... elastic-plastic fracture calibration functions arcshaped bend specimen References “ Standard Test Method for Crack-Tip Opening Displacement (CTOD) Fracture Toughness Measurement ,” ASTM E 1290-99, ASTM Annual Book of Standards , Vol. 03.01 , 1999 . “ Terminology ,” ASTM E 1823-93, ASTM...

... of the round robin or by other researchers during the past two years, and proposed corrections are presented that hopefully will address these shortcomings. 28 09 2000 22 03 2001 fracture mechanics elastic-plastic fracture dynamic fracture normalization method J -integral crack...

... to predict the failure loads, in good agreement with test loads. Discussions are made on specimen size effects and crack length measurement in the presence of crack tip tunneling. 26 02 1997 29 12 1998 fracture mechanics elastic-plastic fracture crack tip opening displacement (CTOD...

... with 0% B , 25% B and 50% B double side grooving, respectively. 31 03 1993 05 02 1997 fracture mechanics elastic-plastic fracture η pl factor determination side groove influence load-displacement records J -integral load separability properties cracks References...

..., and N constants and evaluating the unknowns at three calibration points in the test. The method is studied for a HY-80 steel for four test temperatures and 50 mm-width, 25 mm-thickness side-notched single-edgebend specimens. KEYWORDS: elastic-plastic fracture, J-integral, fracture toughness, J-R curve...

...I Gu An engineering method of elastic-plastic fracture analysis is suggested for plane-strain specimens under tension. The condition for an increment of crack extension is set by a critical increment of crakc tip opening displacement (CTOD). The CTOD increment divided by the incremental crack...

.... proposed as a nnnl~nearelastic parameter which characterizes the rate of change o f energy per unit of crack extension [ 1 4 ] .has k e n found to be equally useful for characterizing elastic-plastic fracture. In thih approach I can be evaluated from the expression where the total energy is considered...

...EL Santarelli; JE Perez Ipiña In elastic-plastic fracture toughness of the three-point bend specimens (3P-SENB) test, fracture toughness is obtained as a function of the energy put into the specimen, and it is measured from the area under the load versus load-line displacement record. A fraction...

.... 231 - 245 . Tanaka , T. , Hoshide , T. , and Nakata , M. , “ Elastic-Plastic Crack Propagation under High Cyclic Stresses ,” in Elastic-Plastic Fracture: Second Symposium , ASTM STP 803 , American Society for Testing and Materials , Philadelphia , 1983 , pp. II 708-722...

...JE Perez Ipiña; EL Santarelli In elastic-plastic fracture toughness tests of three-point single edge notch bend (3P-SENB) specimens, very ductile materials suffer significant distortions from their initial geometrical configuration, producing large rotation angles of the arms and causing...

... for automatic crack length measurement techniques in the evaluation of J-R curves. 22 09 1987 04 04 1988 elastic-plastic fracture J -integral fracture toughness J -resistance testing key curve direct method A508 steel References Fracture Toughness Evaluation by R-Curve Methods...

.... The major conclusion is that an alternating-current technique with a properly chosen excitation frequency can be used to detect crack growth in rapidly loaded specimens. Additional comments on developing an improved system are presented. 06 03 1987 04 09 1987 elastic-plastic fracture...

... specimen. An accurate evaluation of the intergranular mode fracture toughness is also discussed. 24 03 1986 11 12 1986 brittle fracture elastic-plastic fracture fracture toughness J -integral ductile-brittle transition size effect cleavage fracture intergranular fracture ductile...

... crack growth resistance R curve test for elastic-plastic fracture toughness J Ic determination are compared. Various formulations for plane-strain fracture toughness K Ic and J Ic estimation are also compared. Comparison of the test methods indicates that, for ductile steels, the multiple identical...

... of a critical value of the J integral, the slope of the J integral resistance curve, and the tearing modulus from a single specimen. crack propagation alloy steels tear strength J integral elastic-plastic fracture stable crack growth size effect References “ Minutes of Task Group E24.01.09...