MULTI-SCALE BOUNDARY ELEMENT MODELLING OF MATERIAL DEGRADATION AND FRACTURE

2009 ◽  
pp. 101-158
Author(s):  
G. K. Sfantos ◽  
M. H. Aliabadi
Keyword(s):  
Boundary Element ◽  
Material Degradation ◽  
Element Modelling ◽  
Multi Scale

scholarly journals Boundary element modelling of wave diffraction by interaction with wave-offshore structure and dredged region

2010 ◽  
Vol 17 (2) ◽  
pp. 67-71
Author(s):  
S. Kim ◽  
H. Lee
Keyword(s):  
Boundary Element ◽  
Wave Height ◽  
Wave Diffraction ◽  
Normal Incidence ◽  
Boundary Integral ◽  
Integral Approach ◽  
Front Face ◽  
Offshore Structure ◽  
Element Modelling ◽  
Sea Bed

Boundary element modelling of wave diffraction by interaction with wave-offshore structure and dredged region The purpose of this study is to estimate the wave height at the front face of breakwater (Refracted breakwater and Straight breakwater), when dredging like the submarine pit is performed in the distant offshore from outer breakwater. The wave field of the problem is considered to be two dimensional planes and the configuration of the pit region is designated by a single horizontal long-rectangular system. The numerical approach uses the Green function based on the boundary integral approach. The results of the present numerical works are illustrated by applying the normal and inclined incidence. It is shown that in the case of normal incidence, the ratio of wave height reduction at the front face of both types of breakwaters is approximately more than 20% due to the effect of the submarine pit on the sea bed. Furthermore, regardless of the type of breakwater and the difference in incident wave angles, the ratio of wave height was shown to be reduced.

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