Efficient Engineering Based Modeling of Layered Composite Structures
This presentation is by Program Manager Rob Jopson.
It’s a given that the simulation models we build are intended to capture and predict physical behavior, the data used to create them is not always representative of the manufacturing process used to build the physical part. For layered composite parts in particular, this mismatch can cause significant overhead in managing the simulation data as the model is created and evolves. To solve this problem, Altair’s ply-based modeling methodology strives to maintain a 1:1 relationship between the simulation data and the manufacturing process, independent of solver. The latest developments of this methodology will be presented as a workflow in the new Composite Browser, available in HyperWorks.
The recording is about 18 minutes long and was originally presented at the 2020 ATCx Composites.
End-to-end Workflow for Modeling Layered Composites in HyperWorks
This workshop on end-to-end workflow for modeling layered composites in HyperWorks was conducted by Program Manager André Möenicke. The recording is about an hour and 37 minutes long, and and was first presented at the 2020 ATCx Composites.
Molding and Structural Simulation of Injection Molded Parts
This workshop on molding and structural simulation of injection molded parts was conducted by Frank Ehrhart, EMEA Technical Specialist - Material Engineering/Multiscale Designer. The recording is a little over an hour long, and and was first presented at the 2020 ATCx Composites.
VABS: Modeling Composite Beam-like Structures with 3D FEA Fidelity
Variational asymptotic beam section (VABS) is a unique technology continuously funded by the US Army since 1988 and it has become a tool of choice in the helicopter and wind turbine industries for modeling composite rotor blades. With analysis of a finite element meshed cross section, VABS can compute the best set of beam properties for 1D beam analysis and also accurately recover 3D stress/strain distribution over the cross section. VABS has been integrated with HyperWorks and OptiStruct for Altair users to take advantage of this powerful technology for better design and analysis of composite beam-like structures.
The recording of the presentation by Dr. Wenbin Yu, CTO of AnalySwift, is almost 20 minutes long, and was originally presented at the 2020 ATCx Composites.
End-to-end Workflow for Modeling Layered Composites in HyperWorks
This workshop on end-to-end workflow for modeling layered composites in HyperWorks was conducted by Program Manager Rob Jopson. The recording is about an hour and 32 minutes long, and and was first presented at the 2020 ATCx Composites.
Material Characterization / Virtual Testing
This workshop on material characterization/ virtual testing was conducted by Jeff Wollschlager, VP of Composites Technology. The recording is about an hour and 32 minutes long, and and was first presented at the 2020 ATCx Composites.
Composites at Altair
This presentation is by Markku Palanterä, Director Composites Business Development, Altair
The composites design and simulation suite by Altair is actively developed with a holistic view to cover all stages of the process from material modeling all the way to the certification of composite structures. On the material modeling side, the focus is on continuous further development of Altair’s multiscale modeling technology for continuous fiber composites and injection molded plastics, but not forgetting further application areas, such as additive manufacturing. The ply-based composite modeling in Altair HyperWorks has recently undergone a major update to achieve an improved, more efficient modeling workflow. This together with planned further developments tie the modeling even better with the manufacturing to create realistic models of composite components as built. Altair’s solver technology for implicit and explicit analyses can utilize multiscale material models to accurately describe composite material nonlinear behavior up to failure. Altair’s unique composites optimization technology is being enhanced with the repeat laminate concept that provides added efficiency and user control over lay-up design. To further complement the idea of an integrated system with all the necessary composites capabilities, the Composite Stress Toolbox has been introduced in HyperWorks to support design and certification.
The recording is about 22 minutes long and was originally presented at the 2020 ATCx Composites.
Multiscale Methods: from Theory to Practice
In this presentation, Dr Jacob Fish, Professor, Columbia University, introduces some of the key concepts and approaches in multiscale modeling, highlights recent advances aimed at developing practical multiscale tools, and survey the current landscape in multiscale modeling ranging from linking atomistic-to-continuum and continuum-to-continuum scales, physics and data-driven multiscale approaches, and applications in automotive, aerospace and biomedical industries.
The recording is about 41 minutes long and was originally presented at the 2020 ATCx Composites.
Improved Workflow with Integrated Composite Stress Toolbox and Certification
This presentation is by André Mönicke, Program Manager
Classical composite analysis and certification methods continue to be used in a significant share of the composite design process. In particular, applying classical methods early in design, and integrating them with finite methods as soon as possible can allow faster decisions which will be rewarded when it comes time for certification. Altair’s latest developments to respond to those needs will be presented, covering the Integrated Composite Stress Toolbox and a Certification framework available in HyperWorks.
The recording is about 20 minutes long and was originally presented at the 2020 ATCx Composites.
Increasing the Efficiency of Damage Modeling for Filament Wound Pressure Vessels through Multiscale Simulation
This presentation is by Dávid Migács, R&D Engineer at CIKONI GmbH.
