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Presentations - A135

From CKN Knowledge in Practice Centre
Perspectives - A8Presentations - A135

Overview[edit | edit source]

Obtaining a broad understanding of key concepts and emerging trends in composites is important when evaluating potential development paths for your composite parts. The presentations included here in the Perspectives volume of the Knowledge in Practice Centre (KPC) are curated with this goal in mind. By bringing you up-to-speed on the most important concepts, considerations and emerging trends of the day through presentations, you should be able to spend more time on the issues that matter.

Dr. Anoush Poursartip's Presentation in the cdmHUB Global Composites Expert Webinar Series[edit | edit source]

Link to Dr. Anoush Poursartip's Presentation in the cdmHUB global composites expert webinar series

Purdue University's Composites Design & Manufacturing HUB (cdmHUB) organized a series of webinars focused on a variety of topics important to the composites industry. These webinars were delivered directly by a number of globally recognized composite materials experts from September 2020 to June 2021. Known as the global composites expert webinar series, it provided an opportunity for those with extensive experience in composite materials research to communicate directly with knowledge users throughout the composites industry worldwide.

CKN Co-Director Dr. Anoush Poursartip kicked off the series with his presentation on the digital disruption of composites manufacturing and design. In his presentation, Dr. Poursartip outlined how recent advances in manufacturing simulation coupled with materials characterization and standardized workflows now allows users of composite materials to manage uncertainty and risk for composite parts beginning early on in the design stage. Dr. Poursartip's presentation outlines the benefits of knowledge in practice for composite part design.

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About Help
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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.