Subject Code & Name: PE25201 – Solid Mechanics and Offshore Structures
Regulation: R-2025
Semester: II (Second Semester)
Branch: B. Tech. Petroleum Engineering (Petrol)
Credits / L-T-P: 3 Credits | L-T-P: 3-0-0
Course Objectives
- This course will help students expand their knowledge on the basic principles established in solid mechanics and offshore structures.
Full Unit-wise Syllabus
Unit I – Stresses and Strains
Kinds of stress-strains, elasticity and plasticity, Hooke’s law, stress–strain diagrams, modules of elasticity, Poisson’s ratio, linear and volumetric strain, relation between E, N, and K, bars of uniform strength, compound bars and temperature stresses.
Activity: Demonstration of various stress strain diagram.
Unit II – Shear Force, Bending Moment and Simple Bending
Types of supports, loads, Shear force and bending moment for cantilever and simply supported beams without overhanging for all types of loads. Theory of simple bending, simple bending formula, Distribution of Flexural and Shear stress in Beam section, Shear stress formula, Shear stress distribution for some standard sections.
Activity: Demonstration of Shear stress distribution for some standard sections.
Unit III – Thin and Thick Cylindrical Shells
Stress in cylindrical shells due to internal pressures, circumferential stress, longitudinal stress, design of thin cylindrical shells, spherical shells, change in dimension of the shell due to internal pressure, change in volume of the shell due to internal pressure. Thick Cylinders: Lame’s equation – cylinders subjected to inside and outside pressures; columns and Struts.
Activity: Case studies on stress calculation in different structure.
Unit IV – Floating Structures and Hydrostatics
Floating structures, basic hydrostatics, centre of gravity, center of buoyancy, displacement, law of floatation, draft, keel, Simpson’s rule for areas and centroids, second moments of area, moments of inertia, mass moment of inertia, calculation of metacentric height, Stability of floating structures, Definition of neutrally and positively buoyant structures.
Activity: Virtual demonstration of floating structures used in the industry.
Unit V – Offshore Structures
Functions of offshore structures, Fixed offshore structures, Types of fixed structures, fabrication, transportation, installation and operation of offshore structures, construction of offshore concrete structures, Definition of compliant structures, Types of compliant structures.
Activity: Report preparation on offshore structures (as indicated in official syllabus).
Course Outcomes (COs)
- CO1: Explain the fundamental principles of stresses and strains.
- CO2: Assess different types of supports and loads.
- CO3: Evaluate the cylindrical stability of the shells and floating structures.
- CO4: Design the fixed and floating offshore structures.
- CO5: Demonstrate the function of offshore structures and fixed offshore structures.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Activities / case studies / report preparation as indicated in unit activities; Internal Examinations (per CAC programme norms — Weightage line not printed immediately after PE25201 units in source TXT)
Source: Official Anna University – B. Tech. Petroleum Engineering R-2025 Syllabus
Last Updated: September 2026
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