Abstract
A conventional method of damage modeling by a reduction in stiffness is insufficient to model the complex non-linear damage characteristics of concrete material accurately. In this research, the concrete damage plasticity constitutive model is used to develop the numerical model of a deck beam on a berthing jetty in the Abaqus finite element package. The model constitutes a solid section of 3D hexahedral brick elements for concrete material embedded with 2D quadrilateral surface elements as reinforcements. The model was validated against experimental results of a beam of comparable dimensions in a cited literature. The validated beam model is then used in a three-point load test configuration to demonstrate its applicability for preliminary numerical evaluation of damage detection strategy in marine concrete structural health monitoring. The natural frequency was identified to detect the presence of damage and mode shape curvature was found sensitive to the location of damage.
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Article Highlights
• In order for wave energy to be a viable energy option, the survivability in harsh offshore environments must be guaranteed.
• Peak forces in the connection line used in the wave energy concept developed at Uppsala University are studied.
• Three numerical models are presented and compared with each other and with the physical wave tank data.
• The performance of each model is studied and seen dependent on buoy geometry and applied level of power take-off damping.
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Chandrasekaran, S., Kumar, P.T.A. Damage Detection in Reinforced Concrete Berthing Jetty Using a Plasticity Model Approach. J. Marine. Sci. Appl. 18, 482–491 (2019). https://doi.org/10.1007/s11804-019-00108-3
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DOI: https://doi.org/10.1007/s11804-019-00108-3