Tags: Global Composites Experts Webinar

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  1. A Semi-Discrete Model for Progressive Damage and Failure of Fiber Reinforced Laminates

    15 Nov 2021 | Contributor(s):: Anthony M Waas

    High-strength and high-stiffness carbon fiber-reinforced polymer composite laminates (CFRP) are being increasingly used for primary load bearing structures in many industries. The most common material system used is based on thermoset resins (matrix material), which come in the form of convenient...

  2. Adaptive Multi-Scale & Multi-Fidelity Progressive Failure Analysis of Composites

    14 Nov 2022 | Contributor(s):: Tong-Earn (TE) Tay

    Although high-fidelity modeling of progressive damage has advanced our understanding of failure mechanisms in fibre-reinforced composites, such techniques are currently still too computationally intensive for direct application to composite structures. The multi-scale nature of damage in...

  3. Automating the Lay-up of Geometrically Complex Composite Structures Made from Preimpregnated Reinforcements: a Route to a Roadmap

    04 Nov 2020 | Contributor(s):: Kevin Potter

    A significant amount of research and industrial effort has been expended on the development of equipment such as automated fibre placement machines to lay-up prepregged reinforcements into structures of relatively simple geometry such as wing skins and spars, and fuselage structures. These...

  4. Bottom-up Composites Materials Design for Multifunctionality

    02 Apr 2024 | Contributor(s):: Ajit K Roy

    There are ample of evidence of materials hybridization at scale, even in nature, yields optimal respond to specific functions. In structural materials, hierarchical materials hybridization accounting for defects or porosity would offer optimal performance at reduced materials mass. Similar...

  5. Capillary Effects in Fiber Reinforced Polymer Composite Processing: A Zoom on the Flow Front

    06 Apr 2022 | Contributor(s):: Véronique Michaud

    Capillarity plays a major role in many natural and engineered systems, from nutrient delivery in plants, management of humidity in soils, to heat pipes and porous systems for spill recovery. In composite manufacturing, particularly in Liquid Composite Molding processes, capillary effects take...

  6. Composite Materials: Where We are and Where to Go (Mechanical and Electrical Properties of Polymer Composites)

    02 Mar 2022

    Composite materials have developed in the last 60 years from a just new material into a class of established engineering material with surprisingly outstanding properties. Best demonstrated as being the material of choice in the aerospace industry. The idea of fibre reinforced composites was to...

  7. Composites Forming Simulations - on Physics & Data, Accuracy & Applicability

    23 May 2023 | Contributor(s):: Remko Akkerman

    Composites Forming processes, in particular stamp forming, offer the potential of high volume manufacturing of light weight structural parts. Such parts need to be designed with the process and its requirements in mind, in order to prevent process induced defects such as wrinkling or poor...

  8. Composites in Sports: A Testbed for Cutting-edge Technologies

    01 Mar 2024 | Contributor(s):: Jan-Anders Mansson

    The use of new materials to enhance sports performance is inevitable, and the development of sports equipment and apparel stands as a significant industry. Frequently, cutting-edge materials like composites find extensive use in sports equipment and are often introduced on the playing field long...

  9. Control of Reaction Fronts for Rapid Energy-Efficient Manufacturing of Multifunctional Polymers and Composites

    04 Jun 2021

    This lecture describes a new manufacturing platform technology that allows for near net-zero energy fabrication of structural polymers and composites. The approach is predicated on the exploitation of a self-propagating polymerization reaction occurring in a system undergoing reaction and...

  10. Defect Coupling Predicting the Strength and Life of Fiberous Composite Laminates

    16 Oct 2020 | Contributor(s):: Kenneth L Reifsnider

    After more than 30 years of careful experimental investigation and exhaustive development of discrete damage analysis methods including integrated computational mechanics methods, our community knows a great deal about how discrete defects such as matrix cracks and defect growth (e.g....

  11. Emerging Role of Process Models & Simulations in Composites Manufacturing

    07 Dec 2020 | Contributor(s):: Suresh Advani

    This talk will highlight the ever increasing benefits of process modeling in Composite Manufacturing processes. First, the use of science base approach of materials processing, which integrates material parameters with transport phenomena at various scales during manufacturing to create...

  12. Fiber Orientation Prediction for Discontinuous Fiber Composites: Fundamentals and Future Trends

    08 Feb 2023 | Contributor(s):: Charles Tucker

    When composite materials with discontinuous fibers are processed into their final shape, any flow alters the fiber orientation pattern and affects the properties of the final composite. It is now standard practice to predict fiber orientation patterns and the resulting mechanical properties in...

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

    27 Jan 2022 | Contributor(s):: Nobuo Takeda

    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...

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

    10 Dec 2021 | Contributor(s):: Philippe Boisse

    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...

  15. Global Composites Experts Webinar Series

    12 Aug 2020 |

    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...

  16. Imparting Robustness to Out-of-Autoclave Prepregs

    09 Mar 2023 | | Contributor(s):: STEVEN NUTT

    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...

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

    07 Apr 2023 |

    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...

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

    12 Dec 2022 | | Contributor(s):: Stephen W Tsai

    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...

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

    13 May 2022 | | Contributor(s):: Wim VAN PAEPEGEM

    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...

  20. Novel Powder Epoxy Composites for Thick-Section Structures

    25 Jan 2021 | | Contributor(s):: Conchur O'Bradaigh

    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...