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Title: A Method to Capture Macroslip at Bolted Interfaces

Abstract

Relative motion at bolted connections can occur for large shock loads as the internal shear force in the bolted connection overcomes the frictional resistive force. This macroslip in a structure dissipates energy and reduces the response of the components above the bolted connection. There is a need to be able to capture macroslip behavior in a structural dynamics model. A linear model and many nonlinear models are not able to predict marcoslip effectively. The proposed method to capture macroslip is to use the multi-body dynamics code ADAMS to model joints with 3-D contact at the bolted interfaces. This model includes both static and dynamic friction. The joints are preloaded and the pinning effect when a bolt shank impacts a through hole inside diameter is captured. Substructure representations of the components are included to account for component flexibility and dynamics. This method was applied to a simplified model of an aerospace structure and validation experiments were performed to test the adequacy of the method.

Authors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1337958
Report Number(s):
SAND2015-9141C
Journal ID: ISSN 2191-5644; 608013
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the IMAC-XXXIV A Conference and Exposition on Structural Dynamics held January 25-28, 2016 in Orlando, Florida.
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Hopkins, Ronald Neil, and Heitman, Lili Anne Akin. A Method to Capture Macroslip at Bolted Interfaces. United States: N. p., 2015. Web. doi:10.1007/978-3-319-29763-7_21.
Hopkins, Ronald Neil, & Heitman, Lili Anne Akin. A Method to Capture Macroslip at Bolted Interfaces. United States. doi:10.1007/978-3-319-29763-7_21.
Hopkins, Ronald Neil, and Heitman, Lili Anne Akin. Thu . "A Method to Capture Macroslip at Bolted Interfaces". United States. doi:10.1007/978-3-319-29763-7_21. https://www.osti.gov/servlets/purl/1337958.
@article{osti_1337958,
title = {A Method to Capture Macroslip at Bolted Interfaces},
author = {Hopkins, Ronald Neil and Heitman, Lili Anne Akin},
abstractNote = {Relative motion at bolted connections can occur for large shock loads as the internal shear force in the bolted connection overcomes the frictional resistive force. This macroslip in a structure dissipates energy and reduces the response of the components above the bolted connection. There is a need to be able to capture macroslip behavior in a structural dynamics model. A linear model and many nonlinear models are not able to predict marcoslip effectively. The proposed method to capture macroslip is to use the multi-body dynamics code ADAMS to model joints with 3-D contact at the bolted interfaces. This model includes both static and dynamic friction. The joints are preloaded and the pinning effect when a bolt shank impacts a through hole inside diameter is captured. Substructure representations of the components are included to account for component flexibility and dynamics. This method was applied to a simplified model of an aerospace structure and validation experiments were performed to test the adequacy of the method.},
doi = {10.1007/978-3-319-29763-7_21},
journal = {},
issn = {2191-5644},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {10}
}

Conference:
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