Functional characteristics of the STRESS/STRAIN (S) module.

Detailed stress calculation in selected pipe cross-sections.

Stresses are calculated in 48 equidistant points over the circumference at the inner and outer wall side.

Input facilities:

•neutral top soil weight along pipeline axis

•extra surface loading along pipeline axis

•various sub-soil bearing angle functions depending on ratio of sub-soil reaction and bearing capacity of the soil, variable along pipeline axis

•lateral horizontal soil support for vertical soil loadings, variable along pipeline axis.

 

Output facilities:

•stress components resulting from internal/external pressure (hoop stress)

•stress components resulting from internal forces, bending and twisting moments in the pipeline, taking into account pressurised toroidal shell behaviour at the pipe bends

•stress components resulting from local soil reactions distributed over the circumference of the pipe cross-section, taking into account the "pressurised ring rerounding" effect.

•summation of corresponding stress components

•determination of principal stresses according Mohr's circle

•determination of equivalent stresses according Von Mises/Huber-Hencky yield criterion

•overview of governing stress components and overall stresses.

•overview of governing Mohr, Tresca, Von Mises and uniaxial stresses.

 

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ModuleStressStrain (last modified: Apr 3, 2025

See also:

Module structure