The CKN Knowledge in Practice Centre is in the early stages of content creation and currently focuses on the theme of thermal management.
We appreciate any feedback or content suggestions/requests using the links below

Content requests General feedback Feedback on this page

Composite materials engineering webinar session 9 - Mechanics of composites - Part 2: Laminate level - A128

From CKN Knowledge in Practice Centre
Perspectives - A8AIM Events - Webinars - A115Composite materials engineering webinar series - A119Composite materials engineering webinar session 9 - Mechanics of composites - Part 2: Laminate level - A128
 
Composite materials engineering webinar session 9 - Mechanics of composites - Part 2: Laminate level
Perspectives article
A128 Video Thumbnail Image-8AhFPxeFA5Di.png
Document Type Article
Document Identifier 128
Tags
Webinar Date
  • September 30, 2020

Introduction[edit | edit source]

In this session we build on what was introduced at the lamina level in the last session and build it up to a full lamina. We introduce laminated beams and plates, including laminate plate theory and the [ABD] matrix.

Webinar[edit | edit source]

Webinar slides[edit | edit source]

Webinar slides available by clicking on the icon below

PDF Icon-LK6QpdpqPx9B5d.svg


Additional information for select chapters[edit | edit source]

Chapter Chapter Title Links to related information in the Knowledge in Practice Centre
1 Welcome & introductions N/A
2 Overview of webinar series
3 Overview of the mechanical analysis of composites Future content
4 Micromechanics and macro mechanics Future content
5 Lamina vs laminate Future content
6 Review of beam theory Future content
7 Classical lamination theory: Laminated beams Future content
8 Stress distribution in composite laminates Future content
9 Derivation of ABD matrix for beams Future content
10 ABD matrix described Future content
11 ABD formulas for laminated beams Future content
12 Example: Calculating ABD matrix for a beam Future content
13 Implications of a non-zero B matrix Future content
14 Laminate codes (how to specify a laminate) Future content
15 Quasi-isotropic laminates Future content
16 Overview of loads and ABD matrix for plates Future content
17 ABD formulas for laminated plates Future content
18 ABD matrix for isotropic material plates Future content
19 ABD matrix for orthotropic material plates Future content
20 Procedure for calculating ABD matrix of a laminate Future content
21 General laminate design considerations Future content
22 Calculating strain & stress with the ABD matrices Future content
23 Software demo for micromechanics & CLP calcuations N/A
24 Demo: Creating new fibre & matrix materials N/A
25 Demo: Creating lamina (direct or micromechanics) N/A
26 Demo: Defining a laminate N/A
27 Demo: Calculating laminate properties N/A
28 Demo: Stress-strain and strength analysis N/A
29 Demo: Failure envelope N/A
30 Demo: Plate analysis N/A
31 Demo: Tube and beam bending analysis N/A
32 Demo: Miscellaneous utilities N/A
33 Wrap-up N/A
34 Q&A N/A


Related pages

Page type Links
Introduction to Composites Articles
Foundational Knowledge Articles
Foundational Knowledge Method Documents
Foundational Knowledge Worked Examples
Systems Knowledge Articles
Systems Knowledge Method Documents
Systems Knowledge Worked Examples
Systems Catalogue Articles
Systems Catalogue Objects – Material
Systems Catalogue Objects – Shape
Systems Catalogue Objects – Tooling and consumables
Systems Catalogue Objects – Equipment
Practice Documents
Case Studies
Perspectives Articles



About-hpWrZW97CxCB.svg
Help-hlkrZW15CxCB.svg
About Help
CKN KPC logo

Welcome

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


Workflows

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.