SYMPOSIA PAPER Published: 01 January 1979
STP34945S

Experimental Determination of for Hollow Rectangular Tubes Containing Corner Cracks

Source

This research used the fatigue crack growth rate experimental method to obtain KI for an initial circular corner crack in a hollow rectangular tube subjected to pure bending. Reference crack growth rate data were obtained using compact tension (CT), single edge notch (SEN) and four-point (4-pt) bend specimens. Three mild steel tube height-to-width ratios, h/w (2/3, 1, and 3/2) were tested. KI was obtained for both top face and side face cracks within 30 percent experimental deviation for the three h/w ratios. Least square conservative upper bound equations were obtained. The conservative upper bound results are pro|posed as general KI expressions applicable to design situations.

Author Information

McDermott, ME
University of Iowa, Iowa City, Iowa
Stephens, RI
University of Iowa, Iowa City, Iowa
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Details
Developed by Committee: E08
Pages: 719–733
DOI: 10.1520/STP34945S
ISBN-EB: 978-0-8031-4746-1
ISBN-13: 978-0-8031-0364-1