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eBook Chapter
Series: ASTM Manuals
Publisher: ASTM International
Published: 2016
ISBN: 978-0-8031-7068-1
... of material deformation, strain, and stress and discusses the basic parameters of elasticity, including rudimentary porous and thermal-related parameters. Only a minimal amount of mathematical development is provided, enough to understand the basic concepts, with references provided to sources in which...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7529-7
... Under neutron irradiation, recrystallized zirconium alloys, used as structural materials for Pressurized Water Reactor (PWR) fuel assemblies, undergo stress-free growth which accelerates for high irradiation doses. This acceleration is correlated to the formation of c-component vacancy...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2012
ISBN: 978-0-8031-7515-0
... methods used to develop Optimized ZIRLO from Standard ZIRLO. The previous paper only outlined the experimental methods used to determine irradiation creep. This paper presents the detailed methods used to determine in-reactor creep and growth. In additio n, in-reactor creep stress dependence in tension...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2011
ISBN: 978-0-8031-7514-3
... is used for engineering design in a safe and reliable manner. plastic pipe strength design stress thermoplastic Stephen Boros1 Reprinted from JAI, Vol. 8, No. 9 doi:10.1520/JAI102850 Available online at www.astm.org/JAI Long-Term Hydrostatic Strength and Design of Thermoplastic Piping...
eBook Chapter
Series: ASTM Manuals
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-7018-6
... A review is given of the comprehensive model developed in the 1960s at the Bettis Atomic Power Laboratory to explain the creep of Zircaloy during neutron irradiation and applied to fuel to element analysis and design. The in-pile softening observed at low stresses was hypothesized to be due...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2005
ISBN-10: 0-8031-3493-2
ISBN: 978-0-8031-0756-4
... cladding has significant waterside corrosion and hydrogen uptake. Test results to-date indicate good creep ductility for both claddings in the 360–400°C and 160–250 MPa (hoop-stress) regime. Partial recovery of radiation hardening may have occurred during the long tests at 400°C, which led to improved...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-2899-1
ISBN: 978-0-8031-2899-6
... describes the geometry and fracture behavior of pre-Northridge and of unreinforced post-Northridge WSMF connections. The origin, size, and geometry of the fracture initiating defects are discussed, as are the stresses and strains, and the materials at the fracture initiation sites. The factors needed...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2880-0
ISBN: 978-0-8031-2880-4
... Plates of both square and round geometries are tested to determine the strength and fatigue properties of ceramics under multiaxial stresses. The necessary tolerances required for accurate testing are not well documented in published literature. The stresses in square and round plates subjected...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2893-2
ISBN: 978-0-8031-2893-4
... are stressed, and at least one characteristic dimension of specimens is in the order of mm, sub mm or microns. CTE values are determined based on their relation with the measured magnitude of stress jump resulting from the change in temperature. Their comparison with the CTE values reported by other sources...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2895-9
ISBN: 978-0-8031-2895-8
... of temperatures (300 to 400°C), stresses (120 to 250 MPa), and strain rates (2 ∙ 10 -7 to 2 ∙ 10 -3 s -1 ) on as-received and hydrided specimen. The results emphasize: • Hydrogen in solid solution induces a softening of the material. The TEM observations have revealed identical structure of dislocations...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-3458-4
ISBN: 978-0-8031-3458-4
... A new PC-based stress measuring system was developed for measuring edge-stress in tempered glass. The system is based on the Spectral-Contents Analysis method, modified to permit the very high-speed data acquisition needed for measuring stress in a moving item, within a region where the stress...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2878-9
ISBN: 978-0-8031-2878-1
... The measured irradiation creep strain ε in structural materials is usually fitted with the equation: E/σ B 0 dpa+DS, where σ is the applied stress, S the void swelling, and B 0 and D are the material parameters. The stress dependence of swelling is sometimes described using the equation...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2850-9
ISBN: 978-0-8031-2850-7
... (PA) polyethyleneterephthalate (PET) tensile properties stress strain tensile strength break Young's modulus elasticity system compliance grips ASTM ISO design test Nanying JiaI and Val A. Kagan2 Interpretations of Tensile Properties of Polyamide 6 and PET Based Thermoplastics Using...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2850-9
ISBN: 978-0-8031-2850-7
... specimen heat capacity cause the sample temperature to be lower than that of the surrounding atmosphere. Temperature gradients along the length of the furnace can intensify the temperature difference. Furthermore, stress applied to specimens in tension can lead to erroneous Tg values. Specimen...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2499-6
ISBN: 978-0-8031-2499-8
... the hardening kinetics by decreasing the yield stress, increasing the linear hardening coefficient, and enhancing the dynamic recovery kinetics, especially in the hoop direction. It has no effect on the strain anisotropy. Hydrogen increases the creep resistance. The creep rate of the hydrided material decreases...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2865-7
ISBN: 978-0-8031-2865-1
... A test apparatus for measuring the multiaxial strength of circular plates was developed and experimentally verified. Contact and frictional stresses were avoided in the highly stressed regions of the test specimen by using fluid pressurization to load the specimen. Both isotropic plates...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2868-1
ISBN: 978-0-8031-2868-2
... This paper broadly reviews the stress-based, strain-based, and crack growth aproaches to fatigue life prediction, and it attempts to suggest some choices and variations of these that might enhance their inclusion in undergraduate education and their more routine use by practicing engineers...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2614-X
ISBN: 978-0-8031-2614-5
... laboratory heats of: Fe-13.5Cr-15Ni, Fe-13.5Cr-35Ni, Fe-13.5Cr-15Ni- 0.18Ti, and Fe-16Cr. At 330°C, irradiation creep was shown to be linear with fluence and stress. There was little or no effect of cold-work on creep under these conditions at all temperatures investigated. The HT9 demonstrated a large...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2480-5
ISBN: 978-0-8031-2480-6
... elastomers TPE Finite Element Analysis FEA glazing seal element node stress strain Kevin M. Gase,1Laura L. HudacekI and Goran T. Pesevski1 Finite Element Analysis As A Design Tool For Thermoplastic Vulcanizate Glazing Seals REFERENCE: Gase, K. M., Hudacek and Pesevski, G. T., "Element Analysis...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2412-0
ISBN: 978-0-8031-2412-7
... A model to predict cleavage failure of precracked bodies in the transition region for steels was recently proposed by the author. It is based on the concept that the stress-controlled fracture of a weak link triggers the failure of the entire body. The stress that triggers fracture is predicted...