A Physics-Based Modeling Approach for the Dynamics of Bolted Joints: Deterministic and Stochastic Perspectives

Accelerating structural dynamics simulations with localised phenomena through matrix compression and projection‐based model order reduction

“…5 In addition, the available computational frameworks have been proven able to capture localised model features and phenomena that often occur on concentrated regions or components, 6,7 such as localised cracks 8,9 or loosening of joints 10,11 and bolted connections. 12,13 However, the majority of the contributed approaches suffer high computational costs or pose significant requirements on resources, such as memory, 14 as they essentially require high fidelity or fine-scale representations of the structural configuration and material properties. As the identification and tracking of damage, fracture, and structural failure states and modes is particularly useful for reliability analysis tasks, or diagnostics and prognostics in the context of Structural Health Monitoring (SHM) applications, 15 it becomes evident that, for such downstream tasks, repeated model evaluations are needed.…”

“…In this context, several numerical models have been proposed over the years to evaluate the respective limit states due to the effect of damage phenomena, such as delamination, 4 or failure due to permanent plastic deformations 5 . In addition, the available computational frameworks have been proven able to capture localised model features and phenomena that often occur on concentrated regions or components, 6,7 such as localised cracks 8,9 or loosening of joints 10,11 and bolted connections 12,13 . However, the majority of the contributed approaches suffer high computational costs or pose significant requirements on resources, such as memory, 14 as they essentially require high fidelity or fine‐scale representations of the structural configuration and material properties.…”