Research Article
Jul 1974
Dynamic Kc Testing of Structural Steel
Authors: Ronald B. Madison, M.ASCE, and George R. IrwinAuthor Affiliations
Publication: Journal of the Structural Division
Volume 100, Issue 7
Abstract
Fracture toughness Kc values were determined for structural steels in thickness and at loading rates and temperatures representative of service conditions for many civil structures, with particular interest centered on bridges. The measurements were made using notched-bend tests with specimens 3-in. deep, 12-in. long, the full plate thickness, and with notches fatigue precracked to a depth of 1 in. The Kc values were computed using the observed maximum load and a crack size plasticity adjustment. A cushioned drop-weight loading technique provided loading times of 0.5 x 10-³ sec to 2 x 10-³ sec. Strain gages on the loading tup of the free-falling weight permitted load-time recordings for the tests. The limitation on useful Kc determinations due to specimen size was approximately 1.25 (in.)1,2 in. times the applicable yield strength of the steel. The test results presented are for temperatures ranging from –120° to 60°F and include, for comparison, results obtained with loading times of 1 – 3 sec.
Get full access to this article
View all available purchase options and get full access to this article.
Information & Authors
Information
Published In
Journal of the Structural Division
Volume 100 • Issue 7 • July 1974
Pages: 1331 - 1349
Copyright
© 1974 American Society of Civil Engineers.
History
Published in print: Jul 1974
Published online: Feb 1, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
Ronald B. Madison, M.ASCE
Salesman, Bethlehem Steel Corp., Chicago, Ill.; formerly, Research Instr., Fritz Engrg. Lab., Lehigh Univ., Bethlehem, Pa.
George R. Irwin
Adjunct Prof. of Mechanics, Lehigh Univ., Bethlehem, Pa.
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
Cited by
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.