Helius Composite 2017
Edel Dieringer
With an expansive database of composite materials, Helius Composite software can help you to simulate the material behaviour of compound components. Built-in solvers minimise the need to have secondary finite element analysis (FEA) software to analyse material characteristics more quickly.
With an expansive database of composite materials, Helius Composite software can help you simulate the material behavior of compound components. Built-in solvers minimize the need to have secondary finite element analysis (FEA) software to analyze material characteristics more quickly.
Helius Composite software offers detailed information on composite material behaviour without the complexities of finite element analysis. Use Helius Composite to easily integrate materials into your Digital Prototyping process.
Discover how Helius Composite software can help you streamline composite engineering and manufacturing processes. Use customizable libraries, analysis tool sets, and reporting features to build, explore, and analyse the behaviour of composite materials, laminates, and simple structures.
The finite element analysis (FEA) software package Abaqus is a very useful and user-friendly program for executing a FEA of a composite part. Part of what makes Abaqus so user-friendly is the multiple ways you can define a composite layup schedule. Inside the Abaqus/CAE interface, the analyst has two methods of defining a layup schedule for a composite laminate that they want to assign to a set of elements in a composite part. The two methods of doing this are to create aComposite Layup or to create a Composite Section.
Abaqus recently introduced the Composite Layup tool as part of CAE interface (I believe it is part of version 6.9x and up). The Composite Layup tool is an enhanced interface for defining composite layups inside of CAE. It is an upgrade over defining a composite sections the traditional way for the following reasons:
The one downside of creating a Composite Layup is it can only be used on the part for which it was created for. Therein lies the advantage of creating a Composite Section. Because it is a section, just like any other section in Abaqus, it can be assigned to any part created inside of a model. The downside of creating a Composite Section is that there are not the ply manipulation tools that are available inside the composite Layup editor. Another downside is after the section is created and assigned, the additional step of creating an Orientation for that composite section is required. Not a huge deal, but an additional step that can be accidentally overlooked nonetheless.
Since 1996, CompositePro has been a tool that engineers have used to improve their design of composite laminates. CompositePro provides fast and easy access to a multitude of composite analysis tools based on Classical laminate Theory (CLT), micromechanics and leading failure criterion. It includes engineering tools for plate, tube/beam, and sandwich panel analysis including vibration, buckling, stability and bending.
Autodesk Helius PFA is an add-on for commercial FEA programs and provides multiscale simulation that determines failure at the constituent level while also predicting structural response at the composite level. Multiplefailure criteria are available to enable users to view damage effects in the fibre and matrix and identify multiple modes of failure including delamination.A composite-specific material degradation method has been applied to handle the nonlinear, progressive failure of composites while improving solution convergence and simulation run time. Helius PFA supports multiple analysis conditions, including dynamic and fatigue loading and supports multiple material types including chopped and continuous fibres, unidirectional lamina and various woven fabrics.
Autodesk Helius Composite is a standalone package that offers a collection of tools for conceptual design and analysis with composites.Users can select from an expandable library of materials to build lamina and laminates, and then calculate their material properties using fundamental tools such as micromechanics and Composite Laminate Theory. The Utilities menu contains several additional tools such as calculators for determining fabric thickness, radius of curvature and spring back.
But we want to determine what the maximum tensile and longitudinal strengths are for a laminate that I designed. It is a property of the wind sequence created by me, not the user-applied loads or cross sectional area of the composite. I am looking for exactly what the FIRST PLY FAILURE SURVEY gives you. You enter in the laminate sequence (created by me) and then the program tells you what stresses that the first ply of composite will fail at. I want that to go farther and tell me what the ultimate tensile and compression stresses will be on this tube. Really I need a last-ply failure survey. Does Simulation Composite Design do that?
Firehole Composites (formerly Firehole Technologies, Inc.) was a supplier of computer-aided engineering (CAE) software and consulting services specializing in analysis of composite materials. Founded in 2000, the company's mission is to provide enabling technologies to further the widespread use of composite materials. Their products include Helius:MCT (a multiscale simulation tool for composite progressive failure analysis), Helius:CompositePro (a classical laminate theory and simple structural analysis tool), Helius:MatSim (an online micromechanics lamina simulator), and Prospector:Composites (an online composite material properties database hosted by IDES Inc.).
