Presentation Information
[230101-01-01]Theoretical-numerical Approaches to Damage and Fracture Analysis of Structures
Prof. Michael Kaliske (Technische Universität Dresden)
The design of resilient structures depends on a comprehensive understanding of structural behavior through realistic models of material damage, fracture processes, and failure to evaluate complex load scenarios, optimize repair intervals, and predict remaining lifetimes. This plenary talk explores key aspects of nonlocal damage models applied to multiaxial loading scenarios, emphasizing the mechanisms of induced anisotropy, which is inherent in concrete. Applications to discretization techniques, including the Finite Element Method (FEM) and the Material Point Method (MPM), illustrate the versatility and integration of these material models across different computational frameworks.
Another focus is on recent energy-based fracture formulations, discussing their potential in addressing complex fracture processes such as crack branching, multi-physical couplings, and impact loads. Additionally, we introduce an algorithm for calculating effective limit criteria for composites and multiscale materials. Its computational efficiency enables the exploration of the structural design space and facilitates structural optimization. The presented models and frameworks are demonstrated through diverse examples, spanning concrete structures, wooden artwork, pavement systems, and glass components.
Another focus is on recent energy-based fracture formulations, discussing their potential in addressing complex fracture processes such as crack branching, multi-physical couplings, and impact loads. Additionally, we introduce an algorithm for calculating effective limit criteria for composites and multiscale materials. Its computational efficiency enables the exploration of the structural design space and facilitates structural optimization. The presented models and frameworks are demonstrated through diverse examples, spanning concrete structures, wooden artwork, pavement systems, and glass components.