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Online Course

Risk and Reliability of offshore structures

Indian Institute of Technology Madras and NPTEL via Swayam

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Overview

Considering the importance of offshore structures, one has to recognize that there are other intrinsic uncertainties such as material properties, analysis methods, design procedures etc, which are addressed rationally. A detailed knowledge of reliability of offshore structures using probabilistic tools becomes need of the hour for both industry and academia. Offshore activities, on one hand, lead to increase in societal wealth, and, on the other hand, make society vulnerable to risks. An offshore engineer is usually accountable for the decisions that he takes. A hallmark of professionalism is to quantify the risks and benefits involved. The present course aims to introduce the basics of the structural reliability analysis procedures. The Registrants would benefit from the course by learning the basics of reliability-based design and principles underlying code calibration, which would provide the groundwork to embark upon research in this field. Key focus will be on safety and reliability issues of offshore facilities during analysis and design, inspection and planning. 

Syllabus

Module 1:
Concepts of probability
Sampling statistics
Types of uncertainties
Modeling random variables like loads, material properties etc
Introduction to classical reliability theories
Error estimation

Module 2:
Levels of reliability
Reliability estimates
FOSM, AFOSM and application problems
Codes of practice of safety check
Reliability bounds of structural systems
Treatment of geometric variables
Probabilistic methods of code calibrations

Module 3:
Application to offshore structures
Stochastic process
Gaussian process
Risk assessment
Hazard identification
ETA, FTA
Risk modeling and Risk picture
Probabilistic risk assessment

Taught by

Srinivasan Chandarsekaran

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