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Feasibility Study of Passive Electromagnetic Damping Systems
Publisher: American Society of Civil Engineers
Abstract: A linear displacement electromagnetic machine is proposed to be used as a passive structural damper. The electromagnetic damper extracts the kinetic energy imparted into the structure by wind or seismic disturbances by ...
Equivalent Continuum Model for Deployable Flat Lattice Structures
Publisher: American Society of Civil Engineers
Abstract: Deployable structures can be stored in a compact, folded configuration and are easily deployed into load‐bearing, open forms. Hence, they are suitable for applications where speed and ease of erection and reusability are ...
Effect of Transverse Shear Deformation on Elastic Moduli of Thin Ice Plates
Publisher: American Society of Civil Engineers
Abstract: The elastic deformation of thin ice sheets due to bending and shear deformation is considered. The in-plane Young's modulus and the transverse shear modulus are calculated by least-squares fit of transverse plate deflection ...
Simple Friction Model for Scissor‐Type Mobile Structures
Publisher: American Society of Civil Engineers
Abstract: Mobile or articulated structures have kinematic connections that permit large relative displacements between components that undergo small elastic deformations. Deployable structures are one example. They can be stored ...
Hydrodynamic Forces on Flexible Offshore Structures
Publisher: American Society of Civil Engineers
Abstract: The extension of Morison's equation to allow for structural motion in predicting the hydrodynamic force on offshore steel jacket platforms may be based on two different hypotheses: (1) The relative velocity model which ...
Fracture Mechanics Approach for Failure of Concrete Shear Key. I: Theory
Publisher: American Society of Civil Engineers
Abstract: The objective of this paper is to develop a simple mechanical model for the analysis and design of plain or fiber‐reinforced concrete shear key joints. The method makes use of well‐known results of fracture mechanics and ...
Fracture Mechanics Approach for Failure of Concrete Shear Key. II: Verification
Publisher: American Society of Civil Engineers
Abstract: The objective of this paper is to verify a mechanical model for the failure of plain or fiber‐reinforced concrete shear key joints through the comparison of the model's prediction with both experimental measurements and ...
Sea‐Ice Indentation in Creeping Mode
Publisher: American Society of Civil Engineers
Abstract: A finite element method of analysis is developed and applied to the study of global and local pressures generated on a cylindrical indenter during sea‐ice deformations in the creeping mode. Numerical simulations are performed ...