Modeling, Identification and Simulation of Dynamics of Structures With Joints and Interfaces
Song, Yaxin
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https://hdl.handle.net/2142/85090
Description
Title
Modeling, Identification and Simulation of Dynamics of Structures With Joints and Interfaces
Author(s)
Song, Yaxin
Issue Date
2004
Doctoral Committee Chair(s)
Bergman, Lawrence A.
Department of Study
Aerospace Engineering
Discipline
Aerospace Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Mechanical
Language
eng
Abstract
To account for both dynamic impact and friction, a general joint interface element is also developed. Here, segment-to-segment contact (SSC) is considered, and contact effects are accounted for along continuous edges of the elements. Thus, micro-scale stick-slip behavior along the joint interfaces can be captured even with a relatively coarse mesh. Numerical examples demonstrate that the general joint interface element is capable of accounting for the friction and impact damping in joint interfaces, capturing the transformation of vibration energy from low frequency to high due to impact, and effectively describing the transient relation between the varying normal pressure and tangential traction.
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