Steel Weld Metal Fatigue index file

Steel Base Metal and Weld Metal Fatigue files: Index :

Web Page: https://fde.uwaterloo.ca/Fde/Material/Steel/Weldmetal/steelWeldMetal.html
Updates: Dec2014, Mar2015

The files in this directory are offered by the U.of Waterloo students, alumni,
F.D.+ E. committee members and others as a set of example files for the construction of
web based material fatigue property databases. They are meant
for research and informational use only, not for design.

SAE1522H (CSA G40.12) 155_BHN Base metal fatigue (D.B.Robins) | Fitted | Calculator
- Ref.: David B. Robins, "Fatigue Strength of Welded Structural Elements,"
  MSc.(Civil) Thesis, UoWaterloo, Aug.1969.
Weld Metal fatigue of SAE1522H (CSA G40.12) 155_BHN (D.B.Robins 1969) | Fitted | Calculator | Cyclic Stress-Strain Simulator
SAE1522H (CSA G40.12) Base metal fatigue (A.M. van der Zanden, 1971)
- Ref.: A.M. van der Zanden, "Fatigue Analysis of Welded Members Based on
  Local Stress-Strain History at Internal Cavities," MSc. Thesis, Civil Engr.
  Univ. of Waterloo, March 1971.
- Initial Tensile + Cyclic Stress-Strain of Base metal"
- Base metal Tensile test (text file)
Weld metal fatigue of SAE1522H (CSA G40.12) (A.M.van der Zanden, 1971)
(Note: these specimens were initially overstrained incrementally followed
by constant amplitude.)
DIN BHW25, DIN TT-StE32, WeldMetal:
- DIN TT_StE32, DIN 1.08851 Structural Steel (Heuler, Seeger 1983)
- DIN BHW25, DIN 1.8802 Structural Steel (Heuler, Seeger 1983)
- Welded TT_StE32 to BHW25 Weld Metal (Heuler, Seeger 1983)
- Compare Strain-Life | Compare Neuber Equivalent Stress
NRIM Data Sheets : (Nat. Res. Inst. for Metals, Tokyo, Japan)
(Note: the three NRIM studies are highly detailed work including
the chemistry of Base, Filler and Weld metals, hardness profiles, and
a variety of fatigue test types. They are available here:
http://smds.nims.go.jp/openTest/en/content/fatiguelist.html
The following 3 weld metal files have been derived from data in the reports. )
- SPV50 (Si-Mn Steel) WeldMetal NRIM Sheet no. 47 1985
  Chem. of weld metal: 0.075C wt% .32Si 1.56Mn .002P .009S .027Ni .040Cr .38Mo .008V
- SB42 (C-Si Steel) WeldMetal NRIM Sheet no. 57 1987
  Chem. of weld metal: 0.08C wt% .29Si 1.49Mn .02P .006S .024Ni .014Cr .002Mo .002V
- SCMV2-2NT (1Cr-0.5Mo Steel) WeldMetal NRIM Sheet no. 77 1993
  Chem. of weld metal: 0.115C wt% .24Si .71Mn .013P .002S .031Ni 1.25Cr .51Mo .059Cu
ASTM A514 High Strength Structural Steel
- A514 Weld Metal (Higashida, Lawrence 1976)

Comparison of Weld Metal Fatigue Results:

(Click figure to enlarge)
Cyclic Stress-Strain Curve (Weld Metals)
(Click figure to enlarge)
Raw Strain vs Life Data and a Fit line (Weld Metals)
(Click figure to enlarge)
Raw Neuber Equiv. Stress vs Life Data and a Fit line (Weld Metals)
Conclusion Although the data spread is typical for fatigue data collections from
sources (e.g.: Scatter in Fatigue data )
the VanderZanden specimens were initially overstrained +/-1.0% strain and then tested in
fatigue. Hence until more data is available the "Fitted" curve is left as shown.
The Higashida and Lawrence A514 weld metal (Sy=796mpa) results lie significantly above the
lower strength material results, which suggest that data should be collected and
presented separately for such higher strength steel weld metals.

Comparison of Weld Metal Results to A36 Fatigue Results

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