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modulus of rupture

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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
... properties of plastics Material(a) Tensile strength Elongation, % Modulus of elasticity Compressive strength Modulus of rupture Hardness MPa ksi GPa 10 6 psi MPa ksi MPa ksi Thermosets EP, reinforced with glass cloth 350 51 … 175 25 410 59 485 70 … MF, alpha...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... covered in the article “Elevated-Temperature Life Assessment for Turbine Components, Piping, and Tubing” in this Volume. Bulk Creep Behavior Some of the key material properties at high temperature are thermal expansion coefficient, stress rupture, elastic modulus, fatigue life, and oxidation...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
.... An extremely dry nylon may be rather brittle, while that same nylon exposed to 50% relative humidity for several days can be quite tough. However, the short-term tensile strength and modulus of the hydrated nylon will be somewhat reduced, as will the long term (creep rupture) strength of the material. Creep...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001602
EISBN: 978-1-62708-229-7
... shroud region. Columnar grains Creep Equiaxed grains Hot corrosion Udimet 500 UNS N07500 Creep fracture/stress rupture High-temperature corrosion and oxidation Thermal fatigue fracture Most gas turbine bucket failures are caused by a combination of factors because the loading...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006934
EISBN: 978-1-62708-395-9
... method, one of the most common to describe the material deformation and rupture time, is also discussed. Burgers power-law model creep failure Findley power-law model Larson-Miller parametric method material deformation polymers rupture time service life stress relaxation time-stress...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... of creep and stress-rupture behavior often normalizes the stress with the modulus. One way to avoid creep failure is to select the proper material based on parametric extrapolation of creep properties. In general, creep occurs in any material at a temperature where atoms become sufficiently mobile...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006867
EISBN: 978-1-62708-395-9
... for several days can be quite tough. However, the short-term tensile strength and modulus of the hydrated nylon will be somewhat reduced, as will the long-term (creep rupture) strength of the material. Creep deformation of the hydrated nylon will proceed more rapidly than it would in the dry material...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0090454
EISBN: 978-1-62708-220-4
.... In general, increased levels of crystallinity result in higher levels of molded-in stress and the corresponding warpage. The significant reduction in the modulus of the HDPE material, which accompanied the saturation of the resin with the aromatic hydrocarbon-based solvent, substantially decreased the creep...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006941
EISBN: 978-1-62708-395-9
... ultimately, one of fracture. If the material is a solid, then the simplest relationship between force and deformation is one in which the applied stress is proportional to the total resultant strain. The proportionality factor is referred to as a modulus of elasticity in the solid material; it may be used...
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
... modulus or modulus of elasticity; energy E elastic or storage modulus E viscous or loss modulus EAC environmentally assisted cracking EBSP electron backscattered pattern ECT equicohesive temperature EDM electric discharge machining EDS energy dispersive spectroscopy EDX energy-dispersive x-ray (analysis...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001814
EISBN: 978-1-62708-241-9
... Abstract A pressure vessel failed causing an external fire on a nine-story coke gasifier in a refinery power plant. An investigation revealed that the failure began as cracking in the gasifier internals, which led to bulging and stress rupture of the vessel shell, and the escape of hot syngas...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006933
EISBN: 978-1-62708-395-9
... components can occur in several different ways, including esthetic alteration, deformation/distortion, degradation, wear, and fracture. In the case of failure involving fracture, there are a number of common plastic failure mechanisms, such as ductile overload, impact, creep rupture, environmental stress...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006921
EISBN: 978-1-62708-395-9
... in transparency Creep-rupture from constant load (creep) Odor development Chemical or environmental stress cracking (ESC) Loss of adhesion Loss of mechanical seal (stress-relaxation) Shrinkage/warpage Cracking from cyclic loading (fatigue) Once the type of failure needing to be assessed...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006922
EISBN: 978-1-62708-395-9
.... These regions provide the polymer with a glass transition temperature. Semi-crystalline thermoplastics have general attributes which should be considered when selecting a material: Greater chemical resistance Greater modulus and strength Maintains some modulus after the glass transition temperature...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001515
EISBN: 978-1-62708-229-7
... of the lamination, (3) delayed hydride cracking, which extended the flaw through the wall of the tube, resulting in leakage, and (4) rupture of the tube by cold pressurization while the reactor was shut down. The comprehensive failure analysis led to a remedial action plan that permitted the reactor to be returned...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001581
EISBN: 978-1-62708-235-8
.... These observations are consistent with limitations (2000 Addendum to ASME Boiler and Pressure Vessel Code) on the use of cold worked austenitic stainless steels for elevated temperature service. Annealing Creep strength 304L UNS S30403 304H UNS S30409 304 UNS S30400 Creep fracture/stress rupture...
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
... low stress levels, both types of plastics exhibit similar first- and second-stage creep deformation. The onset of creep rupture may not occur within the service life of the product (let alone the test). As the stress level increases, first- and second-stage creep deformation rates remain relatively...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006932
EISBN: 978-1-62708-395-9
... ε s is the mold shrinkage, α m is the length dimension of the mold cavity, and α s is the sample length. They noted a decrease in mold shrinkage in metal-filled samples. Modulus, tensile strength, and elongation-to-rupture usually show a weak dependence on internal stress level. (Of course, only...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001275
EISBN: 978-1-62708-215-0
... dogbone specimens specified by ASTM D 638-82a. This pipe material had a yield strength of 21.3 MPa (3.08 ksi) and an elongation at failure of >500%. The modulus was estimated to be 1034 MPa (150 ksi). These values all fall within the published ranges for these materials. Fracture Toughness...