Section 2 Scantling determination for NS1 ships

2.1.1 The local scantling requirements of higher tensile steel plating, longitudinals, stiffeners and girders may be based on a k _s factor determined as follows:

or 0,66 whichever is greater

where

2.1.2 The global scantling requirements of higher tensile steel plating, stiffeners and primary members are based on a k _L factor defined as follows, see Vol 1, Pt 6, Ch 5, 2.1 Design criteria 2.1.3:

where

f _hts is the higher tensile steel correction factor for global loads, see Vol 1, Pt 6, Ch 5, 1.3 Higher tensile steel

2.1.3 Where different grades of steel are used for the plating and attached stiffeners, then the higher tensile steel factor, k _L is to be based on the lower material yield strength.

2.1.4 Buckling factors for NS1 ships compressive (λσ) and shear (λτ) stresses should be taken from Vol 1, Pt 6, Ch 5, 3 Scantling determination for NS2 and NS3 ships.