Eff, Cf, z - CAESAR II - Help

CAESAR II Users Guide

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CAESAR II
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CAESAR II Version
12

Specifies the appropriate factor as required by the piping code:

Stoomwezen

The cyclic reduction factor, Cf.

Norwegian TBK-6

The circumferential weld strength factor, z.

When no value is defined, the software uses a default value of 1.0.

BS 7159

The longitudinal weld efficiency, Eff, which is the ratio of the design stress (ed) in the circumferential (hoop) direction to the design stress in the longitudinal direction. Because design stress is defined in Sec. 4.3 of the code as:

s = ed * EIamÆ, sdx = ed * EIamx

and design strain should be the same for both directions, this entry is also the ratio of the moduli of elasticity:

EIamÆ (hoop) to EIamÆ (longitudinal)

When no value is defined, the software uses a default value of 1.0.