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COMPOSITE DESIGN How SIMULIA products accelerate Composite Design process

Customer Papers

Nowadays the automatic transmissions need to be an economically optimized system. To meet CO2 goals, the transmission has to be more efficient. One possibility is to raise the operating pressure in the hydraulic fluid. But this leads to a higher leakage rate and thus larger pressure pumps are required. To overcome this dilemma several innovative solutions were needed to develop a new generation of separator plates. These replace the conventional separator plates in new high efficient automatic transmissions. Lower leakage rates at higher pressure demand a more effective sealing solution. If this solution works particularly efficient it could provide an opportunity to reduce the amount of bolts required for the joint. This opens the possibility of more flexible design of the hydraulic channels.

Customer Papers

A computational model of the human head has been developed by Simpleware and the U.S. Naval Research Laboratory (NRL) to simulate head impact. The head model was generated using high-resolution scan data, segmentation and image-based meshing techniques, and has been used in Abaqus for a range of simulations. The NRL/Simpleware head model addresses several key limitations of existing techniques for head impact modelling, most notably mesh adaptability for different applications. This paper will focus on the development of the modeling techniques used to create the NRL/Simpleware head model, and its use in Abaqus/Explicit to demonstrate accuracy and feasibility against a widely used experimental benchmark in impact loading and through investigation of potential brain injury under blast overpressure loading.

Customer Papers

GN RESOUND LIFE SCIENCES

Customer Papers

Automotive wheel bearing is an essential component of the vehicle. It transmits engine power into wheels and supports vehicle weight. In recent years, the demand worldwide for weight reduction in automotive part in order to improve fuel efficiency has increased. Despite of it, automakers are requiring that wheel bearing performance in the areas of stiffness, strength, and life be maintained or improved. In this study, weight optimization for automotive wheel bearing was performed. Design variables were the bearing geometry and bearing internal specification. Cost function was bearing weight and constraint conditions were bearing life and stiffness. CATIA was used to model the geometry and Abaqus was used to carry out the stiffness analysis. To construct the optimization formulation, the commercial optimization software, Isight was used.

Customer Papers

S-Life - Integrated Static and Fatigue Strength Assessment with Abaqus According to German FKM Guideline

Customer Papers

The traditional process for assessing the strength, stiffness and modal performance of a chassis component such as a suspension link, and iterating the design to meet targets in the optimum way, is time consuming. Some design engineers experimented with using integrated analysis in CATIA V5 to assess and iterate the design more efficiently. Success was limited due to the complexity of setup and poor correlation with the results obtained by CAE specialists using the standardised process. This paper outlines how a combination of CATIA V5 analysis and scripting was used to solve these problems for a number of component types. The success of the tools released to date and the advantages of using them will be discussed. Guidelines for identifying processes which are suitable for automation will be presented.

Customer Papers

Materials Gateway 3.0 for Abaqus/CAE - Enterprise-wide Materials Knowledge for Abaqus Users

Customer Papers

In the deep drawing tools for forming car body parts, heavy blankholders are used to prevent buckling and wrinkling of the blank. During each press cycle, those large masses need to be lifted, raising thereby the structural dynamic load on the deep drawing tool and on the press. Therefore a detailed knowledge about the blankholder’s lift-off event is essential for an accurate and robust design of forming tools. In this paper, a dynamic finite element method (FEM) simulation of a blankholder’s lift-off in a selected automotive deep drawing tool is presented enabling identification of regions of critical stresses. The FEM model is built within the Abaqus/CAE environment and solved with Abaqus/Standard.

Customer Papers

Peen-forming is a practical technique for forming of metallic aeronautical components. The method performance of this cold-working procedure mainly depends on the efficient selection of process parameters. Currently, trial and error procedures, based on operators' experience are used to determine peen-forming intensity patterns. This expensive and time consuming method could be avoided by the accurate estimation of peen-forming process parameters. The absence of a predictive tool to determine these parameters makes difficult to give a quick response to market for the industrialization of new components.

Customer Papers

This research work aims at modeling the mortar-block assembly for analyzing the potential occurrence of mechanical problems at interfaces as the consequence of an eventual incompatibility. The study considers a heritage building located in Morocco. The authors focus their attention on a representative part of the building and perform numerical simulations, studying the stress repartition inside the masonry. For carrying out efficient analysis, the mechanical characteristics (Modulus of Resistance, Modulus of Elasticity) are collected through non-conventional testing techniques dedicated to the field of Heritage Conservation that are briefly described. The scenario considered in the proposed study concerns a bearing wall restored with a non-adequate mortar. The goal of the modeling works is to compare the repartition of internal solicitations between the original situation and the restored one in order to quantify the risk, for materials that should be conserved, associated with the “stress shielding” phenomenon and to justify the particular attention to be paid for the choice of a specific mortar for interventions to be carried out on the concerned building.

Customer Papers

The use of a stitched triaxial fabric in composite forming applications is investigated. The fabric of interest consists of three layers of stitched fibers, which were originally oriented at [-60°/0°/60°]. The tensile, shear, and frictional behavior was investigated experimentally. Conventional shear frame testing methodology assumes that the yarns are intially mutually perpendicular. This assumption is not valid for this particular fabric geometry and must be adjusted accordingly. The determined material behavior was implemented into a user-defined material subroutine within a discrete mesoscopic finite element model built in Abaqus/CAE. Different element types were investigated to represent the fabric and determine ideal mesh configurations to best capture the mechanical behavior of the fabric.

Customer Papers

Quieter aircraft and automobiles. More efficient autonomous vehicles. These are a few...

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Our users have spoken! In an effort to provide more technical content...

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In December 2018 CATIA and SIMULIA held their first cross brand event,...

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In a new series, we are featuring our partners and the work...

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Recently, we had the opportunity to speak with simulation champion, Allan Zhong,...

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As a design and simulation consulting company based in Ann Arbor, MI,...

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This post originally appeared in the Navigate the Future blog and is authored by...

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The Simulation portfolio in 3DEXPERIENCE R2019x brings a variety of enhancements and new capabilities to...

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Engineers are using sophisticated models to clean plastic debris from oceans, optimize...

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The years between World War I and World War II were remarkable...

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Students from all over France covet the supreme title of the Composite...

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SIMULIA offers an advanced simulation product portfolio, including Abaqus, Isight, fe-safe, Tosca, Simpoe-Mold, SIMPACK and more. The SIMULIA Learning Community is...

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