This paper proposes a novel strain hardening model for investigating gasket creep relaxation under compressive step-loading at room temperature. A closed form solution is developed for predicting the steady-state gasket pressure. Step-loading of the gasket may be directly achieved and controlled, or indirectly estimated through the bolt tightening and retightening torque. The effect of gasket material, time duration at each stress level, as well as the geometric parameters of the gasket are investigated. An experimental procedure and test setup are used to validate the proposed gasket model.

References

References
1.
Bickford
,
J. H.
,
1998
,
Gaskets and Gasketed Joints
,
Marcel Dekker
,
New York, NY
, p.
91
.
2.
Bickford
,
J. H.
,
1998
,
Gaskets and Gasketed Joints
,
Marcel Dekker
,
New York, NY
, p.
404
.
3.
Alkelani
,
A. A.
,
Housari
,
B. A.
, and
Nassar
,
S. A.
,
2008
, “
A Proposed Model for Creep Relaxation of Soft Gaskets in Bolted Joints at Room Temperature
,”
ASME J. Pressure Vessel Technol.
,
130
(
1
),
011211
.10.1115/1.2826430
4.
Kobayashi
,
T.
,
Nishida
,
T.
, and
Yamanaka
,
Y.
,
2003
, “
Effect of Creep-Relaxation Characteristics of Gaskets on the Bolt Loads of Gasketed Joints
,”
ASME-PVP Conference, Paper No. PVP2003-1879
,
457
, pp.
111
118
.
5.
Kraus
,
H.
, and
Rosenkrans
,
W.
,
1984
, “
Creep of Bolted Flanged Connections
,”
Welding Resource Council Bulletin No. 294
, pp.
2
8
.
6.
Kraus
,
H.
,
1980
,
Creep Analysis
,
John Wiley and Sons
,
New York, NY
.
7.
Bazergui
,
A.
,
1984
, “
Short Term Creep and Relaxation Behavior of Gaskets
,”
Welding Resource Council Bulletin No.
294
, pp.
9
22
.
8.
Bouzid
,
A.
, and
Chaaban
,
A.
,
1997
, “
An Accurate Method of Evaluating Relaxation in Bolted Flanged Connections
,”
ASME J. Pressure Vessel Technol.
,
119
, pp.
10
17
.10.1115/1.2842254
9.
Bibel
,
G.
, and
Ezell
,
R.
,
1996
, “
Bolted Flange Assembly: Preliminary Elastic Interaction Data and Improved Bolt-Up Procedures
,”
Welding Resource Council Bulletin No. 408
, pp.
1
27
.
10.
Alkelani
,
A. A.
,
Nassar
,
S. A.
, and
Housari
,
B. A.
,
2009
, “
Formulation of Elastic Interaction Between Bolts During the Tightening of Flat-Face Gasketed Joints
,”
Trans. ASME J. Mech. Des.
,
131
,
021004
.10.1115/1.3042149
11.
Tsuji
,
H.
, and
Terui
,
Y.
,
2008
, “
Application of Bolted Flange Joint Assembly Guidelines HPIS Z103 TR to EPTFE Sheet Gasket
,”
Proceedings of the 2008 ASME-PVP Conference
, Paper No. PVP2008-61454, Chicago, IL, pp.
181
187
.
12.
Czernick
,
D. E.
,
1996
,
Gaskets Design, Selection, and Testing
,
McGraw-Hill
,
New York
, p.
89
.
13.
Schiessel
,
H.
,
Metzler
,
R.
,
Blumen
,
A.
, and
Nonnenmacher
,
T. F.
,
1995
, “
Generalized Viscoelastic Models: Their Fractional Equations With Solutions
,”
J. Phys. A
,
28
, p.
6567
.10.1088/0305-4470/28/23/012
14.
Penny
,
P. K.
, and
Marriott
,
D. L.
,
1995
,
Design for Creep
,
2nd ed.
,
McGraw-Hill
,
New York
, p.
13
.
15.
Kraus
,
H.
,
1980
,
Creep Analysis
,
John Wiley & Sons
,
New York
, pp.
21
23
.
16.
Bickford
,
J. H.
, and
Nassar
,
S. A.
, eds.,
1998
, “
Computing the Stiffness of a Fastener
,”
Handbook of Bolts and Bolted Joints
,
J.
Barron
, ed.,
Marcel Dekker
,
New York
, Chap. 11.
17.
Nassar
,
S. A.
, and
Sun
,
T.
,
2007
, “
Surface Roughness Effect on the Torque-Tension Relationship in Threaded Fasteners
,”
Proc. Inst. Mech. Eng., Part J: J. Eng. Tribol.
,
221
, pp.
95
103
.10.1243/13506501JET192
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