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An investigation on self-loosening o...

Zhang, Ming.

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An investigation on self-loosening of bolted joints.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	An investigation on self-loosening of bolted joints./
作者:	Zhang, Ming.
面頁冊數:	99 p.
附註:	Source: Masters Abstracts International, Volume: 42-02, page: 0669.
Contained By:	Masters Abstracts International42-02.
標題:	Engineering, Mechanical. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1415860
ISBN:	0496206456

An investigation on self-loosening of bolted joints.
Zhang, Ming.

An investigation on self-loosening of bolted joints. - 99 p.

Source: Masters Abstracts International, Volume: 42-02, page: 0669.

Thesis (M.S.)--University of Nevada, Reno, 2003.

Self-loosening process of a bolted joint consists of two distinct stages. The early stage self-loosening is due to the cyclic plastic deformation of the materials. The second stage self-loosening is characterized by the backing off of the nut. The current study concentrated on the investigation of the second stage self-loosening. It was found that for a given preload, there existed an endurance limit below which self-loosening would not persist. An "endurance diagram" concept was developed that can be used directly for the design and evaluation of the bolted joints. In addition, a three-dimensional finite element model was developed. The results from the finite element analysis reveal that the cyclic transverse load introduces a cyclic bending moment on the bolted joint. Micro-slip occurs between the contact surfaces of the engaged threads. The finite element simulation results agree favorably with the experimental observations.

ISBN: 0496206456Subjects--Topical Terms:

783786
Engineering, Mechanical.

An investigation on self-loosening of bolted joints.
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245 1 3 $a An investigation on self-loosening of bolted joints.
300 $a 99 p.
500 $a Source: Masters Abstracts International, Volume: 42-02, page: 0669.
500 $a Adviser: Yanyao Jiang.
502 $a Thesis (M.S.)--University of Nevada, Reno, 2003.
520 $a Self-loosening process of a bolted joint consists of two distinct stages. The early stage self-loosening is due to the cyclic plastic deformation of the materials. The second stage self-loosening is characterized by the backing off of the nut. The current study concentrated on the investigation of the second stage self-loosening. It was found that for a given preload, there existed an endurance limit below which self-loosening would not persist. An "endurance diagram" concept was developed that can be used directly for the design and evaluation of the bolted joints. In addition, a three-dimensional finite element model was developed. The results from the finite element analysis reveal that the cyclic transverse load introduces a cyclic bending moment on the bolted joint. Micro-slip occurs between the contact surfaces of the engaged threads. The finite element simulation results agree favorably with the experimental observations.
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