Stochastic finite elements: a spectral approach
Stochastic finite elements: a spectral approach
Model-Aided Diagnosis of Mechanical Systems: Fundamentals, Detection, Localization, and Assessment
Model-Aided Diagnosis of Mechanical Systems: Fundamentals, Detection, Localization, and Assessment
Compliance-based structural damage measure and its sensitivity to uncertainties
Computers and Structures
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This lecture deals with two actual issues of computational structures technology: simulation and assessment of structural damage. Material damage modeling is considered by example of reinforced concrete. Time-independent as well as time-dependent damage processes are considered. Structural damage simulation is implemented in the framework of the nonlinear finite element method using multi-level simulation techniques.A basic concept of structural damage assessment with respect to carrying capacity has been recently proposed by the authors. It is now completed by a new virtual-energy-based (VEB) global damage measure. The inherent uncertainties of material and structural parameters are taken into account statistically.For illustration purposes, the approach has been applied first to simulate and then to estimate the damage evolution of a reinforced concrete beam and a 3-span slab bridge.