By D. E. McCabe, J. G. Merkle, K. Wallin
This new ASTM handbook introduces the idea that of the grasp Curve process so it may be understood and utilized by engineers who've had constrained publicity to elastic-plastic fracture mechanics and/or complicated statistical equipment. It addresses the sensible design-related challenge of defining the ductile-to-brittle fracture transition temperature of structural steels at once by way of fracture mechanics info. issues disguise: • history and old points • info validity standards imposed on attempt facts, and the variety of facts required to represent a statistically useable facts set for picking a reference temperature, To • try specimens that may be used to enhance legitimate KJc • Fixturing and try apparatus wishes • education of specimens (precracking and side-grooving) for checking out • try out machines, their mode of operation, and suggested specimen loading premiums • all the info had to calculate values of KJc • Scale parameter statistical equations for fabric checking out • moment alternative for calculating the To temperature that's useable whilst KJc information were generated at quite a few try out temperatures • How the variety of KJc values is dealt with utilizing the three-parameter Weibull version • info on options below research • short dialogue of vital issues inquisitive about at once employing grasp Curve fracture sturdiness info to the fracture-safety research of exact constructions
Read or Download An Introduction to the Development and Use of the Master Curve Method (ASTM Manual) (Astm Manual Series, Mnl 52) PDF
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Extra info for An Introduction to the Development and Use of the Master Curve Method (ASTM Manual) (Astm Manual Series, Mnl 52)
Read, D. , and Schwalbe, K. , "Interpretation of Fracture Toughness in the Ductile to Brittle Transition Region by Fractographic Observations," ES~SIEGF9, 1991, pp. 659-678.  Landes, J. D. and McCabe, D. , "Effect of Section Size on Transition Temperature Behavior of Structural Steel," ASTM STP 833, ASTM International, West Conshohocken, PA, 1984, pp. 378-392. , "The Scatter in K~c Results," Engineering Fracture Mechanics, Vol. 19, No. 6, 1984, pp. 1085-1093. org  Van Der Sluys, W. A.
Pre-cracking of 1T size specimens is expected to take about 1 x 105 to 2 x 105 cycles. On occasion, some steels will be encountered that do not develop fatigue pre-cracks using the above Km~x levels recommended. In such a case, test the particular steel for crack growth rate using ASTM Standard E 647 . 1). 64 m m of pre-crack at this Kmax level. The pre-cracking recommendations of Standard E 1921 have not been stated completely herein, since the pre-cracking provisions are undergoing revisions at the present time.
A. and Miglin, M. , "Results of MPC/JSPS Cooperative Testing Program in the Brittle-to-Ductile Transition Region," Fracture Mechanics, ASTM STP 1207, ASTM International, West Conshohocken, PA, 1994, pp. 308-324.  ASTM Standard E 1921-03, "Standard Test Method for Determination of Reference Temperature, To, for Ferritic Steels in the Transition Range," Annual Book of ASTM Standards, Vol. 01, ASTM International, West Conshohocken, PA, 1998. , "Master Curve Analysis of Ductile to Brittle Transition Region Fracture Toughness Round Robin Data (The EURO Fracture Toughness Curve)," V1-F Publications 367, Espoo Finland, 1998.