ESDU 81011:2013

$62.40

Fatigue Crack Propagation in Low and Medium Strength Low Alloy Steel Plate, Bar and Forgings

Published By	Publication Date	Number of Pages
ESDU	2013-02	23

Guaranteed Safe Checkout

Category: ESDU

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

Constant amplitude fatigue crack propagation rate
(da/dN) data are provided for a wide range of low and
medium strength low alloy steels in the form of plate, bar and
forgings. The ultimate tensile strength of the materials is less
than 850 MN/sq m and their thicknesses range from 5 to 76 mm. The
data have been derived from tests conducted in laboratory air at
room temperature and mean da/dN curves are presented in
terms of the stress intensity factor range and the 0.2 per cent
proof stress of the material. Curves are drawn either side of the
mean curve that indicate limits of scatter of 90 per cent of the
data. The range of da/dN covered is from 10E-5 m/cycle to
10E-9 m/cycle. The effects of variations in mean stress, specimen
size and thickness, and material yield strength are discussed.
Details of all the materials and types of test specimen are
tabulated and summary da/dN curves that compare the
different groups of materials are given. A simple worked example
illustrates how the data may be used in practice.