scholarly journals Finite element modeling for structural dynamic analysis of bolted joints under uncertainty

2017 ◽  
Vol 199 ◽  
pp. 954-959 ◽  
Author(s):  
P. Langer ◽  
K. Sepahvand ◽  
C. Guist ◽  
S. Marburg
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
Finite Element Modeling ◽  
Bolted Joints ◽  
Structural Dynamic ◽  
Element Modeling

Nonlinear Effects on the Stiffness of Bolted Joints

1996 ◽  
Vol 118 (1) ◽  
pp. 48-53 ◽  
Author(s):  
T. F. Lehnhoff ◽  
W. E. Wistehuff
Keyword(s):  
Finite Element ◽  
Cast Iron ◽  
Finite Element Modeling ◽  
External Load ◽  
Nonlinear Effects ◽  
Bolted Joints ◽  
Radial Position ◽  
Bolted Joint ◽  
Element Modeling ◽  
Percent Decrease

Axisymmetric finite element modeling of bolted joints was performed to show the effects of the magnitude and position of the external load, member thickness, and member material on the bolt and member stiffnesses. The member stiffness of the bolted joint was found to decrease 10 to 42 percent for the 20-mm to 8-mm bolts, respectively, as the magnitude of the external load was increased. Member stiffness appears to be independent of the radial location of the external load and increases as the member thickness decreases. Member stiffness decreased by a factor of 2.5 to 3 with a change in the member material from steel to aluminum. The cast iron members had a decrease in member stiffness of a factor of 1.7 to 1.9. The aluminum over cast iron combination had a member stiffness between the aluminum and cast iron alone. Bolt stiffnesses varied by less than two percent for changes in the magnitude of the external load for all bolt sizes and member materials, except for the 8-mm bolt where stiffness increased by approximately 11 percent. Changes in radial position of the external load had no effect on the bolt stiffness. A 3 to 13-percent decrease in the bolt stiffness was found when changing from steel to aluminum members. A 2 to 3-percent bolt stiffness decrease resulted when the member material was changed from steel to cast iron and similarly from steel to the aluminum over cast iron combination

Current 3-D structural dynamic finite element modeling capabilities

1997 ◽  
Author(s):  
Richard Benney ◽  
Keith Stein ◽  
John Leonard ◽  
Michael Accorsi ◽  
Richard Benney ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Structural Dynamic ◽  
Element Modeling ◽  
Dynamic Finite Element

Exact First Order Finite Element Modeling for Eddy Current NDE

1991 ◽  
Vol 3 (1) ◽  
pp. 235-253 ◽  
Author(s):  
L. D. Philipp ◽  
Q. H. Nguyen ◽  
D. D. Derkacht ◽  
D. J. Lynch ◽  
A. Mahmood
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Eddy Current ◽  
Element Modeling ◽  
First Order ◽  
Eddy Current Nde
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