Firehole Composites began in the academic research of composite material analysis during the mid-1990s. The core technology was part of an academic research project underway in the Mechanical Engineering Department of the University of Wyoming. In 2000, a number of graduate students and faculty at UW saw the commercial potential of the technology and founded Firehole Composites. Firehole Composites continues a collaborative relationship with the University of Wyoming and sponsors ongoing research into composite analysis technology.
Hello all, I would like some help on how to define material properties of G40-800-24K reinforced epoxy Cytec 5276-1 for a delamination project that I am doing. I have the mechanical properties of the composite but from watching videos it seems I need the (Lamina) engineering constants of this material for ABAQUS.
Dassault Systems offers composite simulation as part of its CATIA 3D Experience platform, and Siemens PLM Software made an aggressive play to address simulation of composite materials with its 2011 acquisition of Vistagy, which has a huge following in the aerospace sector.
There are many types of joining techniques and their applications are based on the required strength of the joints. The most common techniques are mechanical fasteners (e.g., rivets, bolts, pins, and screws), adhesive bonding, and hybrid joining [3,4,5]. On one side, the great advantage of mechanical fasteners is their ease of assembling and disassembling while allowing for reliable inspection. Despite these advantages, composite structures are more vulnerable to the high stress concentrations around fastener holes compared to ductile metals [6]. Aniello et al. [7] presented experimental investigations on shear behavior of riveted connections in steel structures, considering various parameters such as load eccentricity, variation in net-area, plate width, and number of rivets. Their results showed a considerable out-of-plane deformation for unsymmetrical joints, where the effects of bending were confined to the regions where plate discontinuities occurred. Jiang et al. [8] studied the corrosion characteristics of CFRP/Al riveted structures and analyzed the relationship between the microstructure and mechanical properties of these joints. Their results showed that the corrosion pits on Al sheet were mainly observed at the edges of the overlap area, which was due to larger potential difference between CFRP and Al. Li et al. [9] investigated the static and dynamic behavior of composite riveted joints under tension and observed that the total energy absorption of the composite riveted joint increases with an increasing loading rate. A model of the process of cold-driven rivets was investigated by Deng et al. [10], mainly to identify the origin and magnitude of the resulting clamping force exerted by the rivet on a lapped sheet.
On the other hand, adhesive bonded joints have gained more attention because of their high strength, uniform load distribution, and cost-effectiveness [11,12,13]. In practical applications, adhesive bonded joints have high stress concentrations at the ends of the overlap area, where maximum shear stresses occur compared to middle regions of the overlap. Peeling stresses are also higher at the ends of the overlap, and may cause the adhesive bonded joint to fail [14]. The thickness and type of adhesive play a major role in achieving high joint strengths, which have been studied by various researchers [15,16,17]. The quality of the adherend manufacturing process and the overlap length of the adhesive bond are also important in the design of these joints [18]. The stress concentration at the ends of the overlap can be reduced by increasing the overlap length up to a certain magnitude, beyond which, it no longer has an effect [18]. Hao et al. [19] investigated the behavior of CFRP-steel bonded joints at elevated temperatures, where significant effects of temperature-dependent bond-slip relation were observed under mode II loading. Li et al. [11] studied pre-preg bonded composite single-lap joints. The failure modes of adhesive bonded joints depend on the type of adhesive (brittle or ductile). Meng et al. [20] studied adhesively bonded steel butt joints under tension, torsion, and combined loading and reported failure modes and envelopes. Their experimental results showed that the failure mode of adhesive bonded steel joints shifts from a cohesive failure mode with subsequent adhesion failure under pure-torsion loading to a tensile cohesive failure under pure tension. Olcay et al. [21] validated a simple but effective design to improve the strength of thick adhesive composite strap joints with experiments and finite element analysis (FEA). Ribeiro et al. [22] studied the damage analysis of composite-aluminum adhesive bonded single-lap joints and discussed the FEA of adhesive bonded joints with cohesive zone models (CZM). Similarly, Ye et al. [23] studied the tensile failure behavior of adhesive-bonded composite single-lap joints with three-dimensional explicit FEA. Moura et al. [24] studied cohesive and continuum damage models applied to fracture characterization of bonded joints under loading in pure mode I and mode II.
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