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Force and Stress Outputs

Overview

This section describes the calculation of various force and stress outputs provided by Flexcom. Firstly it summarises the significance of some commonly used Flexcom keyword inputs. Sign conventions used in Flexcom for bending moment, shear force and torque are then outlined. The computation of axial force and effective tension are then discussed, followed by a summary of the procedures for calculating the various stress and strain outputs produced by Flexcom.

Further Information

Further information on this topic is contained in the following sections:

Significance of Flexcom Keyword Inputs

•Force Variable Input

•Location Parameter Input

Sign Conventions

•Bending Moment Sign Convention

•Shear Force Sign Convention

•Torque Sign Convention

•Axial Force and Effective Tension

Stress and Strain Computations

•Bending Stress

•Hoop Stress

•Radial Stress

•Axial Stress

•Torsional Stress

•Von Mises Stress (Standard Method)

•Von Mises Stresses (API-2RD Method)

•Longitudinal Stress

•Sidewall Pressure

Stress and Strain Computations

•Bending Strain

•Planar Curvature

•Axial Strain

•Torsional Strain

•Longitudinal Strain

•Plastic Axial Strain

•Equivalent Plastic Axial Strain

•Plastic Local-Y & Local-Z Curvatures

•Equivalent Plastic Curvature

Relevant Keywords

Flexcom provides a variety of postprocessing options, and the primary channels are as follows.

•Database Postprocessing generally represents the most comprehensive postprocessing resource. Numerous keywords are contained in the $DATABASE POSTPROCESSING section, each of which is capable of generating Graphical Output, Tabular Output and Spreadsheet Output.

•Summary Postprocessing allows you to extract pertinent results (e.g. maximum/minimum values) from time domain analyses in succinct tabular format. Numerous keywords are contained in the $SUMMARY POSTPROCESSING section, which allow you to control the contents of the Summary Output File. Although summary output is predominately used to create succinct tabular output, it is also capable of generating Graphical Output in the form of plot files.

•Summary Postprocessing Collation allows you to collate the summary postprocessing results across a range of different time domain analyses. Numerous keywords are contained in the $SUMMARY COLLATE section, which allow you to control the contents of the Summary Collation Spreadsheet.