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- W2023278595 abstract "Abstract Fatigue pre-cracked Charpy specimens are sometimes used to measure the fracture toughness of steels. For most steels the dimensions of the Charpy specimens are insufficient to prevent significant plastic yielding ahead of the crack during a test. A feature of the tests is that stable crack growth results in significant crack front curvature. Side-grooving compact tension specimens has been found to inhibit crack front curvature and promote straight fronted crack growth. This paper investigates the effect of side-groove depth on the fracture behaviour of pre-cracked Charpy specimens. Elastic three-dimensional finite element analyses have been performed to assess the effect of side-groove depth on the compliance, stress state and stress intensity factor. The load displacement behaviour of Charpy specimens has been measured to determine the effect of side-groove depth on the limit load and fracture resistance. Using the finite element and experimental results an expression is derived for calculating the fracture resistance of side-grooved Charpy specimens. The expression is used to determine the critical fracture resistance of 1CrMoV steel at two temperatures using Charpy specimens with and without side-grooves." @default.
- W2023278595 created "2016-06-24" @default.
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- W2023278595 date "1982-09-01" @default.
- W2023278595 modified "2023-10-17" @default.
- W2023278595 title "The influence of side-grooving on pre-cracked Charpy specimens in bending" @default.
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- W2023278595 doi "https://doi.org/10.1016/0308-0161(82)90019-9" @default.
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