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eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2023
ISBN: 978-0-8031-7733-8
... the strength of whole-specimen configurations. machine learning fatigue mechanical properties microstructure porosity damage very high cycle fatigue hybrid manufacturing heat-affected zone machining forging 262 ADVANCES IN ACCELERATED TESTING AND PREDICTIVE METHODS IN CREEP, FATIGUE...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7712-3
... Asphalt shingle roofs are the most common roof covering in the United States. Major reasons for asphalt shingle popularity are cost, selection, convenience, and availability. Shingle roofs are routinely assessed to determine whether they exhibit damage. The need exists in the U.S. roofing...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2019
ISBN: 978-0-8031-7667-6
...), the first test pile experienced significant damage (PDA BTA = 69 %) and was extracted. Subsequent test piles were driven with more caution as well as with thicker pile cushions; the measured as well as predicted stresses were even smaller for the piles. Still, some test piles experienced minor damage...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2017
ISBN: 978-0-8031-7639-3
... Fatigue life predictions associated with the S-N curve have been largely based on empiricism or unfounded theories, or both, due to the complexity involving multiple variables such as fatigue life, applied stress, number of loading cycles, and stress ratio. A damage model proposed by Palmgren...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2016
ISBN: 978-0-8031-7619-5
... solvents is tested using snails as an example related to pest control. snail pest damage crop sustainable solvent PESTICIDE FORMULATION AND DELIVERY SYSTEMS: 35TH VOLUME 15 STP 1587, 2016 / available online at www.astm.org / doi: 10.1520/STP158720140131 Karen Guzma´n,1 Claudia Mart´ nez,1...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2013
ISBN: 978-0-8031-7548-8
.... Since the project site was located in a seismically-active area, design engineers were concerned about the ability of the multi-component GCL to withstand seismic loads. To assess the potential for damage to the GCL when subjected to seismic loads, a cyclic shear test of the proposed liner cross-section...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2013
ISBN: 978-0-8031-7533-4
... for the next five years. accelerator co-irradiation damage helium ion microstructure Effects of Radiation on Nuclear Materials: 25th Volume STP 1547, 2012 Available online at www.astm.org DOI:10.1520/STP103948 P. Trocellier,1 Y. Serruys,1 S. Miro,1 E. Bordas,1 H. Martin,1 L. Beck,1 S. Pellegrino...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2013
ISBN: 978-0-8031-7533-4
... the experiments that have been yet carried out involving accumulation damage (dose per atom (dpa)) and simultaneous He or He and H ion-beam irradiation. These experiments mainly concern pure α-Fe, model Fe–Cr alloys and Fe–Cr oxide-dispersion-strengthened (ODS) alloys. Finally, we will conclude by showing...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2011
ISBN: 978-0-8031-7525-9
... Creep Fatigue knowledge is necessary for meaningful reliability assessment of existing power generating plant because cyclic operation of an aging power plant fleet requires better understanding of factors affecting damage initiation and propagation, as well as technologies and methods...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2011
ISBN: 978-0-8031-7525-9
... as adopted by ASME Code Case N-47 and API579/ASME FFS, and the results are discussed. probabilistic analysis creep-fatigue interaction crack growth damage Reprinted from JAI, Vol. 8, No. 5 doi:10.1520/JAI103690 Available online at www.astm.org/JAI Zhigang Wei,1 Fulun Yang,2 Henry Cheng,2...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2005
ISBN-10: 0-8031-3493-2
ISBN: 978-0-8031-0756-4
... pilgering damage surface defects tool design tool optimization computational model numerical modeling spring back finite element method Journal of ASTM International, March 2005, Vol. 2, No. 3 Paper ID JAI12334 Available online at www.astm.org Makoto Harada,1 Akira Honda,2 Shiro Toyoshima3...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3465-7
ISBN: 978-0-8031-3465-2
...-tension fatigue. Resulting stress-life curves for the 45° off-axis carbon fibre-reinforced epoxy were shallow, resulting in a large amount of scatter. Damage was monitored using strain gauge rosettes in the loading and transverse directions, as well as perpendicular to the fibres. Hysteresis loops were...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3456-8
ISBN: 978-0-8031-3456-0
... Interrupted fretting fatigue experiments were performed to demonstrate the capabilities of a confocal microscope related to characterizing fretting damage and to correlate that damage with cycles to failure. Fretting damage was established at stepped down levels of 100% (baseline), 80%, 60%, 40...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3467-3
ISBN: 978-0-8031-3467-6
... of the failed specimens indicated that cracks could be mainly attributed to out-of-phase thermomechanical fatigue in the case of ferritic grades and to in-phase thermomechanical fatigue in the case of austenitic grades. A Taira type damage criterion is proposed, which correlates the amplitude...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2890-8
ISBN: 978-0-8031-2890-3
... for prototypes and fatigue test articles provided by editing non-damaging cycles from measured loading spectra. The technique involves testing uniaxial fatigue coupons using a fully reversed periodic overload of near-yield magnitude with a fixed period in an otherwise constant amplitude sequence of high stress...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2862-2
ISBN: 978-0-8031-2862-0
... Combined moisture cycling and thermal cycling environments are known to create damage, such as cracking of material near exposed surfaces and edges, in many new materials intended for high-temperature service. Material models suggest the damage mechanisms; these models are used to design tests...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2852-5
ISBN: 978-0-8031-2852-1
... provides the stability of positional atom disorder in Ti 49 Ni 51 low temperature irradiation damages of titanium nickelide can be well explained within the Gibbon statistical scheme. titanium nickelide single crystal irradiathion fast neutron amorphous atomic disordering damage Sergey E...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2601-8
ISBN: 978-0-8031-2601-5
... in the characterization. Behavior of the two composite systems is compared and checked for consistency using a micromechanical model. polymer matrix composites nonlinear viscoelasticity constitutive equation off-axis angle-tabs damage rubber-toughened Robert T. Bocchier? and Richard A. Schapery ~ Nonlinear...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2872-X
ISBN: 978-0-8031-2872-9
... The relationship between microstructural damage and the thermal diffusivity of unidirectional reinforced Nicalon™-LAS II was investigated. Damage in the form of matrix-microcracking and fiber-matrix debonding was induced in the composites through Monotonic and cyclic mechanical loading...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2499-6
ISBN: 978-0-8031-2499-8
... and a slab method. This model also includes shear strain computation within a radial-longitudinal tube plane using an upper bound model. Rolling forces are deduced and compared with experiments, and a damage function is computed. We have also applied the finite element method to pilgering to get more...