List of data for bend elements only (Output Table)

Data description/Result options:

ELEM:

Number of bend element (n)

BENDTYPE:

Bend element type

There are seven distinguished types of bend elements:

Smooth bend |
This is a smooth non-mitred bend element |

Short segments |
S < 2 l1 Mitre kinks always do influence each other 1 |

Medium segments |
S ≥ 2 l1 but due to a smaller angle of rotation the kinks do influence each other 1 |

Single mitred (series) |
S ≥ 2 l1 but due to a larger angle of rotation the kinks do not influence each other (or with a single kink) 1 |

Straight |
These are straight pipe elements within a mitre bend 1 (Only in combination with Single mitred series.) |

Closely spaced |
S < W (NEN 3650 specific) 2 |

Widely spaced |
S ≥ W (NEN 3650 specific) 2 |

FLEXCHAR:

Flexibility characteristic

(This value is calculated as t·R / r2)

(For smooth bends R is the actual bend radius,

for closely spaced or short or medium spaced mitre bends R is the equivalent bend radius and

for widely spaced or single mitred (series) R is the kink radius. The R is also reported in table BENDFAC's column RADIUS.)

FLEXFACT:

Flexibility factor

(This value is the same as 1/K from table BENDFAC)

SIX:

Maximum stress intensification factor in axial direction

(Maximum multiplication factor for longitudinal bending stresses.)

SIF:

Maximum stress intensification factor in circumferential direction

(Maximum multiplication factor for circumferential bending stresses)

1 Only in case the Analysis Type is 'General'.

2 In case the Analysis Type is 'NEN 3650-2' and all other types.

H500671, last changed: 11/4/2020

See also: