Fiber-Optic-Based In-Process Monitoring of CFRP Structures for Material Quality Assurance

27 Jan 2022 | Contributor(s): Johnathan Goodsell

Although carbon fiber reinforced polymer (CFRP) composites have been used extensively in many aerospace structures such as Boeing 787 and Airbus 350, low-cost and high-rate production CFRP are highly demanded for next-generation single-aisle commercial aircraft. Competition has been increasing...

Fibrous Shell Approach and 3D Second Gradient Modeling for Textile Composite Draping

10 Dec 2021 | Contributor(s): Johnathan Goodsell

Composite manufacturing processes are often complex and process simulation is a way to avoid costly trial-anderror development. Simulations of composites textile reinforcements draping use shell finite elements for which the bending behavior is very particular. The fibrous composition of the...

Free Edge Elasticity Solution

13 May 2013 | Tools

Simulate stress, strain and displacements in an composite angle-ply laminate subjected to uniform axial extension, anticlastic curvature and thermoelastic deformation.

Free-Edge Elasticity Solution: Tool Taxonomy and Evaluation

13 May 2013 | White Papers/Research Documents

A review of the free-edge elasticity solution tool, including tool taxonomy and evaluation.  An overview of the solution development is provided, followed by numerous examples of tool use and evaluation.  The document concludes with an evaluation of the tool maturity level.  The...

Global Composites Experts Webinar Series

12 Aug 2020 | Series | Contributor(s): Johnathan Goodsell

The webinars examine the history, present capabilities, and future of composites science and technology. The goal of the series is to accumulate the vast knowledge of composites that has been developed over the past 50 years and to make it available to the global composites community. Each...

Halpin-Tsai Micromechanics Model

13 May 2013 | Tools

Calculate homogenized lamina properties from fiber and matrix properties

HyperSizer for Composites: Insanely Fast Laminate Optimization

13 May 2013 | Tool Information

95% of users, without user manual, and without instruction, will be able to import their FEM and produce optimum composites laminates that satisfy all analyses to all load cases within the first 10 minutes. Your automatically updated model will have minimum weight and fully producible laminates...

Imparting Robustness to Out-of-Autoclave Prepregs

09 Mar 2023 | Online Presentations | Contributor(s): Johnathan Goodsell

Autoclaves have long been used to ensure robustness in the production of composite parts. However, they present a production bottleneck, as well as high capital and recurring costs. Out-of-autoclave prepregs were introduced to allow oven curing and thereby address some of these issues. These OoA...

M3 – A Sustainable Approach to Vehicle Light-weighting with Composites: Methods – Materials – Manufacturing

07 Apr 2023 | Online Presentations | Contributor(s): Johnathan Goodsell

The presentation will introduce our house of competence, KIT and Fraunhofer ICT and introduce our MMM approach to engineered lightweight solutions for specific industries. This comprises of the development of virtual process chains, material and manufacturing solutions for relevant technologies...

Master Laminates to Simplify Design, Manufacturing, and Testing of Composites

12 Dec 2022 | Online Presentations | Contributor(s): Johnathan Goodsell

Composite materials and structures have traditionally been viewed as more complicated than metals. With master stiffness and failure envelopes composites are as simple as metals. Stiffness of laminates can be split into two part: one for trace that represents the total stiffness capacity; one for...

Multiscale analysis of multilayer printed circuit board using Mechanics of Structure Genome

23 Jan 2019 | Publications

The structure of Printed Circuit board (PCB) is very complicated because it consists of woven composites and custom defined conducting layers. To improve the reliability of PCB, it is critical to predict the constitutive relations accurately. This study by implementing Mechanics of Structure...

Multiscale Modeling of Damage Mechanics of Fiber Reinforced Polymer Composites From Micro- to Macroscale: The (Virtual) Reality and Challenges Ahead

13 May 2022 | Online Presentations | Contributor(s): Johnathan Goodsell

Multi-scale modelling of composites is a very active topic in composites science. This is illustrated by the numerous sessions in the recent European and International Conferences on Composite Materials, but also by the fast developments in multi-scale modelling software tools, developed by large...

Novel Powder Epoxy Composites for Thick-Section Structures

25 Jan 2021 | Online Presentations | Contributor(s): Johnathan Goodsell

This seminar discusses the ongoing work at The University of Edinburgh on the processing, design and testing of thicksection composites for industrial structures such as large wind and tidal turbine blades, via powder epoxy resin systems. Thick-section composite parts are difficult to manufacture...

Practical Developments in Multiscale Modeling of Composites

07 Apr 2021 | Online Presentations | Contributor(s): Johnathan Goodsell

Validated models (be they data driven or physics based) can accelerate the design, certification, and ultimate deployment of novel materials and structures by allowing rapid iteration and virtual experimentation while at the same time minimizing the need for expensive and time consuming physical...

Recent Developments in Computational Approaches to Model Laminated Composite Shells and Damage and Fracture in Solids

16 Feb 2021 | Online Presentations | Contributor(s): Johnathan Goodsell

In this lecture, two different topics of considerable interest to composite materials and structural mechanics communities are discussed. The first topic deals with the development of locking-free shell finite elements with thickness stretch for the nonlinear analysis of isotropic and laminated...

Rheology of Carbon Fiber Thermoplastic Polymer Composites

26 Apr 2021 | Online Presentations | Contributor(s): Johnathan Goodsell

The rheology of fiber–reinforced thermoplastic composites will be presented with specific focus on several topics studied over the past three decades. Interest in the elongational viscosity of collimated, discontinuous fiber systems was initiated by the introduction of impregnated,...

Structural Self-sensing Based on Measuring the Resistance, Capacitance or Inductance of the Structural <aterial, Without Sensor Incorporation

06 Nov 2023 | Online Presentations | Contributor(s): Johnathan Goodsell

Structural self-sensing refers to a structural material sensing itself without sensor incorporation. Compared to sensor incorporation, advantages include low cost, high durability, large sensing volume and the mechanical properties being not degraded. The self-sensing ability makes the structural...

Sustainable Manufacturing of Composite Materials

21 May 2021 | Online Presentations | Contributor(s): Johnathan Goodsell

The growing use of composite materials in aerospace, transportation, recreational products and renewable energy production manufacturing has created a critical need for low-cost sustainable manufacturing methods. The current methods of consolidation and cure are not compatible with the projected...

TexGen4SC

13 May 2013 | Tools

Modeling of woven fabric composites generated by TexGen using SwiftComp

The Challenges of Determining the Strength of Composites

24 Nov 2020 | Online Presentations | Contributor(s): Johnathan Goodsell

Why are there such large differences in reported strengths of composites? Some of the reasons are the definition of strength, material variability, poor test methods, and subtle variations in carrying out the tests. But there are other important factors that affect strength that are not...