Micro-mechanical investigation of deformation and failure scenario in dual phase steel using experimental and numerical methods

使用实验和数值方法对双相钢变形和失效场景进行微观机械研究

• 批准号: 279289041
• 负责人: Dr.-Ing. Alexander Butz
• 金额: --
• 依托单位: Fraunhofer-Institut für Werkstoffmechanik (IWM)
• 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 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/279289041?language=en
• 关键词: Micro; mechanical; investigation; deformation; failure

The main goal of this project is to provide a realistic and general description of deformation and failure mechanisms for dual phase steels. Therefore different grades of dual phase steel, different loading conditions and different length scales with special focus on the microstructure level will be considered. The approach adopted in this project is characterized by a combination of experimental and numerical methods to predict the predominant failure mechanism depending on the microstructure and the stress state. Experimental methods will be used to analyse the failure mechanism and to provide data for validation and calibration of the numerical models. The simulation results offer additional information for extensive analysis of the complex interaction between the different phases on micro scale under consideration of different models to account for damage and failure. Further, the developed numerical models will be applied to perform different parametric studies.

该项目的主要目标是对双相钢的变形和失效机制提供一个真实和一般的描述。因此，将考虑不同牌号的双相钢、不同的加载条件和不同的长度尺度，并特别关注显微组织水平。该方案采用实验和数值相结合的方法，根据材料的微观结构和应力状态来预测主要的破坏机制。实验方法将用于分析破坏机理，并为数值模型的验证和校准提供数据。仿真结果为在考虑不同损伤和失效模型的情况下，在微观尺度上广泛分析不同阶段之间的复杂相互作用提供了补充信息。此外，所开发的数值模型将被用于执行不同的参数研究。

项目成果

A comparative study on mechanical behavior and damage scenario of DP600 and DP980 steels

• DOI: 10.1016/j.mechmat.2020.103339
• 发表时间: 2020-04
• 期刊: Mechanics of Materials
• 影响因子: 3.9
• 作者: A. Darabi;V. Guski;A. Butz;J. Kadkhodapour;S. Schmauder