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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2023
ISBN: 978-0-8031-7737-6
... The microstructural development of Zircaloy-4 during recrystallization annealing has been studied in specimens that have undergone relatively small strains (approximately less than 0.15). Although important work has been completed to understand the formation of coarse grains in Zircaloy...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2023
ISBN: 978-0-8031-7747-5
... project teams avoid problems caused by excessive deformation. compressive deformation hot-applied rubberized asphalt (HRA) waterproofing bearing pressure temperature strain viscous fluid flow creep settlement ROOFING RESEARCH AND STANDARDS DEVELOPMENT: 10TH VOLUME 119 STP 1650, 2023...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2019
ISBN: 978-0-8031-7677-5
... In this investigation, diamond-shaped samples laser-cut from nitinol tubing were used to investigate the effect of variable amplitude fatigue loading. Alternating strain amplitudes of 0.30 %, 0.35 %, and 0.40 % were applied with periodic high strain amplitude of 0.70 %. The high strain...
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: 978-0-8031-7613-3
... The potential drop (PD) technique is one of the most common methods for determining crack growth; however, other factors can also change the resistance of the specimen, which may erroneously be interpreted as crack extension. In tough, ductile materials, plastic strain can cause a significant...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2011
ISBN: 978-0-8031-7511-2
.... The highest strains, in descending order were: (i) Lachman test (13.5 %), (ii) 20 N•m internal rotation load (10.6 %) and (iii) latero-medial knee movement (6.4 %). The Lachman-procedure not only produces anterior tibial translation (5.5 mm) but as well internal rotation (10.0°). The medial knee movement...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-3426-3
... The effects of applied strain on sealants exposed to outdoor weathering were examined for two sealant formulations, Sealants A and C. Both static and dynamic strain was applied to the sealants during the summer in a Gaithersburg, MD outdoor location. Both sealants exhibited a reversible change...
eBook Chapter
Series: ASTM Manuals
Publisher: ASTM International
Published: 2010
ISBN: 978-0-8031-7018-6
... at high stresses (or strain-rates) was proposed to be due to the cutting by dislocations of radiation-produced obstacles. In this stress (strain-rates) region, in-pile behavior was proposed to be identical to post-irradiation behavior. At intermediate stresses (strain-rates) a mechanism of radiation...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2009
ISBN-10: 0-8031-4514-4
ISBN: 978-0-8031-4514-6
...). The microstructure and mechanical properties change significantly in the transition from the unirradiated state up to fluxes of about 1×10 17 n·m −2 ·s −1 . zirconium irradiation thermal creep deformation strain fast neutron flux radiation damage point defects vacancy interstitial dislocation loops...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2005
ISBN-10: 0-8031-3493-2
ISBN: 978-0-8031-0756-4
... thermal to irradiation creep with increasing neutron flux. zirconium irradiation thermal creep deformation strain fast neutron flux radiation damage point defects vacancy interstitial dislocation loops climb Journal of ASTM International, July/August 2005, Vol. 2, No. 7 Paper ID...
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: 0-8031-2893-2
ISBN: 978-0-8031-2893-4
.... Coefficient of thermal expansion (CTE) micro mechanical test stress strain reduced temperature Han ZhuJ Wen-Ying LiJ Ampere A. Tseng,2 and Patrick Phelon2 Measurement of CTE at Reduced Temperature for Stressed Specimens Reference: Zhu, It., Li, W., Tseng, A. A., Phelon, P., "'Measurement of CTE...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2865-7
ISBN: 978-0-8031-2865-1
... and single crystal NiAl plates were considered, and the necessary strain functions for anisotropic plates were formulated. For isotropic plates and single-crystal NiAl plates, the maximum stresses generated in the test rig were within 2% of those calculated by plate theory when the support ring...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2850-9
ISBN: 978-0-8031-2850-7
... and polyethyleneterephthalate (PET) based thermoplastics as examples, our analysis revealed a range of similarities and differences in these two testing procedures. With either procedure — ASTM or ISO — similar results were obtained for material parameters such as tensile strength, tensile strain, and modulus of elasticity...
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: 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: 1998
ISBN-10: 0-8031-2609-3
ISBN: 978-0-8031-2609-1
... is a noncontact computer vision technique that simultaneously measures full-field in-plane surface displacements and strains, both linear and angular, with subpixel accuracy. Neural networks were used to predict the burst pressures of impacted pressure vessels based upon data obtained at less than approximately...
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: 0-8031-2403-1
ISBN: 978-0-8031-2403-5
... (no attached target) and real-time measurement of multiple, discrete points. The performance of the system is demonstrated with evaluations of the monotonic (and in some cases cyclic) stress-strain response for four different materials: aluminum, LEXAN, rubber and baboon tendon. The system has a measured...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2016-8
ISBN: 978-0-8031-2016-7
... Techniques have been developed by EDF's hot laboratory in Chinon for performing mechanical tests on irradiated materials. Some of these techniques aim to facilitate strain measurements, which are particularly difficult to perform on irradiated specimens at high temperatures or on subsize...