Analysis of Modeling Parameters on Threaded Screws
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); New Mexico Institute of Mining and Technology, Socorro, NM (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Assembled mechanical systems often contain a large number of bolted connections. These bolted connections (joints) are integral aspects of the load path for structural dynamics, and, consequently, are paramount for calculating a structure's stiffness and energy dissipation properties. However, analysts have not found the optimal method to model appropriately these bolted joints. The complexity of the screw geometry cause issues when generating a mesh of the model. This paper will explore different approaches to model a screw-substrate connection. Model parameters such as mesh continuity, node alignment, wedge angles, and thread to body element size ratios are examined. The results of this study will give analysts a better understanding of the influences of these parameters and will aide in finding the optimal method to model bolted connections.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1192267
- Report Number(s):
- SAND--2015-5135; 594650
- Country of Publication:
- United States
- Language:
- English
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