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Mechanics of Structure Genome: Reproduce 3D FEA Using Simple Structural Models for Aero Structures
10 Sep 2015
This presentation is an extended lecture delivered to the Boeing FEA Community of Excellence on Sept 10th.The Mechanics of Structure Genome (MSG) has been recently developed at Purdue with the promise to revolutionize the analysis of composite structures. MSG can reproduce 3D FEA using simple...
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Multiscale analysis of multilayer printed circuit board using Mechanics of Structure Genome
23 Jan 2019
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...
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Multiscale analysis of multilayer printed circuit board using Mechanics of Structure Genome
23 Jan 2019
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...
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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): 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...
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Novel Powder Epoxy Composites for Thick-Section Structures
25 Jan 2021 | 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...
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Practical Developments in Multiscale Modeling of Composites
07 Apr 2021 | 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...
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Recent Developments in Computational Approaches to Model Laminated Composite Shells and Damage and Fracture in Solids
16 Feb 2021 | 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...
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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,...
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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...
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Structure Genome: Fill the Gap between Materials Genome and Structural Analysis
06 Jan 2015 | Online Presentations
This presentation is given at 2015 AIAA SciTech conference. A new concept, Structure Genome (SG), is proposed to fill the gap between materials genome and structural analysis. SG acts as the basic building block of the structure connecting materials to structures and the mechanics of SG governs...
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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...
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SwiftComp: Right Results Right Away
13 May 2015 | Online Presentations
This presentation gives a brief review of SwiftComp which is a general-purpose multiscale constitutive modeling code. It can bridge microstructure with the final macroscopic structural model. It takes a FE mesh of Structure Genome, which is defined as the smallest mathematical building block of...
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TexGen4SC
13 May 2013 | Tools
Modeling of woven fabric composites generated by TexGen using SwiftComp
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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...
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The Mission, Vision and Programs of the Composites Design and Manufacturing HUB
08 Oct 2014 | Teaching Materials
The presentation outlines the mission, vision and programs of the Composites Design and Manufacturing HUB as of October 2014.
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The Story of Permeability in Liquid Composite Molding (LCM): How to Devise and Validate Process Simulation Software?
13 Apr 2022 | Online Presentations | Contributor(s): Johnathan Goodsell
Permeability characterizes the capability of establishing a fluid flow through a porous medium. This lecture aims to present a summary on the state-of-the-art knowledge on permeability in LCM together with a discussion on open questions. The Story of Permeability in Liquid Composite Molding (LCM)...
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US-COMP: Next Generation of Composites Materials for Crewed Deep Space Missions
15 Dec 2023 | Online Presentations | Contributor(s): Johnathan Goodsell
Current state-of-the-art composite materials are not light/strong enough for crewed missions to Mars and beyond. Structural components of deep space vehicles require lighter/stronger materials for fuel efficiency. The NASA Space Technologies Research Institute (STRI) for Ultra-Strong Composites...
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Viscoelastic Shear Lag
13 May 2013 | Tools
Simulate the creep and stress relaxation of a uni-directional short-fiber composite.
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Woven fabrics UMAT- a coupled material model
23 Aug 2024 | Downloads | Contributor(s): Ali Roumani
One of the advantages of woven fabrics over unidirectional prepregs is their superior formability thanks to the large shear deformation capability. There exists, however, a limit on the shear deformation of woven fabrics, namely the wrinkling. Applying tension to delay wrinkling during forming...