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From CKN Knowledge in Practice Centre

Welcome to the help pages of the Knowledge in Practice Centre. Here you'll find useful information on various aspects of the site to help you understand how it is structured, how to navigate the content, and how to manage your account. This information is organized into the tabs below.

The layout of the KPC is organized according to a systems-level hierarchical approach, containing seven different but interconnected volumes as shown in the figure below. These are: Introduction to Composites, Foundational Knowledge, Systems Knowledge, Systems Catalogue, Practice, Case Studies, and Perspectives. Conceptually, preceding these volumes is open literature representing fundamental knowledge. This content is linked to through the references provided throughout the KPC. On the other end, proceeding these volumes are industrial documents that each company may have in their own documentation system, representing their industrial best practice.

Introduction to CompositesFoundational KnowledgeSystems KnowledgeSystems CataloguePracticeCase StudiesPerspectives
KPC Layout

In addition to the main content of the website organized into the various volumes, additional support content can be found including:

In general, top level pages of each volume and all pages of the Introduction to Composites and Foundational Knowledge volumes are available for viewing without being logged in to the KPC. For all other pages it is necessary to be logged in after accepting the KPC Policies (Privacy Policy and Terms and Conditions).

You can create an account using the Create Account page. The following video outlines the account creation process:

Levels of Detail[edit | edit source]

The Knowledge in Practice Centre is designed with different levels of users in mind. By offering certain pages in up to three levels of detail, all users can benefit from short, succinct explanations and efficient navigation, while also allowing users to learn at greater depth as their needs and experience levels demand. For this reason, you will find many KPC pages divided in up to three levels:

  • Level I - Provides the most succinct explanations and focuses on conveying an intuitive understanding of the complex interactions taking place so that you can apply your new understanding immediately on the shop floor. This level is ideal for those who are new to composite materials, new to a specific aspect of composite materials, or whose position doesn't require them to have an understanding of the equations used to analyze composites processes
  • Level II - Provides additional information along with analytical closed form equations where applicable. This level is suitable for most engineers in industrial sectors where a great benefit can be attained from utilizing simple analytical relationships in 0, 1 or (simplified) 2 dimensions
  • Level III - Provides information at the most complex level including information relevant to full 2 or 3 dimensional simulation of the topic. This level is suitable for engineers whose manufacturing challenges are complex enough to demand full numerical modelling (finite element, finite difference, computational fluid dynamics)

Tooltips[edit | edit source]

Tooltips such as those shown in the table below may be found throughout the KPC to convey information where it would otherwise be distracting to insert the information in the main text. Specifically you might notice them near equations to remind you of the meaning of the symbols within equations. Simply hover your mouse over the tooltip to see the additional information pop up.

Tooltip type icon
info This is a sample info tooltip
warning This is a sample warning tooltip
note This is a sample note tooltip
error This is a sample error tooltip

Glossary[edit | edit source]

A glossary of terms is provided in the Glossary. A link to the glossary can be found near the bottom of the navigation menu.

In-line glossary popups[edit | edit source]

examples of light underlining of glossary terms in a KPC page
"thermal management", "materials deposition management", "flow and consolidation management" and "residual stress and dimensional control management" terms are lightly underlined on Systems Knowledge - A4 showing that they are glossary terms and the definition can be viewed by mousing over the words.

The first instance of a word in the glossary on a page is an interactive link to the glossary definition. This will be apparent as lightly underlined words such as shown in the picture below on the right.

Glossary definition shown when mousing over a glossary word
The glossary definition of words or phrases can be seen by placing your mouse over words that are found in the glossary

By placing your mouse over these words the glossary definition will appear as shown so that you can understand the meaning of a word or phrase without needing to navigate directly to the glossary. You can go to the glossary definition page by clicking on the icon in the bottom right of the glossary definition popup.

References[edit | edit source]

See the "References" & "Footnotes" sections part of the help page for more information on navigating references within a page.

