Spectral Fatigue Analysis (Static Analysis)

This example provides a step-by-step guide for performing a Spectral Fatigue Analysis based on static analysis using the Framework program. The model is created in GeniE, with hydrodynamic calculations handled by Wajac, pile-soil interaction assessed using Splice, and static analysis performed by Sestra.

Sesam Manager is used to organize the analysis workflow. Fatigue damage and fatigue life calculations are carried out in Framework, which will be used interactively in this example to help first-time users familiarize themselves with its commands.

For optimal performance, it is recommended to use the latest versions of the Sesam programs:

  • GeniE 8.12.3
  • Framework 4.5.0
  • Sestra 10.19.0
  • Sesam Manager 6.7.0
  • Splice 8.2.1
  • Wajac 7.13.0

Spectral Fatigue Analysis (Static Analysis)

Spectral Fatigue Analysis (ESL approach)

This example provides a step-by-step guide for performing a Spectral Fatigue Analysis with Equivalent Static Load (ESL) approach using the Framework program. The model is created in GeniE, with hydrodynamic calculations handled by Wajac, pile-soil interaction assessed using Splice, and dynamic analysis performed by Sestra.

Sesam Manager is used to organize the analysis workflow. Fatigue damage and fatigue life calculations are carried out in Framework, which will be used interactively in this example to help first-time users familiarize themselves with its commands.

For optimal performance, it is recommended to use the latest versions of the Sesam programs:

  • GeniE 8.12.3
  • Framework 4.5.0
  • Sestra 10.19.0
  • Sesam Manager 6.7.0
  • Splice 8.2.1
  • Wajac 7.13.0

Spectral Fatigue Analysis (ESL approach)

Shell Fatigue of Tubular Joints

This workshop addresses how to use shell fatigue, as compared to beam fatigue, to achieve more accurate calculated fatigue life by use of FE shell methodology. It includes:

  • Eigenvalue and dynamic analyses of a beam model
  • Beam fatigue analysis
  • Conversion of tubular joints to shell model and subsequent eigenvalue and dynamic analyses
  • Shell fatigue of critical part around brace/chord connections.

It is assumed that you are familiar with the user interfaces and functionalities of Sesam. The focus of this workshop is the workflow and not details of how to run Sesam.

Import the ZIP file into a new Sesam Manager job. The attached description explains all the steps to do the workshop.

Shell Fatigue of Tubular Joints

Fatigue Analysis with Manually Specified Oscillating Loads

This example involves using Sesam Manager, GeniE, Sestra and Framework. Create a new job in Sesam Manager and import the ZIP file to run the example.

The example demonstrates how to run a so-called direct deterministic fatigue analysis of a structure. This is a fatigue analysis with manually specified oscillating loads. (As opposed to wave loads computed by Wajac.) An example of such load is rotating machinery (with eccentric mass).

The example is a simple tower subjected to acceleration fields, horizontal and rotational, all together 4 loading situations. Each loading situation is modelled by two loads representing the two extremes of the loading situation. (For rotating machinery two concentrated forces may be used, a positive force and a negative force representing the two extreme loading situations.)

Fatigue Analysis with Manually Specified Oscillating Loads

Wind Fatigue Analysis

This example involves using Sesam Manager, GeniE, Wajac, Sestra and Framework. It includes wind fatigue analysis of a flare boom. Read the PDF document attached to the job.

Wind Fatigue Analysis