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Keywords: dynamic fracture toughness
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-2899-1
ISBN: 978-0-8031-2899-6
... The dynamic fracture toughness of a reactor pressure vessel steel was investigated using small specimens. Precracked Charpy-size SE(B) specimens and circumferentially cracked round bars (CRB) loaded in tension were used to investigate the dynamic fracture toughness of an A533, Gr. B steel plate...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2888-6
ISBN: 978-0-8031-2888-0
... of dynamic fracture toughness tests. Successful application of Normalization involved using multiple specimens with varying ductile crack growth to establish the correct form for the plasticity function. The accuracy of the measured J Id was verified by comparing with multi-specimen J Id values...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2878-9
ISBN: 978-0-8031-2878-1
... and the material's yield strength, has been investigated. dynamic fracture toughness precracked Charpy-V specimens impact loading rate loss of constraint reference temperature irradiation-induced embrittlement Enrico LuconI and Rachid Chaouadi 1 Radiation Damage Assessment by the Use of Dynamic...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2864-9
ISBN: 978-0-8031-2864-4
... by measurement of the stretch zone width (SZW). dynamic fracture toughness ductile crack initiation single specimen method J-integral acoustic emission instrumented impact testing Hans-W. Viehrig,l Juergen Boehmert,2Holger Richter,3 and Matti Valo 4 Use of Instrumented Charpy Test for Determination...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2864-9
ISBN: 978-0-8031-2864-4
... for determining dynamic fracture toughness properties. Instrumented impact experiments combining with magnetic emission measurement have been performed on pre-cracked Charpy-V specimens of E420 C and QStE 690 TM high strength steels. Critical values of stress intensity factor (K Id , K Ji ) related...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2868-1
ISBN: 978-0-8031-2868-2
... near the crack tip. The local approach is applied to the dynamic fracture toughness evaluation. It is shown that the brittle fracture resistance evaluated in terms of the Weibull stress, an integrated stress over a highly stressed region near the crack tip, is a material property independent...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-1996-8
ISBN: 978-0-8031-1996-3
... of the standard Charpy specimen. Second, the Charpy testing technique causes more variation than the standard SE(B) K Id tests within the transition region. Duplex stainless steel Ferralium 255 Dynamic fracture toughness Impact toughness Fracture safety assessment MarjorieAnn E. NatishanI and Robert...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1990-9
ISBN: 978-0-8031-1990-1
... Dynamic fracture toughness tests with an instrumented inverse geometry impact hammer have been made on small, side-grooved, prefatigued Charpy-type specimens (10 by 10 by 55 mm) with varying crack depth. The a/W was approximately 0.05, 0.1, 0.3, and 0.5. Prefatiguing was performed with wider...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1478-8
ISBN: 978-0-8031-1478-4
... The influence of copper and phosphorus content on Charpy-V-notch impact energy, on dynamic fracture toughness, and on radiation hardening recovery of tensile and hardness properties by postirradiation annealing at different temperatures was explored for one commercial heat and six laboratory...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1429-X
ISBN: 978-0-8031-1429-6
.... A procedure to measure initiation, propagation, and arrest toughnesses of nuclear pressure vessel steels up to service temperature with CPB specimens is introduced. dynamic fracture toughness crack arrest upper-shelf fracture toughness A533-B steel pressure vessel steel Hervd Couque, ~Robert J...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1429-X
ISBN: 978-0-8031-1429-6
... A simple, reliable, and repeatable method has been developed for determining dynamic plane-strain fracture toughness using an on-specimen strain gage. This extends the range of the British Standard Method for Determination of the Dynamic Fracture Toughness of Metallic Materials (BS 6729...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0972-5
ISBN: 978-0-8031-0972-8
... on the static tests. The results show little change in dynamic fracture toughness for this material with increasing loading rate. The experimental techniques show promise for further dynamic studies. crack-tip opening displacement crack-tip opening angle dynamic fracture toughness tool steel laser...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0472-3
ISBN: 978-0-8031-0472-3
..., and the maximum amplitude can be independently adjusted over an order of magnitude (20 to 200 MPa m 1/2 ). The new experimental procedure has been used to measure the dynamic fracture toughness of 4340 steel (HRC 50) at three loading rates. Comparison of the dynamic results with the value of the static toughness...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0465-0
ISBN: 978-0-8031-0465-5
.... In this paper, what is mainly described is dynamic fracture toughness, low cycle fatigue behavior, and fracture surface appearances of hot forging die steels. A couple of quantitative analyzed examples of fracture toughness and temperature by use of stretched zone width measurement for hot forging die failure...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1985
ISBN: 978-0-8031-0592-8
...); assessments included the effects of alloy composition (12Cr versus 9Cr) and melt processing (Electroslag Refining (ESR) versus Argon Oxygen Decarburization (AOD)) on radiation resistance. Fracture resistance change was judged from pre versus postirradiation notch ductility and dynamic fracture toughness...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1980
ISBN-10: 0-8031-0317-4
ISBN: 978-0-8031-0317-7
... arrest dynamic stress intensity fracture criterion fracture properties dynamic fracture toughness J.F. Kalthoff,^J. BeinerV S. Winkler,^ and W. Klemm^ Experimental Analysis of Dynamic Effects in Different Crack Arrest Test Specimens REFERENCE: Kalthoff, J. F., Beinert, J., Winkler, S., and Klemm...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1980
ISBN-10: 0-8031-0317-4
ISBN: 978-0-8031-0317-7
... velocity up to ˙a ≈ 100 m/s and then increases sharply above 100 MNm −3/2 at ˙a > 1000 m/s. crack propagation crack velocity dynamic fracture toughness double cantilever beam specimen high-strength steel axial force Z. Bilek' Some Comments on Dynamic Crack Propagation in a High...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1980
ISBN-10: 0-8031-0363-8
ISBN: 978-0-8031-0363-4
... tapered double cantilever beam (TDCB) specimen), which were studied experimentally by Kalthoff, Beinert, and Winkler, were then analyzed with this updated fracture dynamic code. Using the experimentally determined dynamic fracture toughness, K ID , versus crack velocity, ˙a , relation, the RDCB...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1979
ISBN-10: 0-8031-0364-6
ISBN: 978-0-8031-0364-1
... response of a strain gage located near the crack tip in conjunction with a simple static analysis. crack propagation dynamic fracture dynamic photoelasticity dynamic finite element analysis dynamic fracture toughness crack arrest S. Mall,^ A. S. Kobayashi,^ and Y. Urabe^ Dynamic Photoelastic...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1974
ISBN-10: 0-8031-0738-2
ISBN: 978-0-8031-0738-0
... The dynamic fracture toughness was determined for two titanium alloys (Ti-6A1-4V and Ti-6A1-6V-2Sn) from different suppliers and in various heat-treated conditions. The strain-rate effect associated with the dynamic test is shown to increase the fracture toughness for all the alloys...