A key design issue for new hydrogen-based vehicle drive systems is assuring safety of the start-of-the-art polymer lined, carbon fiber overwrapped vessels working at pressures over 700 bar. Cikoni will describe how a multiscale approach gives a better estimation of burst pressures and insight into damage mechanisms for different laminate layups, at both the macroscopic and micromechanical levels, to validate simulation models for structural optimization of layups, along with life predictions.
The recording is about 28 minutes long and was originally presented at the 2020 ATCx Composites.
Curing, Cracking and Distortions in Epoxy Composites. Simulating Manufacturing Processes using Finite Element Approach
This presentation is by Dr. Tomasz Garstka and Graham Barnes, LMAT Ltd.
Manufacturing induced deformations and residual stresses are an unavoidable consequence of processing composites at elevated temperatures. A number of mechanisms have been identified causing residual stresses and distortions, including mismatch in the thermal expansion, cure shrinkage of the resin, consolidation and tool-part interaction. These mechanisms usually act collectively through the curing process and may lead to severe changes in the laminate characteristic. When cured and exposed to natural environment moisture swelling, as well as subsequent stress relaxation mechanisms lead to further geometrical changes. A novel cure simulation solver is demonstrated here with the application to typical aircraft components.
The recording is about 10 minutes long and was originally presented at the 2020 ATCx Composites.
Virtual Product Design of a Medical Autoinjector
Sweden-based Nolato, a global provider of injection molded parts for numerous industrial and medical applications has developed Nolava as a collaborative project with companies including Altair and Avalon Innovation. Nolava is Nolato’s medical self-injector, a complex electro-mechanical device housed in an injection molded fiber-reinforced plastic body. Applying Altair’s state-of-the-art integrated simulation-driven design solution showed that virtual prototyping early in the design stage of development saves time and money by resolving problems before making a physical prototype or the associated manufacturing tooling.
Accurate and Efficient Simulation of Laminated Composites
This webinar presents a complete composites workflow for all industries, the simulation-driven design workflow allows for an efficient process that enables time and money reduction.
From Composites Design to Production with Altair HyperWorks
Walk Through the Journey of Advanced Composites with Altair
Watch the on-demand recordings and find out how Altair's composites solutions can help you design and analyze structures ready for production.
Efficient Design Certification Calculations with HyperWorks Integrated Composites Stress Toolbox
In this demonstration, you will learn about efficient design and post-processing of complex laminated composite structures.
Simulating the Performance of Fiber-Reinforced Injection Molded Parts
In this demonstration we show the full process of manufacturing injection molded parts to component performance in virtual process. The outcome is injection molded parts with desired mechanical performance with minimal experimental testing.
Material Characterization of Continuous Fiber Composites
Availability of material data is a major bottleneck in simulating composite structures. Material suppliers’ datasheets or handbook values do not represent the actual properties resulting from the company’s manufacturing processes. On the other hand, doing a complete material characterization through a test campaign is very costly and time consuming.
To overcome these issues, accurate multiscale simulation with predictive capability, as provided by Altair Multiscale Designer, can be used in combination with a limited set of physical tests for developing accurate material models. Further, the accurate modeling of the composite nonlinear and failure behavior through the multiscale approach brings the accuracy of composite structural simulations to a new level.
Composite Pressure Vessel Design and Simulation
Composite Pressure Vessels (CPV) play an important role in the emerging market for the fuel cell electric vehicles, but there are also numerous more traditional application areas for CPVs. The filament winding process used for the manufacturing of CPVs ties the possible fiber paths to the manufacturing process. Hence, in the design and analysis of CPVs it is important to include both the manufacturing and structural simulation.
The webinar shows how Altair software interface with third-party filament winding simulation software to create CPV structural models using different level of details according to analysis needs. The use of multiscale material modeling provides means for accurate damage and failure predictions of CPVs.
Efficient Simulation of 3D Printed Lattice Structures
3D printed lattice structures increase the design freedom in areas of the design where, for example, the full stiffness of the material is not needed, or a specific anisotropic material behavior is beneficial. At the same time the high geometric complexity on a scale below the standard modelling element size makes it extremely difficult to include all anisotropic effects in the standard CAE model and keep the same numeric efficiency together with the same accuracy of results.
Using multiscale approaches like Altair Multiscale Designer to link microscale geometric features with a standard macro CAE model combines both scales in a highly efficient way and enables the numeric efficient and highly accurate simulation of lattice structures on component and assembly level.
Accelerating the Development of Highly Optimised EV Composite Structures through Multiscale Technology
James Eves, Team Manager at Altair presents at the UK e-Mobility seminar 2019. Multiscale methods to speed up the composite design process. Providing confidence in early design studies to improve the predictivity of final design evaluations.
Empowering Composites Innovation with Simulation
Markku Palentera, Director of Global Composites Business Development at Altair, delivers a presentation outlining Altair's composite design and analysis portfolio and details how manufacturers leverage these tools to empowering composites innovation through simulation.
