An improved stiffness model is proposed for bolted joints made of similar and dissimilar plates. A novel approach is used to obtain an expression for the effective area used for determining the joint stiffness. More accurate estimate of the joint stiffness provides a more reliable prediction of the joint behavior both during its initial assembly, as well as under subsequently applied tensile loads in service. The effect of the grip length-to-diameter ratio, joint sizes, underhead contact radii ratio, hole clearance, and plate material/thickness ratio are investigated. Experimental data are used for determining the envelope angle α in the proposed analytical model. Finite element modeling is used for evaluating the accuracy of the proposed stiffness model.

1.
Juvinall
,
R. C.
, and
Marshek
,
K. M.
, 2000,
Fundamentals of Machine Component Design
,
3rd ed.
,
Wiley
,
New York
, Chap. 10.
2.
Motosh
,
N.
, 1976, “
Determination of Joint Stiffness in Bolted Connections
,”
ASME J. Eng. Ind.
0022-0817,
98
(
3
), pp.
858
861
.
3.
Lehnhoff
,
T. F.
,
Mckay
,
M. L.
, and
Belloea
,
V. A.
, 1992, “
Member Stiffness and Bolt Spacing of Bolted Joints
,”
ASME Pressure Vessels and Piping Division
, PVP-Vol.
248
, pp.
63
72
.
4.
Lehnhoff
,
T. F.
,
Ko
,
K. II.
, and
Mckay
,
M. L.
, 1994, “
Member Stiffness and Contact Pressure Distribution of Bolted Joints
,”
ASME J. Mech. Des.
0161-8458,
116
, pp.
550
557
.
5.
Shigley
,
J. E.
,
Mischke
,
C. R.
, and
Budynas
,
R. G.
, 2004,
Mechanical Engineering Design
,
7th ed.
,
McGraw-Hill
,
New York
.
6.
Wileman
,
J.
,
Choudhury
,
M.
, and
Green
,
I.
, 1991, “
Computation of Member Stiffness in Bolted Connection
,”
ASME J. Mech. Des.
0161-8458,
113
, pp.
432
437
.
7.
Norton
,
R. L.
, 2000,
Machine Design: An Integrated Approach
,
2nd ed.
,
Prentice-Hall
,
Englewood Cliffs, NJ
.
8.
Rasmussen
,
J.
,
Norgaard
,
I. B.
,
Haastrup
,
O.
, and
Haastrup
,
J.
, 1978, “
Bolted Joints. A Two Body Contact Problem With Friction
,” Euromech Colloquium No. 110, Sept. 27–29, pp.
115
120
.
9.
Alkatan
,
F.
,
Setphan
,
P.
,
Daidie
,
A.
, and
Guillot
,
J.
, 2007, “
Equivalent Axial Stiffness of Various Components in Bolted Joints Subjected to Axial Loading
,”
Finite Elem. Anal. Design
0168-874X,
43
(
8
), pp.
589
598
.
10.
1986, VDI 2230 B1.1, Systematische Berechung von hochbeanspruchten Schraubenverbidungen, zylindrische Einschraubenverbindungen, VDI, Düsseldorf, Germany.
This content is only available via PDF.
You do not currently have access to this content.