Abstract
In order to obtain the crack growth resistance curve, a typical fracture test must measure the load vs. crack extension (F-Δa) curve. Apart from the basic measurement of the load vs. load-line displacement (F-vLL) curve, additional instruments or tedious test operations such as partial unloading are necessary to measure the amount of crack extension. This paper proposed a novel method of calculating the F-Δa curve directly from the F-vLL curve, in which no additional instrument or test operations are required. The proposed method can be easily applicable to these non-standard specimens. Several examples of C(T) and M(T) specimens are adopted to verify this method. Thus, this method is expected to simplify these available standards for measuring crack length.
Published Version
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