3D numerical modelling of rock fracture with a hybrid finite and cohesive element method

2018 ◽  
Vol 199 ◽  
pp. 280-293 ◽  
Author(s):  
Hongxiang Jiang ◽  
Deguang Meng
Keyword(s):  
Numerical Modelling ◽  
Rock Fracture ◽  
Cohesive Element ◽  
3D Numerical Modelling ◽  
Element Method

Parameter Sensitivity in Numerical Modelling of Ice-Structure Interaction With Cohesive Element Method

2016 ◽  
Author(s):  
Dianshi Feng ◽  
Sze Dai Pang ◽  
Jin Zhang
Keyword(s):  
Element Model ◽  
Offshore Structures ◽  
Parameter Sensitivity ◽  
The Arctic ◽  
Cohesive Element ◽  
Structure Interaction ◽  
Marine Structure ◽  
Ice Loads ◽  
The Stability ◽  
Element Method

The increasing marine activities in the Arctic has resulted in a growing demand for reliable structural designs in this region. Ice loads are a major concern to the designer of a marine structure in the arctic, and are often the principal factor that governs the structural design [Palmer and Croasdale, 2013]. With the rapid advancement in computational power, numerical method is becoming a useful tool for design of offshore structures subjected to ice actions. Cohesive element method (CEM), a method which has been widely utilized to simulate fracture in various materials ranging from metals to ceramics and composites as well as bi-material systems, has been recently applied to predict ice-structure interactions. Although it shows promising future for further applications, there are also some challenging issues like high mesh dependency, large variation in cohesive properties etc., yet to be resolved. In this study, a 3D finite element model with the use of CEM was developed in LS-DYNA for simulating ice-structure interaction. The stability of the model was investigated and a parameter sensitivity analysis was carried out for a better understanding of how each material parameter affects the simulation results.

scholarly journals A hybrid embedded cohesive element method for predicting matrix cracking in composites

2016 ◽  
Vol 136 ◽  
pp. 554-565 ◽  
Author(s):  
Mathew W. Joosten ◽  
Matthew Dingle ◽  
Adrian Mouritz ◽  
Akbar A. Khatibi ◽  
Steven Agius ◽  
...  
Keyword(s):  
Matrix Cracking ◽  
Cohesive Element ◽  
Element Method
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