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Model updating techniques for damage detection in concrete beam using optical fiber strain measurement device

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Academic year: 2021

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Figure 1: Post-tensioned concrete beam of 8 meter length by means of 3 steel cables (in red) - Optic fiber (in blue) on a longitudinal armature
Figure 2: Strain sensor outputs from optic fiber (in brown) and simulated strain before and after Tikhonov-based model updating process
Figure 3: Normalized Young modulus E/E ud in each subdomain after deterministic model updating strategies - Comparison of Tikhonov and Constitutive Relation Error results.
Figure 4: Constitutive Relation Error in each subdomain at iteration 0 (at left) and at iteration 1 (at right) - At iteration 0, Young modulus in subdomain 13 has to be updated.
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