3.1.1.1 Shipbuilding materials

3.1.1.2 Welding

3.1.1.3 Bulkheads

Following each numbered area of Required performance there is a list of activities that the trainee should complete and which collectively specify the standard of competence that the trainee must meet. These are for the guidance of teachers and instructors in designing lessons, lectures, tests and exercises for use in the teaching process. For example, under the topic 3.1.1.1, to meet the Required performance, the trainee should be able to:

• state that steels are alloys of iron, with properties dependent upon the type and amounts of alloying materials used

• state that the specifications of shipbuilding steels are laid down by classification societies

• state that shipbuilding steel is tested and graded by classification society surveyors who stamp it with approval marks

and so on.

IMO references (Rx) are listed-in the column to the right-hand side. Teaching aids (Ax), videos (Vx) and textbooks (Tx) relevant to the training outcome and required performances are placed immediately following the TRAINING OUTCOME title.

It is not intended that lessons are organized to follow the sequence of Required performances listed in the tables. The syllabus tables are organized to match with the competence in the STCW Code Table A-ll/2. Lessons and teaching should follow college practices- It is not necessary, for example, for shipbuilding materials to be studied before stability. What is necessary is that all the material is covered and that teaching is effective to allow trainees to meet the standard of the Required performance.

FUNCTION 3: CONTROLLING THE OPERATION OF THE SHIP AND

CARE FOR PERSONS ON BOARD AT THE MANAGEMENT LEVEL

COMPETENCE 3.1 Control trim, stability and stress IMO reference

3.1.1 Fundamental priinciples of ship constuction, trim and stability

Textbooks: T11, T12, T35, T58, T69

Teaching aids: A1, A4, V5, V6, V7

Required performance:

1.1 Shipbuilding materials(3 hours) R1

• states that steels are alloys of iron, with properties dependent upon the type and amounts of alloying materials used

• states that the specifications of shipbuilding steels are laid down by classification societies

• states that shipbuilding steel is tested and graded by classification society surveyors, who stamp it with approval marks

• explains that mild steel, graded A to E, is used for most parts of the ship

• states why higher tensile steel may be used in areas of high stress, such as the sheer strake

• explains that the use of higher tensile steel in place of mild steel results in a saving of weight for the same strength

• explains what is meant by:

- tensile strength

- ductility

- hardness

– toughness

• defines strain as extension divided by original length

• sketches a stress-strain curve for mild steel explains:

- yield point

- ultimate tensile stress

- modulus of elasticity

• explains that toughness is related to the tendency to brittle fracture

• explains that stress fracture may be initiated by a small crack or notch in a plate

• states that cold conditions increase the chances of brittle fracture

• states why mild steel is unsuitable for the very low temperatures involved in the containment of liquefied gases

• lists examples where castings or forgings are used in ship construction

• explains the advantages of the use of aluminium alloys in the construction of superstructures

• states that aluminium alloys are tested and graded by classification society surveyors

• explains how strength is preserved in aluminium superstructures in the event of fire

• describes the special precautions against corrosion that are needed where

aluminium alloy is connected to steelwork