Mechanica van Maritieme Constructies 2

The course consists of four parts:

• Strength of ships: (1) lectures + (2) laboratory exercise

• Material science: (3) lectures + (4) laboratory exercise

1. Strength of ships lectures

   Special topics related to the limit and ultimate strength of ships will be introduced, including buckling (beam and plate), plasticity, fatigue, and fracture.:

   1. Stress concentration factors

   2. Buckling of columns: imperfections, eccentricities, Euler, Johnson, Perry-Robertson;

   3. Buckling of plates: loading, boundary conditions, geometries;

   4. Effective width of plates: stiffness differences, shear deformations, non-symmetrical/curved cross-sectional forms, post-buckled stress distribution and types of loading;

   5. Plasticity: form factors, maximum capacity of beams, hinge line theory

   6. Fracture and fatigue: S-N curves, fatigue crack growth rate, Charpy testing, linear elastic fracture theory, elastic plastic fracture theory.
      

      The lecture materials consist of presentations (PowerPoint).
      The following two reference books are recommended:

      • Fracture Mechanics: Fundamentals and Applications, ISBN 9781498728133

      • Ship Structural Analysis and Design, ISBN 978-0-939773-78-3 (available for download from TU Delft library)

2. Strength of ships laboratory exercise: plate test

3. Material sciences lectures

   1. Strengths of materials: characteristics of steel and some non-ferrous ((mechanical) materials, density, structure and properties).

   2. Strengthening mechanisms on the microstructural scale.

   3. Thermomechanical processes of metals (deformation, recrystallization, phase transformations).

   4. Tension test: elastic modulus, yield strength, ultimate tensile strength, failure strain, necking, hardening, and plastic instability.

   5. Most common welding processes, process descriptions, advantages and disadvantages.

   6. Influence of welding on materials – microstructure, residual stress, deformations, common defects.

4. Material sciences laboratory exercise