TWA 11
Creep Crack Growth
The overall objective of this TWA was to provide a compatible body of technical information on experimental procedures and data evaluation in creep crack growth as a basis for the development of national and international standards. The VAMAS initiative provided the opportunity for a collaborative framework within which various national and international programmes on creep crack growth were brought together in order to harmonise the approach to measurement and interpretation of creep crack growth rates in advanced engineering applications.
Standards that benefited from this work included ASTM E1457-15, "Standard test method for measurement of creep crack growth rates in metals" and a "Guide to methods of assessment of the influence of crack growth on the significance of defects in components at high temperature" was published as BSI PD 6539:1994 (now replaced by BS 7910:2013).
A special edition of "Materials at High Temperature" on creep crack growth was published in 1992 as a reference volume describing the state of the art in measurement, interpretation and usage of creep crack growth data. A significant feature is papers describing the application of creep crack growth data to predict component lifetimes
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