New biaxial experiments with flat metal specimens for development of damage and failure models

使用扁平金属样本进行新的双轴实验，用于开发损伤和失效模型

• 批准号: 281419279
• 负责人: Professor Dr.-Ing. Michael Brünig
• 金额: --
• 依托单位: Institut für Mechanik und Statik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/281419279?language=en
• 关键词: New; biaxial; experiments; flat; metal

Current developments in lightweight structural engineering require high demands on used materials. Therefore, detailed knowledge of their behavior is necessary to be able to numerically predict the safety of structural components or complex innovative lightweight structures. In this context, systematic investigations with repeatable experiments covering all relevant stress states are necessary. Thus, new experiments with flat biaxially loaded metal specimens will be developed to be able to detect different damage and failure mechanisms for a wide range of stress states up to final fracture. With corresponding numerical simulations it will be possible to modify a continuum damage and failure model to numerically analyze the deformation and failure behavior of ductile metals under generalized loading conditions. Main goal of this research project is to establish a set of biaxial experiments and corresponding specimens used for detection of failure mechanisms for different stress states in analysis of safety and service life prediction in practical disciplines like structural and aviation engineering or car industry.

当前轻质结构工程的发展对所用材料提出了很高的要求。因此，详细了解它们的行为是必要的，以便能够数值预测结构部件或复杂的创新轻质结构的安全性。在这种情况下，系统的调查与可重复的实验，涵盖所有相关的应力状态是必要的。因此，新的实验与平面双轴加载的金属试样将开发能够检测不同的损伤和故障机制的广泛的应力状态，直到最终断裂。通过相应的数值模拟，将有可能修改一个连续的损伤和破坏模型，数值分析广义载荷条件下的延性金属的变形和破坏行为。本研究项目的主要目标是建立一套双轴试验和相应的试样，用于检测不同应力状态下的失效机制，用于结构和航空工程或汽车工业等实际学科的安全分析和使用寿命预测。

项目成果

Biaxial experiments and numerical simulations on damage and fracture mechanisms in ductile metals at different loading conditions

不同载荷条件下延性金属损伤和断裂机制的双轴实验和数值模拟

• DOI: 10.1016/j.prostr.2016.06.388
• 发表时间: 2016
• 期刊: Procedia structural integrity
• 作者: M. Brünig;S. Gerke;M. Schmidt
• 通讯作者: M. Schmidt

Damage and Fracture of Ductile Sheet Metals: Experiments and Numerical Simulations with New Biaxial Specimens

延性金属板材的损伤和断裂：新型双轴样品的实验和数值模拟

• DOI: 10.1007/978-3-319-70563-7_5
• 发表时间: 2018
• 作者: S. Gerke;M. Schmidt;M. Dirian;M. Brünig
• 通讯作者: M. Brünig

Biaxial experiments and numerical analyses on damage prediction in metal forming processes

金属成形过程损伤预测的双轴实验和数值分析

• DOI: 10.1051/matecconf/20168003001
• 发表时间: 2016
• 作者: M. Brünig;S. Gerke;M. Schmidt
• 通讯作者: M. Schmidt

Experiments and numerical simulation of stress-state-dependent damage in sheet metal forming

板料成形中应力状态相关损伤的实验和数值模拟

• DOI: 10.1088/1742-6596/896/1/012077
• 发表时间: 2017
• 期刊: Journal of Physics: Conference Series
• 作者: M. Brünig;S. Gerke;M. Schmidt
• 通讯作者: M. Schmidt

A fracture criterion for ductile metals based on critical damage parameters

基于临界损伤参数的延性金属断裂准则

• DOI: 10.1007/s00161-020-00944-7
• 发表时间: 2021
• 期刊: Continuum Mechanics and Thermodynamics
• 影响因子: 2.6
• 作者: M. Brünig;M. Schmidt;S. Gerke
• 通讯作者: S. Gerke