用于软物质系统的通用材料模型子程序

IF 8.7 2区 工程技术 Q1 Mathematics
Mathias Peirlinck, Juan A. Hurtado, Manuel K. Rausch, Adrián Buganza Tepole, Ellen Kuhl
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引用次数: 0

摘要

软材料在现代生活的许多方面都发挥着不可或缺的作用,包括自主性、可持续性和人类健康,而对其进行精确建模对于了解其独特属性和功能至关重要。现今的有限元分析软件包带有一套预编程的材料模型,这些模型在捕捉这些材料复杂的机械行为方面可能会表现出有限的有效性。遗憾的是,在有限元分析软件包中加入修改过的或新颖的材料模型,需要张量代数、连续介质力学和计算机编程等方面的深厚知识,因此是一项容易出现人为错误的复杂任务。在这里,我们设计了一个通用材料子程序,它可以自动将复杂程度不同的新型结构模型集成到非线性有限元软件包中,而无需额外的分析推导和算法实现。我们通过各种软物质案例研究,展示了我们的方法在从材料点到结构层面无缝集成创新构造模型方面的多功能性:对大脑的正面撞击;头皮的重建手术;动脉和人体心脏的舒张负荷;以及三尖瓣的动态关闭。我们的通用材料子程序使所有用户,而不仅仅是专家,都能对软物质系统进行可靠的工程分析。我们设想,这个框架将成为整个软物质界持续创新和探索不可或缺的工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A universal material model subroutine for soft matter systems

A universal material model subroutine for soft matter systems

Soft materials play an integral part in many aspects of modern life including autonomy, sustainability, and human health, and their accurate modeling is critical to understand their unique properties and functions. Today’s finite element analysis packages come with a set of pre-programmed material models, which may exhibit restricted validity in capturing the intricate mechanical behavior of these materials. Regrettably, incorporating a modified or novel material model in a finite element analysis package requires non-trivial in-depth knowledge of tensor algebra, continuum mechanics, and computer programming, making it a complex task that is prone to human error. Here we design a universal material subroutine, which automates the integration of novel constitutive models of varying complexity in non-linear finite element packages, with no additional analytical derivations and algorithmic implementations. We demonstrate the versatility of our approach to seamlessly integrate innovative constitutive models from the material point to the structural level through a variety of soft matter case studies: a frontal impact to the brain; reconstructive surgery of the scalp; diastolic loading of arteries and the human heart; and the dynamic closing of the tricuspid valve. Our universal material subroutine empowers all users, not solely experts, to conduct reliable engineering analysis of soft matter systems. We envision that this framework will become an indispensable instrument for continued innovation and discovery within the soft matter community at large.

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来源期刊
Engineering with Computers
Engineering with Computers 工程技术-工程:机械
CiteScore
16.50
自引率
2.30%
发文量
203
审稿时长
9 months
期刊介绍: Engineering with Computers is an international journal dedicated to simulation-based engineering. It features original papers and comprehensive reviews on technologies supporting simulation-based engineering, along with demonstrations of operational simulation-based engineering systems. The journal covers various technical areas such as adaptive simulation techniques, engineering databases, CAD geometry integration, mesh generation, parallel simulation methods, simulation frameworks, user interface technologies, and visualization techniques. It also encompasses a wide range of application areas where engineering technologies are applied, spanning from automotive industry applications to medical device design.
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