Self-Loosening of Three Similar Bolted Joint Designs Using Finite Element Analysis

2014 ◽  
Author(s):  
Shiva Kumar Manoharan ◽  
Christoph Friedrich
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bolted Joint ◽  
Element Analysis

Load Transfer Analysis of Cracked Bolted Joints

2010 ◽  
Vol 118-120 ◽  
pp. 147-150
Author(s):  
Da Zhao Yu ◽  
Yue Liang Chen ◽  
Yong Gao ◽  
Wen Lin Liu ◽  
Zhong Hu Jia
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Load Transfer ◽  
Three Dimensional ◽  
Element Model ◽  
Bolted Joints ◽  
Bolted Joint ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

Three-dimensional finite element model of a cracked bolted joint has been developed in the non-linear finite element code MSC.Marc and attempts were made to validate it by comparing results with those of experiments and other finite element. Issues in modeling the contact between the joint parts, which affect the accuracy and efficiency of the model, were presented. Experimental measurements of load transfer were compared with results from finite element analysis. The results show that three-dimensional finite element model of cracked bolted joint can produce results in close agreement with experiment. Three-dimensional effects such as bolt titling, seconding and through-thickness variations in stress and strain are well represented by such models. Three-dimensional finite element analysis was also used to study the effects of hole mod and crack on the load transfer behaviour of single lap bolted joints. The results show that hole mode has big effect on load transfer of cracked bolted joint. In the whole progress of crack growth, the load transfer through bolt 1 decrease, and almost all of the load duduction of bolt 1 transfer into blot 2 rather than into bolt 3.

FInite element analysis of loosening mechanism of bolted joint and its application to super slit nut

2004 ◽  
Vol 2004.1 (0) ◽  
pp. 523-524
Author(s):  
Takashi YOKOYAMA ◽  
Satoshi IZUMI ◽  
Atsushi IWASAKI ◽  
Shinsuke SAKAI ◽  
Kinjiro SAITO ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bolted Joint ◽  
Element Analysis

Finite element analysis of loosening mechanism of bolted joint and its application to super slit nut

2004 ◽  
Vol 2004 (0) ◽  
pp. 197-198
Author(s):  
Satoshi IZUMI ◽  
Takashi YOKOYAMA ◽  
Atsushi IWASAKI ◽  
Shinsuke SAKAI ◽  
Kinjiro SAITO ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bolted Joint ◽  
Element Analysis

Parametric Analysis Mechanical Properties of Bolted Joints

2010 ◽  
Vol 97-101 ◽  
pp. 3924-3927 ◽  
Author(s):  
Da Zhao Yu ◽  
Yue Liang Chen ◽  
Zhong Hu Jia ◽  
Yong Gao ◽  
Wen Lin Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Element Model ◽  
Bolted Joints ◽  
Bolted Joint ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

Three-dimensional finite element model of a bolted joint has been developed in the non-linear finite element code MSC.Marc and attempts were made to validate it by comparing results with those of experiments and other finite element. Issues in modeling the contact between the joint parts, which affect the accuracy and efficiency of the model, were presented. Experimental measurements of surface strains and load transfer ratio(LTR) were compared with results from finite element analysis. The results show that three-dimensional finite element model of bolted joint can produce results in close agreement with experiment. Three-dimensional effects such as bolt titling, seconding and through-thickness variations in stress and strain are well represented by such models. Three-dimensional finite element analysis was also used to study the effects of different parameters on the mechanical behaviour of single lap bolted joints. The results show that straight hole, small bolt diameter, and big hole pitch are selected first for bolted joint if other conditions allowed, and effect of bolt material on LTR of joint is small for small load. Interference and pre-stress should be strictly controlled for bolted joints in order to attain the best fatigue capability of lap joint.

A lightweight optimal design model for bolted flange joints without gaskets considering its sealing performance

2018 ◽  
Vol 232 (2) ◽  
pp. 234-255 ◽  
Author(s):  
Benben Ma ◽  
Yichao Zhu ◽  
Fan Jin ◽  
Quan Ding ◽  
Xu Guo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Optimal Design ◽  
Three Dimensional ◽  
Design Parameters ◽  
Bolted Joint ◽  
Element Analysis ◽  
Joint System ◽  
Sealing Performance ◽  
Bolted Flange

The lightweight optimal design of bolted flange joint system without gaskets is still a challenging problem, mainly owing to two issues: the relatively large number of mutually dependent geometric design parameters and the complicated role played by the contact details between members. With these two issues properly addressed, this article aims for devising a concise formulation for lightweight optimal design of bolted joint systems without gaskets. After a systematic examination of the correlations between design parameters, the total number of free design variables is reduced to three: member thickness, bolt spacing, and bolt specification, respectively. Besides, a finite element analysis that can resolve more contact details between members is conducted, and the influencing factors on the pressure distribution at the member surface are thus identified, with a criterion for the system sealing failure incorporated. Based on the findings in this work, a novel design scheme for the joint system is proposed, and good agreement between our predictions and results obtained by a full three-dimensional finite element analysis is shown. The proposed approach can be used to optimize the design parameters of bolted joint systems considering sealing performance without heavy finite element computation and can find applications in many relevant engineering fields.

Finite element analysis of loosening mechanism of bolted joint and its application to super slit nut

2004 ◽  
Vol 2004.8 (0) ◽  
pp. 263-264
Author(s):  
Satoshi IZUMI ◽  
Takashi YOKOYAMA ◽  
Atsushi IWASAKI ◽  
Shinsuke SAKAI ◽  
Kinijro SAITO ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bolted Joint ◽  
Element Analysis
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