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Dynamic Cliff-Top Beam Response to Wave Impact
Herterich, James; Cox, Ronadh; Dias, Frédéric
The 13th International Conference on Hydrodynamics, Incheon, South Korea, 2-6 September 2018 Boulders are fractured and excavated by large waves along steep coastlines, contributing to coastal erosion. Intense fluid pressures enter cracks in attached bedrock, inducing bending stresses that may result in hydraulic fracture of a block. We consider the dynamic response of an attached rock beam to loading during wave impact. We verify the computational method using a known steady-state solution. We show that fast loading leads to greatest stress in the beam and that the beam oscillates before settling to an equilibrium position. These oscillations can produce large stresses long after the impact time. Science Foundation Ireland
Keyword(s): Boulders; Coastal erosion; Hydraulic fracture; Wave impact; Coastal Irish waters; Aran Islands
Publication Date:
2019
Type: Other
Peer-Reviewed: Unknown
Language(s): English
Institution: University College Dublin
Publisher(s): International Conference on Hydrodynamics
First Indexed: 2019-05-18 06:15:19 Last Updated: 2019-05-18 06:15:19