Brittle Fracture Studies

Videon, F.F.; Barton, F.W.; Hall, W.J.

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https://hdl.handle.net/2142/14012 Copy

Description

Title

Brittle Fracture Studies

Author(s)

• Videon, F.F.
• Barton, F.W.
• Hall, W.J.

Issue Date

1962-08

Keyword(s)

• brittle fracture propagation
• Residual stress
• Plates, Iron and steel.

Abstract

This investigation was undertaken to study the propagation of brittle fractures in wide steel plates containing a residual strain field. The purpose of this technical progress report is to present the detailed test data along with pertinent discussion. In Part A are presented the results of eight tests of six-foot wide prestressed steel plates in which the residual stress field was produced by welding tapered slots cut in the edges of the specimens 0 In Part B are presented the test data from nineteen tests of two-foot wide centrally notched plates, a majority of which had a longitudinal butt weld. Measurements of surface strains, crack speed, and specimen temperature were made during the fabrication and testing of selected specimens. The effects of residual and applied stress fields on fracture~ speed, strain field during propagation, and fracture texture are discussed herein. Also, a number of observations regarding the effects of residual stress, thermal strain cycling and notch geometry on fracture initiation parameters are presented.

Publisher

University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.

Series/Report Name or Number

Civil Engineering Studies SRS-255

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/14012

Sponsor(s)/Grant Number(s)

• Ship Structure Committee. Bureau of Ships, U.S. Navy. Project SR-155
• Bureau of Ships, U.S. Navy. Contract NObs 65790, Index No. S-R 0090301 Task 1991

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