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A compact tension specimen (CT) is a type of standard notched specimen in accordance with ASTM [1] and ISO [2] standards. Compact tension specimens are used extensively in the area of fracture mechanics and corrosion testing, in order to establish fracture toughness and fatigue crack growth data for a material.
Download as PDF; Printable version; In other projects ... 9.81 x numerical HV), P is the indentation load in N (typically 30 kgf is used) and T is the total crack ...
The important characteristic of these tests is that the strain rate is low, for example extension rates selected in the range from 10 −8 to 10 −3 s −1.The selection of the strain rate is very important because the susceptibility to cracking may not be evident from result of tests at too low or too high strain rate.
Rainflow counting identifies the closed cycles in a stress-strain curve. The rainflow-counting algorithm is used in calculating the fatigue life of a component in order to convert a loading sequence of varying stress into a set of constant amplitude stress reversals with equivalent fatigue damage.
Created Date: 8/30/2012 4:52:52 PM
The specimen is then loaded monotonically. A plot of the load versus the crack opening displacement is used to determine the load at which the crack starts growing. This load is substituted into the above formula to find the fracture toughness . The ASTM D5045-14 [4] and E1290-08 [5] Standards suggests the relation
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Background Chlorine and caustic soda are produced at chlor-alkali plants using mercury cells or the increasingly popular membrane technology that is mercury free and more energy-