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

BENDELM

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: 6/22/2018

See also:

Table description

Table error description

Table BENDFAC

Design Function 5