Download the Presentation Slides
JEC World 2019 Conference - Empowering Composites Innovation with Simulation
Altair hosted a conference at the JEC World composites expo in which leading innovators across multiple industries discussed how they leverage computer-aided engineering (CAE) simulation software to design, optimize, and validate their composite structures.
Virtual Material Characterization Using Multiscale Technology
Jens Bold, Structural Analysis Engineer from Boeing Research & Technology, delivers a presentation on virtual material characterization using Altair Multiscale Designer
Download the Presentation Slides
Fiber Patch Placement Technology
Neven Majic, Executive Vice President of Cevotec GmbH discusses the use of fiber patch placement technology to produce additive manufactured composite parts.
Download the Presentation Slides
Solar Car Challenge: Pushing the Boundaries using Composites Optimization
Raphael Gerard, Design Engineer at Gurit, discusses the use of composite optimization with Altair OptiStruct to reduce weight and increase performance in a solar car challenge.
Download the Presentation Slides
Multiscale Designer, A Multiscale Material Model Development Framework within HyperWorks
Presentation by Markku Palanterä, Director of Global Composites Business Development at Altair.
While many multiscale modeling frameworks exist, Multiscale Designer provides an unmatched combination of computational efficiency and predictive accuracy. Instead of implementing direct homogenization (accurate but computationally inefficient) or some other classical homogenization method (computationally efficient but inaccurate) Multiscale Designer utilizes 3D FEA Unit Cells with a Reduced Order Model (ROM) technique that allows for BOTH predictive accuracy and computationally efficiency.
Development of Super Lightweight Pedal Brackets for Mazda Motor Corporation
Presentation by Hideyuki Inaba, Asahi Kasei.
Asahi Kasei fuses topology optimization technology and resin design technology, and developed superlight weight pedal bracket for Mazda Motor Corporation. Although the metal brake bracket for the current MX-5 is lightweight, we could propose a lightweight design that is reduced by over 80% by optimizing it for plastic. In addition, we proposed a very small and super lightweight plastic design for brake pedal bracket, clutch pedal bracket and clutch pedal for newly developed models. This time we will introduce the breakthrough design of these parts and present a development history
Efficient and Accurate Material Engineering
The focus of the seminar is in introducing Altair Multiscale Designer, a framework for efficient and accurate multiscale modeling and simulation of composite and other heterogeneous materials. The development and validation of multiscale material models against experimental test data is presented. The session also features a case study on the development of an ultralight plastic replacement for a metallic automotive part with the help of topology optimization.
Presentations recorded at the Global ATC in Paris, France on October 18, 2018.
Altair Multiscale Designer Webinar: Taking Material Modeling to the Next Level
Multiscale modeling of composite materials has become a viable solution to reduce the amount of physical testing needed for accurately material characterization and to better assess the nonlinear material behavior and failure mechanisms in structural analysis.
Whether you are working with high-performance continuous fiber-reinforced composites, injection molded short fiber, or even reinforced concrete, Altair Multiscale Designer provides accurate, efficient solutions for the development of multiscale material models and simulation parts manufactured from heterogeneous materials.
This webinar gives an overview of Altair Multiscale Designer capabilities including new features now available in the latest release.
Improving Composite Design and Simulation Efficiency with Multiscale Designer
Dr. Jan-Philipp Fuhr - Managing Partner, Cikoni talks about developing a methodology to analyze and predict composite matrix and fiber failure using Altair OptiStruct and Multiscale Designer resulting in improved accuracy and simulation efficiency of their simulations.
Multiscale Designer Product Overview
Multiscale Designer can help achieving more accurate and cost saving results by looking into the individual constituent of composite materials. The tool is well suited for woven, short and long chopped fiber composites and integrates with Altair's solvers OptiStruct and RADIOSS, as well as other commercial codes.
Altair Aerospace: FE Model Setup and Validation
This webinar will cover a brief overview of all simulations done on an Altair benchmark airplane wing. All steps from CAD to CAE are discussed, starting with the generation of the geometry, including midsurface generation to meshing and mapping CFD results. The presentation concludes with post-processing and automated report generation.
Altair Multiscale Designer Datasheet
Altair Multiscale Designer is an accurate and efficient tool for the development of multiscale material models and simulation of parts manufactured from any heterogeneous material, such as continuous and chopped fiber composites, honeycomb cores, lattice structures, reinforced concrete, and soil and bones.
Towards Efficient Composite Pressure Vessel Design
Competing future vehicle concepts have drives using clean energy stored in batteries or hydrogen. On-board storage of high-pressure hydrogen gas to supply fuel cells needs weight-efficient pressure vessels utilizing composite materials, that operate safely and reliably under challenging thermo-mechanical service conditions, be affordable and meet standards.
Partnering with the Altair Composites Team, CIKONI identified the benefits of Altair Multiscale Designer™ to increase simulation efficiency by its virtual material characterization to create accurate and reliable material models for structural simulation. They applied Multiscale Designer, Altair OptiStruct and Altair ESAComp interfaced with a third-party filament winding simulation package to handle the simulation process.