Page 299 - Root Cause Failure Analysis
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Others 287
Table 31-2 Common Failure Modes of Bolted Joints
BoWJdnt SWmess Ratlo
Damplng in Joint
= ~irectlonofBoltAxisRelathretoVibratlonAds
8
* Galling
Fillet Si and Shape
lmpmper Heat Treatment
NutDilation
PartsFlnlsh
PoorFit
5 Radius of Thmd Roots
RelaxabbnEffeds
Thread Runout
Tool Marks
Boit-up procedure
Condition of Gaskets
Condition of Joint Surfaceg
Improper Preload
P
Thread LuMcation
Type of Tool Used
2 Cmion
8 Magnitude of Load Excurdons
Temperalure Cycling
Source: Integrated Systems, Inc.
