Hide Table of Contents

Pressure Vessel Design Overview

In a Pressure Vessel Design study, you combine the results of static studies with the desired factors. Each static study has a different set of loads that produce corresponding results. These loads can be dead loads, live loads (approximated by static loads), thermal loads, seismic loads, and so on. The Pressure Vessel Design study combines the results of the static studies algebraically using a linear combination or the square root of the sum of the squares (SRSS).

When using a solid mesh, the software provides a stress linearization tool to separate bending and membrane components.


  • Important - Only loads can vary. The materials, restraints, contact conditions, model configurations, and meshes of the static studies being combined must be identical.

  • The solution is valid only if the results are in the linear range. Therefore, the studies cannot use Large Displacement solution or No Penetration contact since the linearity assumption fails in these cases.

  • This functionality is largely used in the design of pressure vessels. Design and manufacturing codes require combining certain load scenarios.

  • The software does not solve a set of simultaneous equations. It reads existing results of the selected studies and combines them.

  • When calculating quantities such as resultant displacements and von Mises and principal stresses, the software first combines the directional components.

  • For Pressure Vessel Design studies using SRSS, you cannot create displacement or deformation plots. This is because negative components of displacement become positive when squared. This produces incorrect results when the values are summed.

  • Reports are not available for Pressure Vessel Design studies in this release.

To use a Pressure Vessel Design study:

  1. Run the static studies that you want to combine.

  2. Right-click the model name in the Simulation study tree and select Study.

  3. In the PropertyManager, click Pressure Vessel Design then click .

  4. Right-click Setup to access the Result Combination Setup PropertyManager.

Select the studies that you want to combine and apply a factor for each study if you select Linear Combination.

  1. Right-click the study and select Run.

The software combines the results of the selected studies. You can view default plots or create new plots.

Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

Subject:   Feedback on Help Topics
Page:   Pressure Vessel Overview
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:


We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again

Web Help Content Version: SOLIDWORKS 2012 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.