Abstract
The bolt-ball joint system widely used in china is a typical semi-rigid joint. Based on the mechanical characters of bolt-ball joint system, three-dimensional solid models of three bolt-ball joints are established through software ANSYS using solid elements and contact elements. With the geometric and material nonlinearities taken into consideration, the bending stiffness of bolt-ball joint is analyzed and the moment-rotation curves are obtained. Experimental study is also carried out to obtain the moment-rotation curves of the bolt-ball joint to verify the numerical simulation results. The experimental results agree well with the theoretical ones, indicating that the numerical simulation is accurate and effective to simulate the bolt-ball's mechanical characters. This numerical simulation results can serve as technical reference for design and application of the bolt-ball joint and other semi-rigid joints.
| Original language | English |
|---|---|
| Pages (from-to) | 92-99 |
| Number of pages | 8 |
| Journal | Gongcheng Lixue/Engineering Mechanics |
| Volume | 26 |
| Issue number | 12 |
| State | Published - Dec 2009 |
| Externally published | Yes |
Keywords
- Bending stiffness
- Bolt-ball joint system
- Contact element
- Geometric nonlinearity
- Material nonlinearity
- Numerical simulation
- Semi-rigid joint
- Solid element
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