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Application of Nil Ductility Temperature and Charpy V-Notch Testing to Design and Quality Control of High Strength, Low Alloy Steel
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Abstract
The importance of notch toughness is gaining rapid recognition by the construction equipment industry. The traditional Charpy V-Notch Test is not directly applicable to design, but nil ductility temperature (NDT) can be used to predict the onset of brittle fracture given the temperature, local and average stress, and approximate initial crack length. This investigation shows that while Charpy V-Notch energy cannot be used to accurately predict NDT for ASTM A572 - Grade 50 steels, the CVN test may be useful for screening purposes. The spread of NDT in production material was found to be 110°F.
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Authors
Citation
Suess, M. and Proft, T., "Application of Nil Ductility Temperature and Charpy V-Notch Testing to Design and Quality Control of High Strength, Low Alloy Steel," SAE Technical Paper 760657, 1976, https://doi.org/10.4271/760657.Also In
References
- Irving R. R. “Can You Afford to Ignore Fracture-Safe Design?” “Iron Age,” April 26 1976 47 53
- Novak S. R. “Resistance to Plane-Stress (R-Curve Behavior) of A572 Structural Steel.” ASTM STP 591, American Society for Testing and Materials Philadelphia, PA August 1974
- Barsom J. M. Sovak J. F. Novak S. R. “Toughness Criteria for Structural Steels: Fracture Toughness of A572 Steels.” AISI project 168, U. S. Steel Research Laboratory Report 97 021-011 December 1972
- Pellini W. S. “Evolution of Engineering Principles for Fracture Safe Design of Steel Structures.” AD 697631 Naval Research Laboratory Washington, D. C. September 23 1969
- ASME Boiler and Pressure Vessel Code, Section III. Summer 1972 Addenda The American Society of Mechanical Engineers New York, NY June 30 1972
- Standard Specifications for Highway Bridges-1969, and Interim Specif ications-1971. Developed by AASHTO Committee on Bridges and Structures Association of State Highway and Transportation Officials Washington, D. C.
- Barsom J. M. “The Development of AASHTO Fracture Toughness Requirements for Bridge Steels.” American Iron and Steel Institute Washington, D. C. February 1975
- ASTM E8-69 “Standard Methods of Tension Testing of Metallic Materials.” Annual Book of ASTM Standards, Part 31, ASTM Philadelphia, PA 1972
- Cudney G. R. “Stress Histories of Highway Bridges.” Journal of the Structural Division, ASCE 94 12 December 1968 2725 2737
- ASTM E436-71T “Drop-Weight Tear Tests of Ferritic Steels.” Annual Book of ASTM Standards, Part 31, ASTM Philadelphia, PA 1972
- ASTM E208-69 “Standard Method for Conducting Drop-Weight Test to Determine Nil-Ductility Transition Temperature of Ferritic Steels.” Annual Book of ASTM Standards, Part 31, ASTM Philadelphia, PA 1972
- ASTM E23-72 “Standard Methods for Notched Bar Impact Testing of Metallic Materials.” Annual Book of ASTM Standards, Part 31, ASTM Philadelphia, PA 1972