SIMULIA's blog

In the quest to lower environmental impact while maintaining vehicle performance, automakers and aerospace companies are knocking on the same door – that is, increasing use of composite materials in order to reduce structural mass. It can be expected that material costs will drop considerably over the next few to several years, as the capacity to produce such materials begins to catch up with the growing demand. The benefits of using these materials are well-documented, including their substantial capacity to absorb energy in an impact scenario.

The use of iSight to automate Inergy's simulations related to automotive plastic fuel tank development is highlighted by three examples: 1. the static venting simulation, where the low added value part (finding the position of valves on the tank so that the customer's specifications are fulfilled) is automated. This allows the expert to focus on higher added value tasks. 2. the tank aging simulation, which consists in computing the permanent deformation of the fuel tank caused by the plastic creep.

Typically thermo-mechanical analysis including complexities such as contacts and bolt preloads are carried out using three dimensional models. These analyses require significant time and effort in FE model building, analysis setup, solution, and results processing. It also requires special effort to ensure it is error free.

In order to get stable and accurate results element size and time step selection is very important in transient analysis. These aspects are discussed in this paper.

Mine scale finite element simulations are now a key design and planning tool for some of the

world’s largest and most challenging open pit and deep underground mining projects. Models

The automotive and heavy-duty industries are heavy users of Computer Aided Engineering (CAE) for development, design and performance optimization of their products. As a

technology driven company, the Sealing Products Group of Dana Holding Corporation utilizes

Oblique elastic impact of spheres and the related case for cylinders have been studied cases for many years in simulations of systems with loose supports, such as heat exchanger tube-support interaction, as well as granular flows and robotic task modeling. The problem is a relative simple one in the class of transient frictional contact problems in that the stresses away from the contact zone are typically neglected. The available continuum model solutions from literature show some very interesting features.

The fire resistance of steel framed multi story buildings and their ability to withstand

exposure to fully developed fire conditions without the need for all structural members to be

Due to the limitation of computer capacity and the soften of the material constitution, the nonlinear dynamic earthquake analyses of skyscrapers are not practical in engineer’s desktop, and even in the research area they are still open problems. Utilizing ABAQUS’s unique combination of implicit and explicit technologies and capable of solving large problem efficiently, the author solves the problem elegantly and practically. In the analysis model, all members and shear-walls are modeled by plastic zone model, and large deflection effects are taking into account.

The National Transportation Safety Board (NTSB) investigates accidents to identify the probable cause and to make recommendations that would prevent similar accidents. Following the collapse of the I-35W bridge in Minneapolis on August 1, 2007, the NTSB worked with the Federal Highway Administration, the Minnesota Department of Transportation and other parties with information and expertise, including SIMULIA Central, to determine the circumstances that contributed to the collapse of the bridge, completing the investigation in 15 months.

There are plans of constructing bridges longer span like Messina strait bridge. This

trend causes the necessity of discussing on the problems of instability analysis such as lateraltorsional buckling. However, lateral torsional buckling analysis of long span bridge is not

sufficiently taken yet. For that reason, we apply the Abaqus/Standard to solve the high nonlinear problem. The analysis object is Akashi-kaikyo Bridge which is the longest bridge in the world. This paper presents how to analyze the lateral-torsional buckling of long span bridge applying wind load.