... in comparison with the beltline is more complex, especially under the thermal loads. In recent studies, significant research efforts have been conducted to show that the nozzle region may be more challenging under some conditions. In this paper, a fracture assessment for the RPV nozzles subjected to pressure...

...Bingjun Chen; P.-Y. Ben Jar; Pierre Mertiny; Robert Prybysh This paper investigates the influence of primer on mechanical properties and fracture behavior for ring specimens, prepared from the commercial chlorinated polyvinyl chloride (CPVC) pipe. After immersing the specimens in primer for 30 min...

.... The underclad crack is the most critical crack and the deeper crack is the least critical one in this study. Considering uncertainties of the transients results in higher failure probabilities. Computational mechanics Fracture Life management reliability Lift Limit analysis Shakedown analysis...

... category, and 392 pipeline units belong to low risk category. design engineering erosion fault trees fracture fuzzy set theory pipelines risk analysis statistical analysis risk analysis buried pipeline fuzzy theory This paper is first presented in ASME PVP2008. Fuzzy...

... steels for high temperature components issued by National Institute for Materials Sciences (NIMS) in Japan. The number of cycle to fracture versus switching temperature for the coke drums was then plotted. The curve best fitting criteria was then used to develop an equation relating the number of cycle...

...C. Gato; Y. Shie Dynamic fracture of thin-walled cylindrical structures is studied with a large deformation meshfree method. Due to the higher order continuity and smoothness of the shape functions, meshfree methods are well suited to simulate dynamic fracture of thin-walled structures since...

..., the tensile fracture response of the pipeline/girth weld would normally be the governing limit state. Seamless line pipes are preferred for the reeling applications in which the Lüders plateau is often exhibited in materials stress-strain response. In this paper, the fracture response of such pipelines...

... fracture criteria of locally thinned pipes since the tragic events at Surry Unit 2 and Mihama Unit 3. A large number of tests have been performed on carbon steel pipes, elbows, and tees with local wall thinning. In addition, the American Society of Mechanical Engineers Boiler and Pressure Vessel Code...

...Y. W. Kwon; W. A. Schultz; D. C. Loup; E. A. Rasmussen In order to join a composite structure to a metallic structure, metal-wire mats were co-cured with composite laminas using the vacuum assisted resin transfer molding technique. Then, interface fracture toughness was measured for Mode II...

... movements, thermal strains, and internal fluid pressure. Exceeding the critical deformation limit of these pipes initiates wrinkles, and further increase may result in fracture, thus jeopardizing the safe operation of a field pipeline. A recent field fracture and failed laboratory specimens under monotonic...

..., Soave–Redlich–Kwong, and Groupe Européen de Recherches Gaziéres. The measured gas decompression curves were used to predict the fracture arrest toughness needed to assure fracture control in natural gas pipelines. The rupture tube test results have shown that the Charpy fracture arrest values predicted...

... 2010 23 08 2010 boilers creep creep testing finite element analysis fracture fracture toughness testing internal stresses life testing pipes pressure remaining life assessment steel internal pressure creep P91 steel longitudinal welded tube life prediction void growth...

...L. Xue; G. E. O. Widera; Z. Sang In an earlier paper ( 2009, “Burst Pressure of Pressurized Cylinders With the Hillside Nozzle,” ASME J. Pressure Vessel Technol., 131(4), p. 041204 ), an elastic-plastic large deflection analysis method was used to determine the burst pressure and fracture location...

... for successful loading and completion of these tests. This paper makes a detailed discussion on the test setup, test method, loading and boundary conditions, instruments used, and test results obtained from this study. 28 11 2008 08 03 2010 28 04 2010 28 04 2010 bending fracture...

... by conducting fatigue fracture test on two mild steel cruciform specimens of 135 mm thickness: one under room temperature and the other under subzero temperature ( − 70 ° C ) . A semi-elliptical surface starter notch of 2 mm width and more than 400 mm length was initially created in the specimens. Alternating...

... for about 100,000 h. The failure occurred without appreciable wall thinning. Specimens were taken from the region beneath the fracture surface and investigated by optical and electron microscopes. The microstructure was composed of ferrite and grain boundary particulate carbides. The results indicated...

... summarized. 30 04 2008 19 09 2008 02 09 2009 austenitic stainless steel casting creep fracture Austenitic stainless steel use world-wide is increasing significantly every year. United States consumption in 2007 of sheet/strip, plate, bar, and rod was over 1.5 million tons...

.... DHC is a repetitive process that involves hydrogen diffusion, hydride precipitation, formation, and fracture of a hydrided region at a flaw tip. An overload occurs when the flaw-tip hydrided region is loaded to a stress, higher than that at which this region is formed. For the fitness-for-service...

... fracture nickel plasticity remaining life assessment thermal analysis thermal shock Thermal transients and cyclic effects play a central role in defining the integrity of thick-walled high temperature components. While it is straightforward to assign section thickness based on temperature...

... Fracture Mechanics Analyses of Part Circumferential Surface Cracked Pipes ,” Int. J. Fract. 0376-9429 , 116 , pp. 347 – 375 . 10.1023/A:1020779611803 Kastner , W. E. , Röhrich , E. , Schmitt , W. , and Steinbuch , R. , 1981 , “ Critical Crack Sizes in Ductile Piping ,” Int. J...