SIMULIA Ressourcen-Center

In sharp indentation of brittle materials, a complex three-dimensional stress field evolves in the material beneath the indenter and may cause cracking. During unloading, a tensile residual stress field drives the crack to its final semi-elliptical shape. The so-induced crack can be used for e.g. crack growth experiments, but for which the initial crack size and shape have to be known. For the analysis of the crack evolution in a material subject to a complex stress field, which changes with position, time and crack advancement, the extended finite element method (XFEM) represents a useful tool.

Customer Papers

SFE 2015 SFE CONCEPT Release Announcement

Customer Papers

The maximal dynamic stresses on turbo machinery blades used for predicting end of life due to high cycle fatigue (HCF) are obtained from the correlation between an FE modal analysis and dynamic strain measurements. Still today it is rather common to use sets of strain gauges to measure the dynamic strains. A particular challenge in preparation of blade vibration measurement is the selection of locations and directions for strain gauges to be mounted, for capturing dynamic blade behavior of various mode-families.

Customer Papers

Z-set to Abaqus Efficient tools for advanced material modeling, damage analysis and crack propagation simulations

Customer Papers

The strut insulator assembly in the suspension system which supports shock absorber, spring and bump stopper takes large upward load when vehicle crosses pot hole or speed bump with high speed. As the permanent deformation of insulator bracket could cause noise problem, the development of insulator bracket strength is required. Though the main bumper stopper load applied to steel bracket directly in the inner core type insulator, there is rubber between steel bracket and bumper stopper in the cup molded type insulator. Because there could be some convergence problem caused by large deformation of rubber, the modeling and strength analysis procedure for the cup molded type insulator is set up in this study. A series of step-by-step trials would give an insight in setting up an analysis procedure of similar problem.

Customer Papers

A current key automotive industry initiative is delivery of mass savings through the use of lightweight materials, to reduce vehicle C02 emissions. Penso were commissioned by a European automotive OEM to design and manufacture a continuous fibre reinforced composite tailgate prototype. The new carbon fibre design had to meet all existing strength and stiffness targets, whilst maintaining existing A-surface geometry and all hardware. The three main parts of the tailgate considered for light weighting were the tailgate inner panel, tailgate outer panel and spoiler mechanism carrier. An optimised laminate design was developed by the engineering team using a non-linear static FE analysis performed with Abaqus/Standard.

Customer Papers

Weight reduction of car is now main issue in order to increase vehicle fuel efficiency. Among various lightweight materials, CFRP (Carbon Fiber Reinforced Plastics) is at the head because of superior stiffness and strength to weight ratio. A durability performance development process of CFRP vehicle was studied, and applied to fuel cell concept car Intrado (code name HED9) in order to check compatibility of the process. CFRP material was identified as a solution for satisfying weight lightening and performance of vehicle concurrently by comparing with general steel structure vehicle.

Customer Papers

Injection and compression molding of fiber reinforced thermoplastic materials are proven and efficient processes to produce lightweight parts for automotive applications. By adding continuous fiber reinforced composites or sheet metal, the possible range of applications can be greatly increased while retaining the advantages of the molding processes, cost efficiency and design flexibility. So called hybrids parts are used for more and more applications, especially in the automotive industry. The reinforcements are formed by the closing motion of the mold and the flow of the molding material. A novel approach is suggested using Abaqus/Explicit coupled eulerian lagrangian simulation to model combined forming and molding processes.

Customer Papers

In Co-Simulation with Abaqus Fatigue Strength Analysis of Commercial Vehicle Engine Mounts

Customer Papers

In recent years, the usage of high-strength steel is increasing in order to improve the rate of body weight reduction and the safety performance of a vehicle from crash. The Bauschinger effect is generally strong in high-strength steel sheets. Material properties used in crash analysis is conventionally treated as isotropic hardening material. However, the analysis results such as average loading and buckling wavelength from analysis deviates with those from tests, which is observed in some axial collapse problems of hat section frame that is composed of high-strength steel sheet. When axial collapse occurs in the hat cross section frame, buckling occurs along with a frame ridge rolling.

Customer Papers

Simulating Strongly Coupled Fluid-Structure Interactions using Abaqus and FlowVision

Customer Papers

Managing Large Abaqus Simulation Results for Efficient File transfer and Storage

Customer Papers

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