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Investigation of ship collision with floating pier structures
Chegenizadeh, Amin,Ghadimi, Behzad,Nikraz, Hamid Techno-Press 2014 Interaction and multiscale mechanics Vol.7 No.1
This study investigated the collision of ships withfloating pier structures. The nature of the collision phenomenon is complex, and the understanding of it has developed through the modelling of offshore structures. ABAQUS software was used to investigate the collision phenomenon. The interaction between the ship and structural system was modelled, and the stress distribution both at thetime of collision and afterwardswasobserved and modelled. The strain energy absorption by different structural partswas calculated and comparisonswere made.
Investigation of ship collision with floating pier structures
Chegenizadeh, Amin,Ghadimi, Behzad,Nikraz, Hamid Techno-Press 2014 Coupled systems mechanics Vol.3 No.3
This study investigated the collision of ships withfloating pier structures. The nature of the collision phenomenon is complex, and the understanding of it has developed through the modelling of offshore structures. ABAQUS software was used to investigate the collision phenomenon. The interaction between the ship and structural system was modelled, and the stress distribution both at thetime of collision and afterwardswasobserved and modelled. The strain energy absorption by different structural partswas calculated and comparisonswere made.
A novel two-dimensional approach to modelling functionally graded beams resting on a soil medium
Amin Chegenizadeh,Behzad Ghadimi,Hamid Nikraz,Mesut Simsek 국제구조공학회 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.51 No.5
The functionally graded beam (FGB) is investigated in this study on both dynamic and static loading in case of resting on a soil medium rather than on the usual Winkler-Pasternak elastic foundation. The powerful ABAQUS software was used to model the problem applying finite element method. In the present study, two different soil models are taken into account. In the first model, the soil is assumed to be an elastic plane stress medium. In the second soil model, the Drucker-Prager yield criterion, which is one of the most well-known elastic-perfectly plastic constitutive models, is used for modelling the soil medium. The results are shown to evaluate the effects of the different soil models, stiffness values of the elastic soil medium on the normal and shear stress and free vibration properties. A comparison was made to those from the existing literature. Numerical results show that considering real soil as a continuum space affects the results of the bending and the modal properties significantly.
A novel two-dimensional approach to modelling functionally graded beams resting on a soil medium
Chegenizadeh, Amin,Ghadimi, Behzad,Nikraz, Hamid,Simsek, Mesut Techno-Press 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.51 No.5
The functionally graded beam (FGB) is investigated in this study on both dynamic and static loading in case of resting on a soil medium rather than on the usual Winkler-Pasternak elastic foundation. The powerful ABAQUS software was used to model the problem applying finite element method. In the present study, two different soil models are taken into account. In the first model, the soil is assumed to be an elastic plane stress medium. In the second soil model, the Drucker-Prager yield criterion, which is one of the most well-known elastic-perfectly plastic constitutive models, is used for modelling the soil medium. The results are shown to evaluate the effects of the different soil models, stiffness values of the elastic soil medium on the normal and shear stress and free vibration properties. A comparison was made to those from the existing literature. Numerical results show that considering real soil as a continuum space affects the results of the bending and the modal properties significantly.