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Title:

NOTCH TOUGHNESS VARIABILITY IN BRIDGE STEEL PLATES

Accession Number:

00642312

Record Type:

Monograph

Availability:

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Order URL: http://worldcat.org/isbn/0309053536

Abstract:

This report presents the results of an experimental study of the variability of Charpy V Notch (CVN) fracture toughness in steel plates typically used in steel bridge fabrication. Forty-four plates from four domestic suppliers were tested. The tested plates were purchased as fracture-critical material for temperature Zone 3. One-, two-, and four-inch plate was tested of ASTM A572 and A588. The plates were sampled along their length, width, and thickness. The CVN test results were analyzed statistically to determine if location within the plate was significant with respect to toughness and the overall variability of the plate. The results indicated a significant influence of location in many of the plates. The overall variability of the as-rolled plates was quite large and some plates exhibited pronounced systematic end-to-end and side-to-side variability. The normalized plates had much less variation in toughness. A statistically based specification was developed that accounts for the variability of the CVN tests. The specification requires testing at both ends of plates supplied in the as-rolled condition. Normalized plates, due to their lower variability, are required to be tested at only one end. The minimum energy level of a single specimen was increased to reduce the probability of accepting plates with large variability.

Supplemental Notes:

Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

Report/Paper Numbers:

Project 12-31 FY'86

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Frank, K H
George, D A
Schluter, C A
Gealy, S
Horos, D R

Pagination:

67 p.

Publication Date:

1993

Serial:

NCHRP Report

Issue Number: 355
Publisher: Transportation Research Board
ISSN: 0077-5614

ISBN:

0309053536

Media Type:

Digital/other

Features:

Appendices (1) ; Figures; Photos; References (14) ; Tables

Old TRIS Terms:

Subject Areas:

Bridges and other structures; Construction; Data and Information Technology; Design; Geotechnology; Highways; Materials; Public Transportation; Railroads; I24: Design of Bridges and Retaining Walls; I34: Steels and Metals

Files:

TRIS, TRB, ATRI

Created Date:

Feb 4 1994 12:00AM