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Data Security

Website Terms and Conditions

Software Licensing Terms


Data Security

We are committed to ensuring that your information is secure. In order to prevent unauthorised access or disclosure we have put in place suitable physical, electronic and managerial procedures to safeguard and secure the information we collect.

All data is stored in secure electronic systems accessible only to Oasys staff with both valid network login credentials and specific authorisation to access the system.  Our systems further limit data access by role to ensure data is available only to those who have a specific need to see it.

If at any point you suspect or receive a suspicious communication from someone suggesting they work for Oasys or a website claiming to be affiliated with Oasys, please forward the communication to us or report the incident by email to oasys@arup.com or in writing to Oasys, 13 Fitzroy Street, London, UK, W1T 4BQ as soon as possible.

Data Security Notice Updated 27th February 2020

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Website Terms and Conditions

The contents of this web site are protected by copyright and other intellectual property rights under international conventions. No copying of any words, images, graphic representations or other information contained in this web site is permitted without the prior written permission of the webmaster for this site.

Oasys accepts no responsibility for the content of any external site that links to or from this site.

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Software Licensing Terms

Terms and Conditions of Purchase

The full conditions of purchase and maintenance for all Oasys software are set out in the Oasys Software Licence and Support Agreement. All prices are subject to TAX at the current rate.

Prices and specifications are subject to change without notice – please ask for a written quotation.

Although every care has been taken to ensure the accuracy of all information contained herein, the contents do not form or constitute a representation, warranty, or part of any contract.

Superseded Versions of Terms and Conditions

Oasys keeps copies of all superseded versions of its terms and conditions.

Maintenance & Support Services

Support and maintenance is included with all subscription licences for their full duration.

Annual maintenance contracts are available for software under a perpetual licence, prices are based on a percentage of the most recent list price.

This service includes:

  • telephone/fax/email/web based support
  • free software updates available via internet download
  • personalised output header for many products

PDisp 19.4 Released – Consolidation Settlement and COM Interface

Oasys have released PDisp 19.4, PDisp calculates displacement due to pressure, either loading or unloading. It is typically used for predicting settlement of ground due to surcharging or demolition, predicting settlement of flexible footing/rafts, and predicting settlement of tunnel due to loading or unloading of the soil. Previous versions applied the elastic analysis methods, Boussinesq and Mindlin.

19.4 introduces a new feature incorporating Consolidation Settlement, as well as the COM interface. Application Specialist, Zeena Farook, hosted a webinar on the latest release that can be watched here.

What is consolidation settlement and why does it occur?

Consolidation settlement typically occurs in undrained soils such as clays due to the expulsion of water from voids. The rate of settlement can vary depending on the different soil permeability.

What is happening in the soil?

Immediate settlement or elastic settlement occurs in the drained soils and partially in the undrained soils. After this, primary consolidation settlement occurs, where the reduction in soil volume is due to the reduction in pore water pressure. Secondary consolidation then begins where you experience constant pore water pressure but the volume changes due to the rearrangement of the soil particle.

What does PDisp do with its consolidation settlement?

PDisp calculates instantaneous settlement in the drained and undrained soils, it will then calculate its primarily consolidation in the undrained soils. There are two options for the user;

  • mv Method (linear)
  • Cc Method (non-linear) – considers normally consolidated soils and overconsolidated soils

PDisp also calculates the secondary consolidation in the undrained soil.

Settlement

DispVsTime

COM Interface

PDisp’s new COM (Component Object Model) Interface utility allows for the creation of data objects. Data objects allow external programs to pass information and instructions to and from Oasys programs. COM objects can be used by many other programs, including Excel, MATLAB, and many others.

Why use COM Interface?

COM is already an established utility in other Oasys programs including Frew and Alp. Eengineers have used it to quickly access specific outputs across multiple programs, such as running sensitivity analysis and iterate between analysis results and other programs.

To help you start using COM, we’ve added a new section in the User Manual that takes you through the programming interface within PDisp. Packaged within the 19.4 release are COM examples using VBA and C++ code.

If you are considering using COM with your programs our customer support team and internal developers can assist you with linking application together. Contact us to find out more.

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