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Damage simulation in Bridge Finite Element Modelling

Damage simulation in Bridge Finite Element Modelling

Damage simulation in Bridge Finite Element Modelling

(OP)
Dear Bridge engs,

I have come across different techniques to mimic the damage condition in bridge structures. I list down what I do often and others can keep the list continuing!
For bridge condition assessment, either a hair-size crack or major spalling, I'd following:

  • reduction in cross section depending on severity of damage scenario
  • reduction in stiffness (E); it could also be simultaneous reduction in (EI) based on severity of damage
  • entirely removing a particular section for onerous damage
I need to highlight having proper meshing size and quality is of high importance for all of the aforementioned cases; needless to say proper boundary condition, connectivity of elements and etc which are assumed known by user!


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