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

该项目的主要目标是提供一个现实的和一般的描述双相钢的变形和破坏机制。因此，将考虑不同等级的双相钢、不同的载荷条件和不同的长度尺度，特别关注微观结构水平。在这个项目中采用的方法的特点是实验和数值方法相结合，以预测主要的破坏机制取决于微观结构和应力状态。实验方法将被用来分析故障机制，并提供数据的验证和校准的数值模型。模拟结果提供了额外的信息，考虑到不同的模型，以解释损坏和故障的情况下，在微观尺度上的不同阶段之间的复杂的相互作用的广泛分析。此外，开发的数值模型将被应用于执行不同的参数研究。

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.