... and integrity of static equipment and to avoid unplanned shut down. e-mail:  chidambaramselva@gmail.com 17 09 2018 14 05 2019 02 08 2019 creep voids carbon steel crack front high temperature fracture pressure vessel process piping The failure of metals and alloys due...

... 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...

... the ultimate dynamic strength of low carbon steel is developed. Based on the agreement between the results of the finite element analyses and those of the empirical formula, it can be concluded that a properly modeled finite element analysis (FEA) can be employed with sufficient accuracy to study the short...

... hydrogen gas pressure range and the test strain rate) and the specimen preparation be realistically consistent (such as the techniques to charge hydrogen and to maintain the hydrogen concentration in the specimens). carbon steel elongation fatigue cracks fracture toughness yield strength...

..., brittle fracture experiments were performed on carbon steel plates with two nonaligned flaws. From these calculations and experiments, authors studied the effect of stress intensity factor interaction on fracture behavior and proposed a new alignment rule for linear elastic fracture mechanics evaluation...

.... 15 – 25 . Weinstein , D. , 1982 , “ BWR Environmental Cracking Margins for Carbon Steel Piping ,” EPRI Report No. NP-2406. Mindlin , H...

... for predicting the maximum permanent transverse displacements of square plates prior to any cracking or perforation. 30 10 2006 13 04 2007 20 06 2008 carbon steel cracks impact (mechanical) plates (structures) projectiles impact perforation rectangular plates mild steel blunt...

... carbon steel cracks ductility impact (mechanical) plates (structures) projectiles impact perforation scaling circular plates square plates blunt conical hemispherical mild steel References 1 2 have reported the results of some recent experimental tests on the perforation...

... , K. , Takahashi , K. , Hisatsune , M. , and Hasegawa , K. , “ Failure Behaviour of Carbon Steel Pipe Having Local Wall Thinning Hear Tee Joint ,” Proceedings of PVP2006-ICPVT-11 Conference , Vancouver , Jul., ASME , Paper No. 93472, pp. 1 – 5 . Three FE models were prepared...

... are exposed to gasses at temperatures approaching 3000 ° F . Because sulfur compounds are present in the process gas, the carbon steel tube sheet and tubes in the assembly will be deteriorated by sulfidation as the operating metal temperature rises above 600 ° F . Ferrule systems are used to protect...

...% and 0.11% in strain amplitude indicated by dashed lines for carbon and low alloy steels and stainless steels, respectively. For carbon steel in Fig. 6 , reduction in fatigue life in water at elevated temperature ( 250 - 290 ° C ) clearly appears to have occurred at higher strain...

... carbon steel specimens exposed to repeated thermal shock. The test-rigs achieve large thermal shocks through the repeated water quenching of heated flat plate specimens. The effect of steady state loads on the growth and environmental effects due to the aqueous nature of the testing environment are found...

...Xu Chen; Bingjun Gao; Gang Chen With a multi-axial test machine, ratcheting was studied experimentally for pressurized low carbon steel elbows under reversed bending. The maximum ratcheting strain occurred mainly in the hoop direction at flanks. Hoop ratcheting strain was found at intrados...

...Rudolph J. Scavuzzo, Jr. The basic objective of this investigation is to determine the effect of loading on the stress intensification factors of Markl’s fatigue evaluation method for metal piping. Markl’s method is based on the fatigue testing of 4 in. schedule 40 carbon steel cantilever piping...

... validated for reliability of the results. Severe stress distributions and strain accumulations can be reduced through controlling outer geometric parameters. Materials having diverse mechanical properties such as carbon steel, Ti-Al-V alloy, near-eutectic Sn63-Pb37 solder alloy, and Nylon 66 are used...

... applying threshold and moderation factor and given by following equations: (9) ln F en , nom = 0.559 − 0.101 S * T * O * ε ˙ * Carbon Steel (10) ln F en , nom = 0.903 − 0.101 S * T * O * ε ˙ * Low...

.... Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY . Manuscript received by the PVP Division March 13 2003; revision received May 6, 2003. Associate Editor: M. Perl. 13 March 2003 06 May 2003 01 08 2003 carbon steel...

...P.-S. Lam; Y. J. Chao; X.-K. Zhu; Y. Kim; R. L. Sindelar Mechanical testing of A285 carbon steel, a storage tank material, was performed to develop fracture properties based on the constraint theory of fracture mechanics. A series of single edge-notched bend (SENB) specimen designs with various...

... difference in the local environmental conditions. The effect of the water flow rate on the fatigue life of a carbon steel was thus investigated experimentally. Fatigue testing of the carbon steel was performed at 289°C for various dissolved oxygen contents (DO) of less than 0.01 and 0.05, 0.2, and 1 ppm...

...Poh-Sang Lam; Robert L. Sindelar The J -integral fracture methodology was applied to evaluate the stability of postulated flaws in mild steel storage tanks. The material properties and the J -resistance J R curve were obtained from the archival A285 Grade B carbon steel test data. The J -integral...