Computational adhesion - Numerical methods for adhesive contact problems at multiple length scales.

计算粘合力 - 多个长度尺度上粘合接触问题的数值方法。

• 批准号: 152381366
• 负责人: Professor Dr.-Ing. Roger A. Sauer
• 金额: --
• 依托单位: Department of Civil Engineering
• 依托单位国家: 德国
• 项目类别: Independent Junior Research Groups
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/152381366?language=en
• 关键词: Computational; adhesion; Numerical; methods; adhesive

The proposed research focuses on the development of 3D computational methods for adhesive contact on different length scales. To provide a general description and to capture large deformations due to strong adhesion, the contact modelling will be formulated in the framework of nonlinear conti-nuum mechanics. The goal is to develop accurate, efficient and robust contact algorithms to address various aspects of adhesion such as adhesion dynamics, coupled adhesion, frictional adhesion and multiscale modelling of adhesion. The developed adhesion models will be implemented within a nonli-near finite element approach and their behaviour will be analysed in detail. The complex adhesion mechanism of the gecko motivates this research and provides several open problems that will be studied here. In particular, a five-level multiscale model for gecko adhesion will be developed to investigate how adhesion can carry over from the molecular scale to the macroscopic scale. This research has many further applications and is expected to significantly advance the science and technology of adhesion.

拟议的研究重点是开发不同长度尺度上粘合接触的 3D 计算方法。为了提供一般描述并捕获由于强粘附而产生的大变形，将在非线性连续体力学的框架中制定接触建模。目标是开发准确、高效和稳健的接触算法来解决粘附的各个方面，例如粘附动力学、耦合粘附、摩擦粘附和粘附的多尺度建模。开发的粘附模型将在非线性有限元方法中实施，并将详细分析它们的行为。壁虎复杂的粘附机制激发了这项研究，并提供了几个将在此研究的开放性问题。特别是，将开发壁虎粘附的五级多尺度模型，以研究粘附如何从分子尺度转移到宏观尺度。这项研究有许多进一步的应用，预计将显着推动粘合科学和技术的发展。

项目成果

Three-dimensional isogeometrically enriched finite elements for frictional contact and mixed-mode debonding

• DOI: 10.1016/j.cma.2014.10.025
• 发表时间: 2015-02-01
• 期刊: COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
• 影响因子: 7.2
• 作者: Corbett, Callum J.;Sauer, Roger A.
• 通讯作者: Sauer, Roger A.

An unbiased computational contact formulation for 3D friction

• DOI: 10.1002/nme.4794
• 发表时间: 2015-01
• 期刊: International Journal for Numerical Methods in Engineering
• 影响因子: 2.9
• 作者: R. Sauer;Laura De Lorenzis-Laura-De Lorenzis-2159881221

Computational optimization of adhesive microstructures based on a nonlinear beam formulation

• DOI: 10.1007/s00158-014-1091-1
• 发表时间: 2014-06
• 期刊: Structural and Multidisciplinary Optimization
• 影响因子: 3.9
• 作者: Janine C. Mergel;R. Sauer;A. Saxena

NURBS-enriched contact finite elements

• DOI: 10.1016/j.cma.2014.02.019
• 发表时间: 2014-06-15
• 期刊: COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
• 影响因子: 7.2
• 作者: Corbett, Callum J.;Sauer, Roger A.
• 通讯作者: Sauer, Roger A.

A Survey of Computational Models for Adhesion

• DOI: 10.1080/00218464.2014.1003210
• 发表时间: 2016-02
• 期刊: The Journal of Adhesion
• 作者: R. Sauer