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...

Composite Stiffness Property Prediction

07 Aug 2017 | Contributor(s): Joshua Morris

Micromechanical models for the composite axial tensile, transverse tensile, and axial shear are combined into one tool with the objective of comparing their effectiveness as property prediction methods.  Rule of mixtures models (ROM) and the composite cylinder model (CCM) results for...

Composites Characterization Overview

16 Apr 2015 | Contributor(s): Johnathan Goodsell

An overview of characterization methods for continuous fiber composite materials, including tensile, shear and flexural testing, open-hole and fracture, and fiber volume fraction measurement; data reduction for orthotropic material property determination.

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...

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...

Composites Manufacturing Informed Performance Through Simulation

30 Oct 2017 | Contributor(s): Byron Pipes

Presentation by Prof. Byron Pipes during Monday Lunch at ASC 32nd Technical Conference. 

Composites on the 3DExperience Platform

15 Feb 2019 | Contributor(s): Michael Texeira

Composites Process Simulation: From Fundamentals to Applications

24 Nov 2015 | Contributor(s): Corey Lynam

This is the presentation on Compro given by Corey Lynam from Convergent Manufacturing Technologies on the 2015 Composites Simulation Workshop.

Composites themoforming simulation using PAM-FORM-An example

24 Jul 2017 | Contributor(s): Tian Tang

An example showing the simulation of thermoforming composite ply using PAM-FORM. The videos of the evolutions of shear angle and temperature distribution of the composite ply during forming process are demonstrated.

Computational evaluation of effective stress relaxation behavior of polymer composites

11 Jul 2017 | Contributor(s): Tian Tang, Sergio D. Felicelli

This paper presents a micromechanics model to characterize the effective stress relaxationstiffness of polymer composites. The linear viscoelastic behavior of polymer material wasmodeled by hereditary integral. The proposed model was established based on thevariational asymptotic method for unit...

Constitutive modeling for time- and temperature-dependent behavior of composites

08 Jan 2020 | Contributor(s): Orzuri Rique, Xin Liu, Wenbin Yu, Byron Pipes

Structural integrity, durability, and thermal stability represent critical areas for adequately modeling the behavior of composite materials. Polymeric matrices are prone to have time-dependent behavior very sensitive to changes in temperature that influence the effective properties of the...

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...

Data: Physics-informed artificial neural network approach for axial compression buckling analysis of thin-walled cylinder

20 Jun 2019 | Contributor(s): Fei Tao

Buckling leads the failure of thin-walled cylinders under axial compression. Due to the manufacturing imperfection, a significant variation was observed between experimental and theoretical buckling load. The current design criteria use knockdown factor to estimate the buckling of thin-walled...

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....

Demystifying Composites Simulation for Performance

28 Jul 2016 | Contributor(s): Wenbin Yu

The presentation given in IACMI Tutorial session before the 2016 Summer Members Meeting. It tried to explain in layman terms modeling and simulation, and composites, pointed out the barriers we need to overcome to reap full benefits of simulation for composites innovation. 

Development of Fiber Microstructure during Processing of Discontinuous Fiber Reinforced Composite Products

19 Apr 2024

Discontinuous fiber-reinforced composites are a special subcategory of composite materials that are used, due to the ability to process them into parts and structures of complex shape in an automated fashion via compression and injection molding, as well as extrusion processes. Discontinuous...

DiBenedetto Equation: Tg and DOC

30 Oct 2014 | Tools | Contributor(s): Johnathan Goodsell, Matthew James Prall

DiBenedetto Equation: Glass Transition Temperature Dependence on Degree of Cure

Digimat Virtual Allowables, to complement physical testing of composite coupons

12 Feb 2016 | Animations | Contributor(s): Mira Toth, Roger Assaker

Integrated Solution to Compute Virtual AllowablesTools such as Digimat-VA are essential to the integration of composites into aerospace and automotive design. Physical testing alone cannot give engineers the versatility they need to take full advantage of composites’ potential. It is not...

Digital Disruption of Composites Manufacturing and Design

18 Sep 2020 | Online Presentations | Contributor(s): Anoush Poursartip

Composite materials and structures are an excellent example of how engineering practice often outpaces scientific knowledge. Born in the analog world of the 1960s, carbon-fibre composites manufacturing and design practice is a complex and often fragile construct that is primarily driven by the...

Digital Fabric Mechanics Analyzer

30 Sep 2016 | Downloads | Contributor(s): Youqi Wang

This is the presentation given by Prof. Youqi Wang at the 2016 cdmHUB workshop in conjunction with 31st American Society for Composites Technical Conference.