Abstract

The 6061-T6 10-gauge sheet-type flat fatigue specimen was designed, manufactured, and tested on an Instron 8081 fatigue test machine. The fatigue tests were performed under five different cyclic axial loads with 195 tests. This paper will display how to use these 195 test data under different cyclic axial loads to build a probabilistic fatigue damage model. The model is validated by the results obtained from the traditional P-S-N curve approach. One advantage of this probabilistic fatigue damage model is that it can calculate the reliability of a component under any type of cyclic loads at any cyclic load level.

References

1.
ASTM STM E466 – 15
, “
Standard Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials
,” ASTM, West Conshohocken, PA.
2.
Kececioglu
,
D.
,
2003
,
Robust Engineering Design-by-Reliability With Emphasis on Mechanical Components & Structural Reliability
,
DEStech Publications
,
Lancaster, PA
.
3.
Rao
,
S. S.
,
2015
,
Reliability Engineering
,
Pearson,
Boston, MA.
4.
Le
,
X.
,
1993
, “
The Research on Reliability Fatigue Design of Mechanical Components
,” Doctoral dissertation, Shanghai,
Shanghai Jiaotong University
.
5.
Le
,
X.
, and
Peterson
,
M. L.
,
1999
, “
A Method for Fatigue-Based Reliability When the Loading of the Component is Unknown
,”
Int. J. Fatigue
,
21
(
6
), pp.
603
610
.10.1016/S0142-1123(99)00016-X
6.
Budynas
,
R.
, and
Nisbett
,
K.
,
2015
,
Shigley's Mechanical Engineering Design
, 10th ed.,
McGraw-Hill Education
,
New York
.
7.
Martinez
,
W. L.
, and
Martinez
,
A. R.
,
2016
,
Computational Statistics Handbook With MATLAB
,
3
rd ed.,
CRC Press
, Boca Raton, FL.
8.
Henry
,
S. D.
,
Dragolich
,
K. S.
, and
DiMatteo
,
N. D.
,
1995
,
Fatigue Data Book: Light Structural Alloys
,
ASM International
, Materials Park, OH.
You do not currently have access to this content.