Each reference in the KPC has its own individual page where all the information about that reference is stored. You can access this page either by clicking on the [Ref] link in the References section on the page where the reference is used, or you can view all references and then view their specific page by navigating through the Reference navigation page.

The reference navigation page of the KPC.
The reference navigation page of the KPC can be used to view all references in the KPC including the type of reference, the authors and the number of times it is used in the KPC. Clicking on the link in the "Page" column will take you to the reference page where additional information can be found. Clicking on the link in the "Citation count in KPC" column shows the result of a search showing all the pages where that reference is used.

The Reference navigation page can be found near the bottom of the navigation menu by clicking on "References". The table in the Reference navigation can be sorted in increasing or decreasing order for any of the columns by clicking on the column header.

Find a reference in the KPC[edit | edit source]

In the Reference navigation page, there is a column titled "Citation count in KPC". The number of times each reference is used in the KPC is displayed in this column. By clicking on the number for a reference you will see a listing of all the pages where this reference is used. In this way you can better explore a reference that is of interest to you.

Account menu
Account menu

Information about your account and how to change settings can be found here:

Preferences[edit | edit source]

You can adjust any user preferences by clicking on the account menu and then "Preferences". Alternatively you can click on the following link: Preferences
In here you can do things like:

Alerts & Notices[edit | edit source]

You can see any alerts and notices by clicking on the account menu and then "Alerts" or "Notices". Alternatively, you can click on the following link: Notifications

Watchlist[edit | edit source]

By adding a page to your watchlist, you can receive notifications about any changes made to those pages. See Watchlist (Mediawiki) for more information.

Page tools menu icon
Icon for the page tools menu

You can add a page to your watchlist by clicking on the page tools menu and click "Watch"

Security[edit | edit source]

CKN takes information security seriously and numerous measures — as outlined in the Privacy policy — are taken to ensure information security. Some aspects of securing your account are also within your control, including setting a strong random password and additional login security such as multi-factor authentication.

Password change[edit | edit source]

You can change your account password using the Change credentials page. It is always best practice to use long, random character passwords that are not re-used between any sites.

Multi-factor Authentication[edit | edit source]

You may enable multi-factor authentication to further secure your account by requiring the entry of a six digit Time-based One-time Password (TOTP) after entering your account password. This TOTP is typically provided by an app on a mobile phone (such as Google Authenticator, DUO Mobile, LastPass Authenticator, Microsoft Authenticator and others) which has been configured and linked to your KPC account during multi-factor authentication setup.

To set up multi-factor authentication, go to the page: Enable Multi-factor Authentication and click on "Enable". You will then be shown a QR code that you can scan with your TOTP app of choice or manually enter the secret key if you are unable to scan the QR code. You will also be provided with 10 "scratch" codes. These are single use passcodes that can be used to access your account if you have an issue with your TOTP app. You should store these codes in a secure location such as a password manager and only use them if there is an issue with your TOTP app.

Once your app has been configured for the KPC, enter the current 6 digits TOTP into the Verification box and click "Submit". This step ensures that your TOTP app is correctly generating the codes before enabling multi-factor authentication for your account.

CKN welcomes and values feedback from users of the Knowledge in Practice Centre so that we can improve our content and add new content that is important to our users. Three feedback links are available at the top of the KPC pages so that we can efficiently receive and utilize your feedback:

Content requests[edit | edit source]

If you find that our current content does not meet your needs or if there is a specific aspects of composites that you would like to see addressed on the KPC please use the Content requests link here or at the top of pages.

General feedback[edit | edit source]

If you have any general feedback about either the Composites Knowledge Network or the Knowledge in Practice Centre we would be glad to hear it. Please use the General feedback link here or at the top of pages.

