanical and thermodynamic properties

Institute for Advanced Simulations – Materials Data Science and Informatics (IAS‑9)(先进模拟研究所——材料数据科学与信息学研究所);Forschungszentrum Jülich GmbH(吕贝克研究所);Institute of Metallurgy - Chair of Computational Material Sciences/Engineering(冶金研究所——计算材料科学与工程教授席位);Technical University of Clausthal(克莱斯特哈尔技术大学);Interdisciplinary Centre for Advanced Materials Simulation (ICAMS)(先进材料模拟跨学科中心);Ruhr-Universität Bochum(博德姆鲁尔-大学);Bundesanstalt für Materialforschung und -prüfung(联邦材料研究所)

Abril Azocar Guzman, Hoang-Thien Luu, Sarath Menon, Tilmann Hickel, Nina Merkert, Stefan Sandfeld

AI总结:

本文提出了一种基于语义的方法,通过可重用的原子工作流来模拟机械和热力学性质,该方法整合了与应用本体对齐的元数据注释,从而实现自动溯源和符合FAIR原则的数据输出,展示了工作流在结构-性质关系验证中的有效性,如Hall-Petch效应,并展示了其在不同原子势能和材料中的可重用性。

摘要:

机械和热力学性质,包括晶体缺陷的影响,对于评估工程应用中的材料至关重要。分子动力学模拟在原子尺度上提供了这些机制的有价值见解。然而,当前的做法通常依赖于碎片化的脚本,具有不一致的元数据和有限的溯源性,这阻碍了可重复性、互操作性和重用性。FAIR数据原则和基于工作流的方法为解决这些限制提供了路径。我们提出了可重用的原子工作流,这些工作流整合了与应用本体对齐的元数据注释,从而实现自动溯源和符合FAIR原则的数据输出。这些工作流涵盖了关键的机械和热力学量,包括状态方程、弹性张量、机械加载、热性质、缺陷形成能和纳米压痕。我们展示了结构-性质关系的验证,如Hall-Petch效应,并表明这些工作流可以在不同的原子势能和材料之间在一致的语义框架内重用。该方法提供了AI准备的模拟数据,支持新兴的代理AI工作流,并建立了一个通用的知识驱动机械和热力学模拟的蓝图。

英文摘要:

Mechanical and thermodynamic properties, including the influence of crystal defects, are critical for evaluating materials in engineering applications. Molecular dynamics simulations provide valuable insight into these mechanisms at the atomic scale. However, current practice often relies on fragmented scripts with inconsistent metadata and limited provenance, which hinders reproducibility, interoperability, and reuse. FAIR data principles and workflow-based approaches offer a path to address these limitations. We present reusable atomistic workflows that incorporate metadata annotation aligned with application ontologies, enabling automatic provenance capture and FAIR-compliant data outputs. The workflows cover key mechanical and thermodynamic quantities, including equation of state, elastic tensors, mechanical loading, thermal properties, defect formation energies, and nanoindentation. We demonstrate validation of structure-property relations such as the Hall-Petch effect and show that the workflows can be reused across different interatomic potentials and materials within a coherent semantic framework. The approach provides AI-ready simulation data, supports emerging agentic AI workflows, and establishes a generalizable blueprint for knowledge-based mechanical and thermodynamic simulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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