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Wall thinning

Development of ToSPACE for Pipe Wall Thinning Management in Nuclear Power Plants

Development of ToSPACE for Pipe Wall Thinning Management in Nuclear Power Plants

... to thinning, leak, or rupture of the ...by wall thinning in Surry unit 2 of USA in 1986 and in Mihama unit 3 of Japan in 1994, the pipe wall thinning management has emerged as one of ...

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Shakedown And Limit Load Of Pipe Bends With Local Wall Thinning Under Combined Internal Pressure And Cyclic In-Plane Bending Moment

Shakedown And Limit Load Of Pipe Bends With Local Wall Thinning Under Combined Internal Pressure And Cyclic In-Plane Bending Moment

... extrados wall thinning, ...of thinning depth to thickness ratio d/t is less significant than circumferential thinning angle ϑ/π and longitudinal thinning angle 4ϕ/ ...intrados ...

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A Study on the Cause Analysis for the Wall Thinning and Leakage in Small Bore Piping Downstream of Orifice

A Study on the Cause Analysis for the Wall Thinning and Leakage in Small Bore Piping Downstream of Orifice

... to thinning of the ...from wall thinning in a 1000 MWe Korean PWR nuclear power ...pipe wall thinning is liquid droplet impingement ...

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Fracture Behavior of Tee   Pipe with Local Wall Thinning (G405)

Fracture Behavior of Tee Pipe with Local Wall Thinning (G405)

... local wall thinning. The effects of local wall thinning on the fracture behaviors of Tee pipe were ...Local wall thinning was machined on the inside of pipes in order to simulate ...

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Limit Load Analysis for Local Wall-Thinning Steam Generator Tubes

Limit Load Analysis for Local Wall-Thinning Steam Generator Tubes

... local wall-thinning defect were respectively made on SG ...local wall-thinning shape was rectangle-like flaw (projection geometry, see Figure 3), being used to simulate local ...

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Local Failure Criteria for Wall-Thinning Defect in Piping Componenbased on Simulated Specimen and Real-Scale Pipe Tests

Local Failure Criteria for Wall-Thinning Defect in Piping Componenbased on Simulated Specimen and Real-Scale Pipe Tests

... The averaged equivalent stress and strain and the averaged stress triaxiality over the thickness at the center of groove were evaluated for a given load level from the results of FE analyses. The maximum load and final ...

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Development of Integrity Evaluation Program for Pipe Wall Thinning

Development of Integrity Evaluation Program for Pipe Wall Thinning

... Wall thinning in piping systems can be caused by various ...the wall thinning in carbon steel piping systems of nuclear power plants and other industrial plants arises due to flow accelerated ...

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Application of Microwaves for Nondestructive and High Efficiency Detection of Wall Thinning Locations in a Long Distance Metal Pipe

Application of Microwaves for Nondestructive and High Efficiency Detection of Wall Thinning Locations in a Long Distance Metal Pipe

... This research aims to find an efficient and nondestructive way of detecting the locations of the pipe wall thinning (PWT) in a long-distance metal pipe at open-end condition. Time domain measurement of ...

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Pressurised Shell Intersections with Local Area Wall Thinning

Pressurised Shell Intersections with Local Area Wall Thinning

... intersection thinning is considered to occur in the nozzle only, while for the second thinning is considered to occur in both ...of wall thinning are considered for both ...

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Causes of Wall Thinning of a Spinning Component & Mathematical Modeling of Wrinkling
Sandeep Shukla, Sudhir Kumar & Dr Somnath Chattopadhyaya

Causes of Wall Thinning of a Spinning Component & Mathematical Modeling of Wrinkling Sandeep Shukla, Sudhir Kumar & Dr Somnath Chattopadhyaya

... Over the most recent two decades or somewhere in the vicinity, flow forming has been developing as a metal shaping procedure for the generation of engineering parts in little and medium bunch amounts. One of the most ...

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Interaction of SH guided waves with wall thinning

Interaction of SH guided waves with wall thinning

... deep thinning region with about ℓ = 1.5λ taper length when the SH1 mode was generated; a.. considerable long taper was chosen in order to ease visualization along the taper length.[r] ...

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Impact of Boiler Water Chemistry on Waterside Tube Failures

Impact of Boiler Water Chemistry on Waterside Tube Failures

... water wall tubes of two thermal power plant boiler of same capacity (250 MW) and same operational parameter but with different boiler water ...and wall thinning due to under deposit corrosion led to ...

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Feeder Thinning Rate Assessment near the PHT Headers   A Proposal to Eliminate PIP Wall Thickness Inspection Near Headers

Feeder Thinning Rate Assessment near the PHT Headers A Proposal to Eliminate PIP Wall Thickness Inspection Near Headers

... a wall thinning assessment of past Periodic Inspection Plan (PIP) inspections near the Primary Heat Transport (PHT) headers at Ontario Power Generation (OPG) nuclear units, including Pickering and ...

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Contrast Enhanced Cardiac MRI Findings Of Myocardial Infarction In Different Infarction Duration

Contrast Enhanced Cardiac MRI Findings Of Myocardial Infarction In Different Infarction Duration

... displaying wall thinning or impaired regional myocardial contraction can be clearly identified, this functional information does not indicate whether the myocardium is viable or ...not.[16]Segmental ...

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Imaging of the oesophagus: beyond cancer

Imaging of the oesophagus: beyond cancer

... and wall disor- ...tion. Wall disorders include wall thickening ...toma), wall thinning/outpouching ...lum), wall rupture ...

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On the Application of ASME Code Pressure Design Requirements on Locally Thinned Tight Radius Nuclear Pipe Bends

On the Application of ASME Code Pressure Design Requirements on Locally Thinned Tight Radius Nuclear Pipe Bends

... historic wall thinning ...local wall thinning are analyzed using idealized wall thickness profiles implemented in detailed finite element models by Abdelsalam and Vijay ...dependent ...

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Fracture   Behavior of Straight Pipe and Elbow with Local Wall Thining

Fracture Behavior of Straight Pipe and Elbow with Local Wall Thining

... This study was performed to evaluate the fracture behavior of carbon steel straight pipes and elbows with local wall thinning under monotonic and cyclic load.. The res[r] ...

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Flow Accelerated Corrosion in Pipe Wall Downstream of Orifice for Water and Air Water Bubble Flows

Flow Accelerated Corrosion in Pipe Wall Downstream of Orifice for Water and Air Water Bubble Flows

... An orifice is used widely as a flow meter or a contraction device in pipeline systems in hydro- power plants, thermal power plants, and chemical plants because of its simple construction, high reliability, and low cost. ...

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Ensuring Safe and No-Failure Operation of Pipelines and Power  Equipment Affected By Flow-Assisted Corrosion

Ensuring Safe and No-Failure Operation of Pipelines and Power Equipment Affected By Flow-Assisted Corrosion

... Active wall thinning in case of saturated steam flow (moisture content is less than 0,5%) in pipelines is practically excluded, since physic-chemical basis of such a process is ...considerable wall ...

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Determination of formability and flow stress curve for sheet metals using the viscous pressure bulging (VPB) test

Determination of formability and flow stress curve for sheet metals using the viscous pressure bulging (VPB) test

... In sheet metal forming operations the mechanical properties of the sheet material (i.e. flow stress or stress–strain curve) greatly influence metal flow and product quality. Therefore, accurate determination of the flow ...

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