Ashutosh Sutra Dhar
Memorial University of Newfoundland
GeologyEngineeringFinite element methodNonlinear systemComposite materialPipeline transportHigh-density polyethyleneMains electricityGeotechnical engineeringInternal pressureMetallurgyMaterials scienceCorrosionCast ironMedium-density polyethyleneThermoplasticBurst pressureComputer scienceFracture mechanicsStructural engineeringBendingStress (mechanics)
52Publications
9H-index
242Citations
Publications 53
Newest
#1Parththeeban Murugathasan (MUN: Memorial University of Newfoundland)H-Index: 1
#2Ashutosh Sutra Dhar (MUN: Memorial University of Newfoundland)H-Index: 9
Last. Bipul Hawlader (MUN: Memorial University of Newfoundland)H-Index: 13
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Buried pipelines, used for transporting liquid and gas, are often subjected to axial pulling forces due to seasonal temperature changes and/or relative ground movements. The axial pullout force is ...
2 CitationsSource
#1Suborno DebnathH-Index: 1
#2Ismail Muftah Ali (MUN: Memorial University of Newfoundland)H-Index: 1
Last. Premkumar Thodi (St. John's University)H-Index: 8
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Municipal water distribution systems in Canada and other countries include a large number of cast iron pipes that were installed almost 50 years ago. For structural integrity assessment of these pi...
2 CitationsSource
#1Auchib RezaH-Index: 1
#1Parththeeban Murugathasan (MUN: Memorial University of Newfoundland)H-Index: 1
#2Ashutosh Sutra Dhar (MUN: Memorial University of Newfoundland)H-Index: 9
Last. Kshama RoyH-Index: 4
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#2Ian D. MooreH-Index: 26
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#1Hieu Chi Phan (MUN: Memorial University of Newfoundland)H-Index: 5
#2Ashutosh Sutra Dhar (MUN: Memorial University of Newfoundland)H-Index: 9
Last. Rehan Sadiq (UBC: University of British Columbia)H-Index: 63
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Abstract Water distribution network (WDN) is an important infrastructure which suffers from failures. A risk-based decision making required for maintaining the integrity of water mains effectively. This paper presents a framework for risk assessment of pipes in a WDN for maintenance prioritization. Because pipe failure can lead to various types of consequences, a fuzzy inference system (FIS) is proposed to aggregate different consequences. The properties of algebraic connectivity (AC) from compl...
9 CitationsSource
#1Bipul Chandra Mondal (MUN: Memorial University of Newfoundland)H-Index: 5
#2Ashutosh Sutra Dhar (MUN: Memorial University of Newfoundland)H-Index: 9
Abstract In the conventional method of analysis for the remaining strength assessment of a corroded pipeline, von Mises failure criterion is used. This continuum-based modelling approach is unable to assess the cracking of the pipeline. In this study, a fracture mechanics approach is used for the assessments of burst pressures of pipelines with corrosion only defects, pipelines with crack-like defects and pipelines with crack-in-corrosion defects. The fracture mechanics approach with the J-integ...
6 CitationsSource
#1Diponkar Saha (MUN: Memorial University of Newfoundland)
#2Bipul Hawlader (MUN: Memorial University of Newfoundland)H-Index: 13
Last. Ashutosh Sutra Dhar (MUN: Memorial University of Newfoundland)H-Index: 9
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#1Bipul Chandra Mondal (MUN: Memorial University of Newfoundland)H-Index: 5
#2Ashutosh Sutra Dhar (MUN: Memorial University of Newfoundland)H-Index: 9
Abstract The remaining strength of corroded pipeline is generally assessed considering the internal pressure only. However, pipelines are often subjected to axial forces and bending moments due to external loadings, which may significantly reduce the burst pressure of the pipeline. This paper presents a study using finite element analysis on the effects of axial forces and bending moments to the burst pressures of corroded pipelines. It is revealed that the compressive axial force and the closin...
21 CitationsSource
#1Hieu Chi Phan (MUN: Memorial University of Newfoundland)H-Index: 5
#2Ashutosh Sutra Dhar (MUN: Memorial University of Newfoundland)H-Index: 9
Last. Rehan Sadiq (UBC: University of British Columbia)H-Index: 63
view all 3 authors...
AbstractThis paper presents a method for prioritizing water mains for inspection and maintenance with consideration of municipalities with a lack of data for failure probability assessment. The met...
3 CitationsSource