Page specific feedback[edit | edit source]

If you have feedback specific to a particular page of the Knowledge in Practice Centre, please use the "Feedback on this page" link at the top of pages. This link will attempt to record the URL that you were on when you clicked the link, but the success of this varies by web browser. To this end it also allows you to copy-paste the URL into the response itself so that you can help us ensure we are addressing the correct page that requires attention.

The CKN is always interested in having new people contributing content to the Knowledge in Practice Centre. If you would like to contribute to the Knowledge in Practice Centre please Contact us.

Acceptance of CKN's policies for the Knowledge in Practice Centre are required in order to use the Knowledge in Practice Centre. Pages that require users to be logged-in to view also require explicit acceptance of these policies. Occasional explicit re-acceptance is also required. If re-acceptance of the policies is required you will be prompted during login.

CKN's Knowledge in Practice Centre Terms and conditions of use as well as Privacy policy can be seen by clicking on the following links. These links are also available at the bottom of each page in the footer, and as links below the password field during login.

Terms and Conditions of Use[edit | edit source]

See our Knowledge in Practice Centre Terms and Conditions.

Privacy policy[edit | edit source]

See our Knowledge in Practice Centre Privacy Policy.


  1. This is an example footnote


  1. [Ref] Potter, Kevin (2017). "2". In Soutis, Constantinos (ed.). ‘But How Can We Make Something Useful Out of Black String?’ The Development of Carbon Fibre Composites Manufacturing (1965–2015). Springer International Publishing. doi:10.1007/978-3-319-46120-5 2 Check |doi= value (help). ISBN 978-3-319-46120-5.CS1 maint: uses authors parameter (link) CS1 maint: date and year (link)
About Help
CKN KPC logo


Welcome to the CKN Knowledge in Practice Centre (KPC). The KPC is a resource for learning and applying scientific knowledge to the practice of composites manufacturing. As you navigate around the KPC, refer back to the information on this right-hand pane as a resource for understanding the intricacies of composites processing and why the KPC is laid out in the way that it is. The following video explains the KPC approach:

Understanding Composites Processing

The Knowledge in Practice Centre (KPC) is centered around a structured method of thinking about composite material manufacturing. From the top down, the heirarchy consists of:

The way that the material, shape, tooling & consumables and equipment (abbreviated as MSTE) interact with each other during a process step is critical to the outcome of the manufacturing step, and ultimately critical to the quality of the finished part. The interactions between MSTE during a process step can be numerous and complex, but the Knowledge in Practice Centre aims to make you aware of these interactions, understand how one parameter affects another, and understand how to analyze the problem using a systems based approach. Using this approach, the factory can then be developed with a complete understanding and control of all interactions.

The relationship between material, shape, tooling & consumables and equipment during a process step

Interrelationship of Function, Shape, Material & Process

Design for manufacturing is critical to ensuring the producibility of a part. Trouble arises when it is considered too late or not at all in the design process. Conversely, process design (controlling the interactions between shape, material, tooling & consumables and equipment to achieve a desired outcome) must always consider the shape and material of the part. Ashby has developed and popularized the approach linking design (function) to the choice of material and shape, which influence the process selected and vice versa, as shown below:

The relationship between function, material, shape and process

Within the Knowledge in Practice Centre the same methodology is applied but the process is more fully defined by also explicitly calling out the equipment and tooling & consumables. Note that in common usage, a process which consists of many steps can be arbitrarily defined by just one step, e.g. "spray-up". Though convenient, this can be misleading.

The relationship between function, material, shape and process consisting of Equipment and Tooling and consumables


The KPC's Practice and Case Study volumes consist of three types of workflows:

  • Development - Analyzing the interactions between MSTE in the process steps to make decisions on processing parameters and understanding how the process steps and factory cells fit within the factory.
  • Troubleshooting - Guiding you to possible causes of processing issues affecting either cost, rate or quality and directing you to the most appropriate development workflow to improve the process
  • Optimization - An expansion on the development workflows where a larger number of options are considered to achieve the best mixture of cost, rate & quality for your application.