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plane strain fracture toughness

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Published: 01 June 2019
Fig. 10 Dimension of center crack tension specimen for plane-strain fracture toughness test, dimensions in mm. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047105
EISBN: 978-1-62708-225-9
... these orientations. For example, reduction of area averaged 4% in the S-T orientation as opposed to 57% in the L-T, while K Ic (plane-strain fracture toughness) averaged 66 MPa m (60 ksi in. ) in S-T and 104 MPa m (95 ksi in. ) in L-T. A composite photomicrograph ( Fig. 1d ) taken...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003513
EISBN: 978-1-62708-180-1
... mat = δ I ( K r − ρ ) 2 the optimum plane-strain fracture toughnesses are: (Eq 42)   δ mat aw = 0.508   mm  ( 0.0200  in . ) δ mat pwht = 0.134   mm  ( 0.00529  in . ) Level 2b, BS 7910 The maximum stress...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006910
EISBN: 978-1-62708-395-9
... J.I. , J-R Curve Determination of Magnesium Hydroxide Filled Polypropylene Using the Normalization Method , J. Mater. Sci. , Vol 37 (No. 8 ), April 2002 , p 1635 – 1644 10.1023/A:1014944729912 41. ASTM D5045. Standard Test Methods for Plane-Strain Fracture Toughness and Strain Energy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001142
EISBN: 978-1-62708-228-0
... − 0.   0.25 ξ 2 + 0.6 ξ 4 ) sec ( π ξ / 2 ) ( π ξ / 2 ) σ:gross stress (MPa) a:crack length (mm) w: width of specimen (mm) Fig. 10 Dimension of center crack tension specimen for plane-strain fracture toughness test...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001272
EISBN: 978-1-62708-215-0
... the bolt hole diameter) that is about 25 mm (1 in.) long. Using an approximation published by Barsom and Rolfe ( Ref 3 ), the plane strain fracture toughness (K Ic ) is estimated to be about 65 MPa m (60 ksi in. ). If this value of K Ic is used with the pre-existing crack length of 25...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... brittle fracture-surface orientation in tensile loading and the difference in fracture toughness for plane-stress and plane-strain loading (see the section “Fracture Mechanics” in later paragraphs). The difference in plane-stress and plane-strain loading is also important in understanding differences...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006919
EISBN: 978-1-62708-395-9
... 35. Vincent P.I. , Impact Tests and Service Performance of Thermoplastics , Plastics Institute , 1970 36. “ Plane-Strain Fracture Toughness of Metallic Materials ,” E 399-83, Annual Book of ASTM Standards , Vol 03.01 , American Society for Testing and Materials , 1987 , p 680...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001111
EISBN: 978-1-62708-214-3
... in compact tension (ASTM E399) test specimens of the casualty plate, with a plane-strain fracture toughness (K Ic ) of 60 MPa m (55 ksi in. ) at 14°C (58°F), the temperature of brittle fracture in the bridge ( Table 1 ). Furthermore, the same network was observed, but to a lesser extent...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003530
EISBN: 978-1-62708-180-1
..., consideration of the plane strain state of stress is significant in understanding macroscale brittle fracture surface orientation in tensile loading and the difference in fracture toughness for plane stress and plane strain loading (see the section “Fracture Mechanics” in later paragraphs). The difference...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... to the outside of the specimen, decreasing the widths of the shear lips. When the minimum value of plane-strain toughness ( K Ic ) is reached, the shear lips have very small width. The local state of stress created by a load on a component geometry may cause crack propagation (i.e., critical fracture...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006928
EISBN: 978-1-62708-395-9
... Measuring the dynamic mechanical properties of plastics using three-point bending D5026 6721-5 Measuring the dynamic mechanical properties of plastics in tension D5045 572 Plane-strain fracture toughness and strain energy-release rate of plastic materials D5083 3268 Tensile properties...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... or alternatively, by indicating the presence of shear lips on the fracture surface. Fig. 13 Schematic of variation in fracture toughness and macro-scale features of fracture surfaces for an inherently ductile material. As section thickness ( B ) or preexisting crack length ( a ) increases, plane strain...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0006548
EISBN: 978-1-62708-180-1
... Kapp apparent fracture toughness Kc plane-stress fracture toughness or critical stress intensity kf fatigue notch factor KI Mode I stress-intensity factor KIc plane-strain fracture toughness KISCC threshold stress intensity for stress-cor- rosion cracking Kr ratio of applied stress-intensity factor...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006865
EISBN: 978-1-62708-395-9
... D.T. , Polymer Microscopy , Chapman & Hall , 1987 10.1007/978-94-009-3139-8 22. ASTM D5045, Standard Test Methods for Plane-Strain Fracture Toughness and Strain Energy Release Rate of Plastic Materials , ASTM International , West Conshohocken, PA , 2007 23. Hayes M.D...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
... MnS inclusions and smaller spheroidal carbides). Fracture initiates at (large) MnS inclusions, followed by microscale strain localization on planes of high shear stress. These planes randomly contain smaller carbide particles, which subsequently nucleate voids. This is referred to as void sheet...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... MnS inclusions and smaller spheroidal carbides). Fracture initiates at (large) MnS inclusions, followed by microscale strain localization on planes of high shear stress. These planes randomly contain smaller carbide particles, which subsequently nucleate voids. This is referred to as void sheet...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... , at the crack tip, reaching a critical value, K Ic , for the plane-strain fracture toughness, which is considered to be a material property ( Ref 22 ). Linear elastic fracture mechanics properties per ASTM D5045 are appropriate for highly cross-linked thermosets or glassy thermoplastics incapable...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046210
EISBN: 978-1-62708-235-8
... fatigue crack. The scale markings are 0.1 in. Fracture Mechanics Approach In principle, the stresses can be computed by measuring the final crack size and shape and noting that at fracture the stress intensity parameter is equal to the plane-strain fracture toughness K Ic . The problem...