...) and reinforced with fiber reinforced polymer E-glass (FRP) or steel. This paper summarizes the current state of the art in polymeric piling practice, including (1) the mechanical properties of piling made of recycled polymers; (2) the durability of recycled polymers in aggressive soils; (3) the compressive creep...

...G. P. Potirniche A numerical strip-yield model was developed to simulate creep crack incubation in heat-resistant steels. The model is based on a formulation proposed by Newman (Newman, J. C., Jr., “A Crack-Closure Model for Predicting Fatigue Crack Growth under Aircraft Spectrum Loading,” Methods...

... Prony series sigmoidal function creep relaxation closed-form solution References EN 13108-6 , 2008 , “ Bitumenious Mixtures-Material Specification- Part 6: Mastic Asphalt ,” European Standard , VSS , Zurich . Part1 , M. N. and Hean , S. , “ Practical Aspects of Interaction...

...Jonathan Parker 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...

...R. A. Ainsworth; D. W. Dean; P. J. Budden Fitness-for-service assessments of components operating at high temperature often require estimates of creep crack growth in service. Although methods for calculating creep crack growth are given in R5 and other codes, these methods are limited in terms...

... cases highlight mechanical, environmental and installation issues. These include failure to account for material creep and fatigue, defects in fusion bonding, incompatibility of solvent cement, strength limitation of joint elements, and improper installation techniques. The case studies suggest ways...

... the anisotropic creep behavior and the elasto-plastic behavior of unirradiated recrystallized Zircaloy-4 at 400 ° C . Finally, the quantitative analyses, which have been carried out with TEM correspond well with the results provided by the micromechanical approach. 01 02 2010 29 09 2010 02 12 2010...

... planned for use on the moon for chemical analysis is discussed. It is shown that in-depth understanding of cyclic loading effects observed through accelerated creep rates due to creep-fatigue interaction in polymers is critical in terms of proper functioning of EAP based actuator devices. In the paper...

... cluster dynamic modeling has also been used in order to reproduce the material recovery for various annealing conditions. The microstructural evolution during mechanical testing with various loading conditions has also been studied. It has been shown that during a creep test with low applied stress (130...

... irradiation creep models are needed to predict the deformation behavior of the core components over the reactor life. It is important to know the creep behavior as a function of neutron flux in order to develop creep models over the range of operating conditions in the reactor core. At the edge of the reactor...

... approach, based on the linear elastic stress intensity factor to predict the crack initiation time under creep loading, is also considered. E. P. Busso,1 N. P. O Dowd,2 and K. Nikbin2 Journal of ASTM International, Vol. 3, No. 7 Paper ID JAI13219 Available online at www.astm.org Mechanistic Studies of High...

...M Yatomi; KM Nikbin This paper presents a numerical study of simulated creep crack growth (CCG) prediction in a compact tension [C(T)] specimen and a pipe component containing cracks. The results are compared to experimental data of the same consisting of creep crack growth tests of a carbon...

...H-Y Lee; KM Nikbin In this study the effects of high temperature relaxation on the residual stresses has been examined for T-plate and tubular T-joint geometries by numerical analysis using elasto-plastic-creep finite element modelling. It is shown that residual stresses are important, especially...

... tensile data and thermal creep data before and after irradiation were analyzed to provide further information about the materials' deformation behavior. The extensive tensile database for V-4Cr-4Ti was used to determine the key material parameters in physically-based constitutive equations. The resultant...

.... In principle, the deformation rate is a linear function of fast neutron flux, and this is mostly true for fast neutron fluxes of the order of 10 17 n.m −2 .s −1 . Recent analyses of data from pressure tubes measured over long periods of operation in reactor have shown that the steady-state diametral creep...

...G Gupta; GS Was Ferritic-Martensitic alloys are expected to play a major role in supercritical water reactor internals. These steels offer better swelling resistance than austenitic alloys but may suffer from grain boundary or matrix creep and loss of strength at higher temperatures...

... the hydrided materials become brittle at a lower weight gain than as-received materials; this embrittlement is due both to an intrinsic hydrogen-embrittlement effect and to the oxygen content increase resulting from the effect of hydrogen on its solubility in prior-Beta phase. LOCA zirconium alloy creep...

... cycle fatigue, long life regime. The stress relaxation behavior is found even for room temperature loading conditions, well below the temperature regime normally associated with creep and stress relaxation. It is suggested that the creep and stress relaxation deformation modes during hold periods...

..., microstructure, precipitates, fuel cladding, heat treatment, creep, growth, PWRs Historical Perspective Ever since the application of unalloyed zirconium in the STR Mark 1 land-based prototype reactor more than 50 years ago, nearly all programs on Zr-alloy development have focused on improved corrosion...

...K Wasmer; KM Nikbin; GA Webster In this paper, creep crack initiation and growth data are reported on type 316L(N) stainless steel at 650°C on compact tension (CT) specimens and on plates containing a semi-elliptical surface defect. The compact tension tests were carried out according to standard...