Memorial University of Newfoundland

Faculty of Engineering and Applied Science

Eng. 7002 Ship Structural Analysis and Design

I. Objectives: The aim of this course is to extend the students knowledge of ship structural behavior. The course concentrates on rationally-based design (meaning design based on knowledge of structural behavior) rather than rule-based design. Safety margins and probabilities of failure are discussed. The structural mechanics of ship structural components and assemblages will be covered. In particular we focus on structural failure. By knowing the mechanics of structural failure, we can design against it.

II. Course Outline:

There are ~ 33 lectures over 13 weeks. The lectures are Monday, Wednesday and Friday at 12noon in X2078. There is a Tutorial Tuesday from 2pm to 5 pm. The lecture topics are to be as follows;

1. Ship Structural Safety

· the concept of rational design

· factors of safety and their relationship to probability of safety

· variable and uncertain quantities described by probability distributions

· Characteristic values and partial safety factors

· Safety index and relationship to probability of failure

· reliability of structural systems and risk analysis

2. Plate Behaviour

· Elastic behaviour of plates

· yield/failure criteria (von-Mises)

· plastic hinge collapse

· elastic membrane

· plastic membrane

· behaviour diagrams (several behaviours combined)

· finite aspect ratio plates

3. Special Topics

· fatigue in ships

· stiffened panel experiment

MIDTERM Exam (mid June)

4. Buckling of Columns

· Bifurcation buckling

· Vibration analogy

· Buckling of Eccentricity loaded columns

5. Buckling of Long Plates

· Theory

· Effective Breadth

6. Grillage Design

· Energy-based beam collapse

· extension to grillages

III. TEXTS AND REFERENCES:

· Hughes, O.F., 1983, Ship Structural Design, Wiley-Interscience, Published by the Society of Naval Architects and Marine Engineers, New York (1988).

· Rawson, K.J., and Tupper, E.C., 1983 Basic Ship Theory, Volume 1. Publ. by Longman, 3rd Ed.

· Muckle, W., 1967, Strength of Ship Structures, Edward Arnold, (Out of Print, in Libraries)

· Timoshenko, S.P., Woinowsky-Krieger, S., 1959, Theory of Plates and Shells, McGraw-Hill

· Evans, J.H., (Editor) 1975, Ship Structural Design Concepts, Cornell Maritime Press (a second volume of this book was added in 1983; it is subtitled `Second cycle’)

ASSESSMENT

Assignments: 15%

Structures Project 15%

Mid-term examination: 20% ( ~ mid June)

Final examination: 50%

INSTRUCTOR: Dr. C. Daley, Rm. EN4015, Tel: 8805, email: cdaley@engr.mun.ca