BAR APPLICATIONS GROUP ISSUES FIFTH UPDATE OF ONLINE
DATABASE
Bar Steel Fatigue Database includes more than 110
steel grade and process iterations
DETROIT, May 5, 2010 – The Bar Applications
Group (BAG) of the Steel Market Development Institute (SMDI) announced
the release of its fifth update of the online Bar Steel Fatigue Database
today, making more than 110 steel grade and process iterations available
to project team members and design engineers in the ground vehicle
industry.
“The Fatigue Database provides core information that better
predicts the design capability of improved parts,” David Anderson,
director of Long Products for SMDI, said. “Database users, working
in tandem with steel and ground vehicle strategic partners, can reduce
design cycle time and optimize component part design by selecting the
best steel grade and process in less time at reduced costs.”
In cooperation with the automotive industry, SMDI developed the Bar
Steel Database for the ground vehicle and original equipment industries.
The database includes fatigue data, as well as a compilation of
associated steel processing, mechanical property and microstructure
information.
The Bar Steel Fatigue Database provides data in easy-to-read tables
of monotonic and cyclical stress-strain curves, elastic and plastic
strain-amplitude curves and offers a complete source of steel bar
technical information.
“The database was launched in 2003 with 21 steel grade and
process combinations or iterations, which were expanded to 43 in
2004,” Anderson said. “This update brings the number of
iterations to more than 110, with the plan to raise the total to more
than 150.”
Future information in the database will include:
-
Effect of variation in composition within SAE
limits on fatigue properties;
-
Residual stress measurements;
-
Effect of varying hardness due to change in
microstructure on fatigue properties;
-
Comparison of fatigue properties of as-rolled
and forged microalloyed steels;
-
The effects of random overloads on fatigue
behavior; and
-
Continued comparisons of the fatigue properties
of atmosphere carburized and vacuum carburized steels.
“We have been examining torsion fatigue and
mathematically correlating axial-to-torsional results, which will
further improve the fatigue knowledge base. We have also been looking at
case core samples, such as carburized case-hardened shafts and
gears,” Anderson said.
The Steel Market Development Institute (SMDI), a
business unit of the American Iron and Steel Institute (AISI), grows and
maintains the use of steel through strategies that promote
cost-effective solutions in the automotive, construction and container
markets, as well as for new-growth opportunities in non-traditional
steel markets. The Long Products Market Development Group is a part of
the SMDI and focuses on advancing the use of steel in the highly
competitive automotive market. For more news or information,
visit www.autosteel.org.
SMDI Long Products Group investors:
-
Gerdau Ameristeel
-
Gerdau MACSTEEL
-
Nucor Corporation
-
The Timken Company
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