[{"command":"settings","settings":{"basePath":"\/","pathPrefix":"","ajaxPageState":{"theme":"csir","theme_token":"wD60Kpr01DLZvFuyZPBDN9Q2o2KTPmx9KjL6bje3Dtw"},"encrypt_submissions":{"baseUrl":"https:\/\/serc.res.in"}},"merge":true},{"command":"insert","method":"replaceWith","selector":"#node-5563","data":"\u003Cdiv id=\u0022node-5563\u0022 class=\u0022node node-expertise-research-developement clearfix\u0022 about=\u0022\/fatigue-and-fracture-studies-carbon-and-stainless-steel-pipe-welds-and-elbows-sponsor-bhabha-atomic\u0022 typeof=\u0022sioc:Item foaf:Document\u0022\u003E\n\n        \u003Ch2\u003E\n      \u003Ca href=\u0022\/fatigue-and-fracture-studies-carbon-and-stainless-steel-pipe-welds-and-elbows-sponsor-bhabha-atomic\u0022\u003EFatigue and fracture studies on carbon and stainless steel pipe welds and elbows (Sponsor: Bhabha Atomic Research Centre, Mumbai)\u003C\/a\u003E\n    \u003C\/h2\u003E\n    \u003Cspan property=\u0022dc:title\u0022 content=\u0022Fatigue and fracture studies on carbon and stainless steel pipe welds and elbows (Sponsor: Bhabha Atomic Research Centre, Mumbai)\u0022 class=\u0022rdf-meta element-hidden\u0022\u003E\u003C\/span\u003E\u003Cspan property=\u0022sioc:num_replies\u0022 content=\u00220\u0022 datatype=\u0022xsd:integer\u0022 class=\u0022rdf-meta element-hidden\u0022\u003E\u003C\/span\u003E\n  \n  \u003Cdiv class=\u0022content clearfix\u0022\u003E\n    \u003Cdiv class=\u0022field field-name-body field-type-text-with-summary field-label-hidden\u0022\u003E\u003Cdiv class=\u0022field-items\u0022\u003E\u003Cdiv class=\u0022field-item even\u0022 property=\u0022content:encoded\u0022\u003E\u003Cp class=\u0022rtejustify\u0022\u003EThe test specimens were made of SA 333 Gr. 6 carbon steel and SS 304 LN grade stainless steel.\u00a0 The carbon steel pipes were of 12\u00b2 nominal outer diameter and nominal thickness of 22\u00a0mm.\u00a0 The stainless steel pipes and elbow specimens were of 6\u00b2 nominal outer diameter and nominal thickness of 14.2 mm.\u00a0 The circumferential notch was located on the base metal for carbon steel pipes whereas for stainless steel pipes the circumferential surface notch was located on base metal in a few specimens and weld metal in others.\u00a0 The notch was located in the base metal at intrados, extrados or crown location for stainless steel elbows.\u00a0 The orientation of the notch on elbow specimens was either circumferential or axial.\u003C\/p\u003E\n\u003Cp class=\u0022rtejustify\u0022\u003ECrack growth data was acquired during the fatigue tests at regular intervals of loading. \u00a0Alternating Current Potential Difference, Ultrasonic and Phased Array techniques were employed for crack detection and sizing.\u00a0 Surface crack growth measurements were made using a video microscope.\u00a0 Beach mark loading technique was also employed for crack growth profile validation.\u00a0 Fatigue crack growth tests were carried out under various loading conditions namely, vibration loading, vibration and torsional loading, etc.\u00a0 Same FCG tests were also conducted on elbows in water environment.\u00a0 In addition, fracture tests were conducted on pipes under static monotonic loading under in-plane bending.\u00a0 The extensive experimental investigations have resulted in better understanding of the behaviour of piping components and helped in generating valuable fatigue crack growth data under different environmental and loading conditions which will be very useful for integrity assessment of power plant components.\u003C\/p\u003E\n\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E  \u003C\/div\u003E\n\n      \u003Cdiv class=\u0022link-wrapper\u0022\u003E\n      \u003Cul class=\u0022links inline\u0022\u003E\u003Cli class=\u0022node-readless first last\u0022\u003E\u003Ca href=\u0022\/more\/node\/5563\/teaser\u0022 class=\u0022use-ajax\u0022\u003ERead less\u003C\/a\u003E\u003C\/li\u003E\n\u003C\/ul\u003E    \u003C\/div\u003E\n  \n  \n\u003C\/div\u003E","settings":null},{"command":"invoke","selector":"#node-5563","method":"addClass","arguments":["more-load node-teaser"]},{"command":"readmore_ajax","speed":"350"}]