Informatics Publishing Limited

Kesari Nagesh , Sudhakar Reddy , S. Chandramouli , P. S. Rao

Abstract

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P. Ananya ¹, B. R. Prasad Babu ¹, S. Chandramouli ¹

Affiliations
1 Department of CSE, East Point College of Engineering & Technology, Bangalore, Karnataka, IN

Abstract

The depiction of the useful, behavioral, and basic framework essentials structure focal parts of any genuine necessities detail. In the UML, for instance, practical prerequisites are communicated by use cases, their conduct demonstrated by e.g. action diagrams, and auxiliary prerequisites are caught by class models. Tragically, any product advancement strategy managing distinctive models confronts troubles guaranteeing consistency of the details and culmination as for each other. To defeat these lacks, we refine movement charts to address the issues of an appropriate displaying component for use case conduct. The refinement specifically bolsters the correct coupling of movement charts and the class model. Granularity and semantics of the methodology take into consideration a consistent, traceable move of utilization cases to area classes and for the confirmation of the space class model against the utilization case model. The approval of the utilization case model and parts of the area class model is upheld also.

Keywords

Parser, Schema, Rule File UML Models, XMI Data.

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M. Anandaraj ¹, P. Parameswaran ², S. Krishnakumar ¹, T. Ezhilarasi ², V. Thomas Paul ², R. Thirumurugesan ², S. Chandramouli ¹, V. Ramakrishnan ¹, G. Padmakumar ¹, Shaju K. Albert ², B. K. Nashine ¹, V. Prakash ¹, P. Selvaraj ¹

Affiliations
1 Fast Reactor Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, India - 603 102, IN
2 Metallurgy & Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, India - 603 102, IN

Abstract

One of the spark plug leak detectors employed in high temperature liquid sodium systems had failed to detect a sodium leak and systematic failure analysis was carried out to identify the ischolar_main cause of the failure. Radiography image of the leak port nozzle revealed that the extension wire which was welded with spark plug electrode had snapped. Since the failure originated from the cracks present in the weld, it was decided to standardize the welding procedure of spark plug electrode to extension wire to prevent the possibility of similar failures in future. Three different materials viz, stainless steel, nickel, inconel were chosen as extension wires as well as filler wires to optimize the welding parameters. Microstructural studies in terms of presence of defects, interface integrity between the weld and extension wire as well as that of spark plug electrode were carried out. Based on this, the final choice of welding parameters, material for extension wire and for filler wire to achieve a sound weld was proposed.

Keywords

Spark Plug Detector, Extension Wire, Failure Analysis, Metallography, Welding Procedure Qualification.

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