SIMULIA 리소스 센터

Today, snow load damage test is mainly used to decide on roof panel’s style and its thickness. This test is much more important for a light commercial vehicle (LCV) because LCV has bigger roof area, more straight style and as a result of these two properties it has heavier roof panel than the other vehicle. Moreover, simulation is quite difficult and its tolerance is not less than 15 % because of not only panel’s post buckling behavior and material nonlinearity but also deformations on panel which highly depend on manufacturing process. In this study, the analysis parameters have been investigated and a correlation with physical test results has been set.

Customer Papers

This paper presents an Abaqus/Explicit simulation of the impact event when a golf club hits a golf ball. This is a challenging subject for finite element simulations because of it is characterized by high strain rate behavior. The simulation emphasizes accurate material characterization and realistic model construction. Specifically, an advanced nonlinear viscoelastic material model from Veryst Engineering’s PolyUMod library with strain rate dependence is calibrated with high-rate testing data to accurately capture the highly nonlinear behavior of the golf ball materials during impact. At the same time, a detailed finite element model of the golf ball is constructed with multiple layers of structure.

Customer Papers

Abaqus is often used for soil mechanical purposes to solve complex boundary value problems. Simulations of geomechanical boundary value problems are rather complex because of the complexity of the material which incorporates stress dependent material behaviour or different stiffness for loading and unloading conditions for example. Furthermore, typical soil consists of three phases including the soil skeleton, pore water and pore air which lead to complex interaction. Moreover, the loading conditions typical in geomechanics often cause large deformations of the soil continuum which has to be considered in the choice of the appropriate calculation tool.

Customer Papers

Developing an expandable liner hanger system for the oil and gas industry represents an engineering challenge. Finite element analysis (FEA) using Abaqus can be effective at reducing development time and cost, and for optimizing the design with fewer prototypes. This paper summarizes the use of Abaqus/Explicit for FEA of an expandable liner hanger system that comprises an adjustable swage to expand the hanger body, slip ring to hang, and a packer to seal in a variable-diameter casing. Using the Abaqus-based FEA results, potential designs were evaluated on performance parameters such as required expansion force, hanging capacity, wickers penetration, and seal integrity.

Customer Papers

Due to the extreme increase in computational power over the last years, numerical analyses are gaining more success in designing composite structures and components, taking into consideration complicated failure mechanisms. One crucial aspect is low velocity impact. It can produce devastating damage that can lead to premature failure of the component/structure. However, modelling the three-dimensional impact damage and its consequences is still a challenge. In this paper the most advanced features currently available in FE analysis (Abaqus/Explicit) have been used to predict the behaviour of a composite structure under low velocity impact.

Customer Papers

Simulation of railway track maintenance trains at MATISA - MultiBody Simulation User Group Meeting

Brochures

In this paper, a correlation between simulation and a full crash test is presented. In order to achieve good agreement in the correlation, several Abaqus analysis techniques are evaluated. First of all, the soil mesh undergoes important distortion, so we need to go beyond the regular Lagrangian mesh and evaluate other approaches such as Arbitrary Lagrangian-Eleurian (ALE) and Coupled Eulerian-Lagrangian (CEL). Secondly, an implicit-explicit scheme is necessary in order to take into account the bolt-preloading, which has proven to be critical in the overall behavior of the system. Finally, subcycling is adopted in order not to penalize the global time increment due to the detailed bolt assemblies.

Customer Papers

Prefabricated Bridge Elements and Systems (PBES) are widely used in accelerated bridge construction (ABC). One such example is the Parkview Bridge located in Kalamazoo, Michigan. The bridge has four spans with AASHTO Type III girders and full-depth deck panels that are post-tensioned in the longitudinal direction after grouting the joints between panels and forming the longitudinal joint with cast-in-place concrete. Structural system behavior is further complicated due to skew and the continuous nature of the post-tensioned deck panels that are connected to the girders using a discrete stud system and grouted haunches.

Customer Papers

This presentation will demonstrate how Abaqus can be used to drive design decisions at an early stage in the engine development process. Caterpillar is committed to using virtual validation methods within its engine design and development process. This has several benefits, namely, reducing the cost of numerous design iterations, ensuring that designs are durable and fit for purpose and also compressing the time between concept and production. Caterpillar has employed virtual methods for over 35 years, using a mix of commercial FE software supported by internal codes. Abaqus has been used within Caterpillar from 1995 and since then has become the core FE code for engine analysis.

Customer Papers

The Finite Element Method (FEM) has been used in recent years to simulate various root anchorage effects. This study aims at using the FEM to demonstrate the impact of individual root models in anchorage process with consideration to different rooting patterns and to estimate the stress distribution in soil during the pulling out process. The FEM was used to carry out the 3D simulations of root pulling-out in unsaturated sandy silt soil. The anchorage model consists of a root system embedded in a soil block. Six root patterns were used and individual roots were removed to determine their contribution to anchorage

Customer Papers

Increasing demand for the supply of oil and gas creates great challenges in the design of subsea pipelines. Pipelines that traverse a rough seabed terrain or lay over pipe supports may have large spans of up to several hundred metres where there is no contact between the pipeline and seabed. The behaviour of these is often investigated within Abaqus using dynamic analyses of models primarily constructed of pipe elements. Pipelines that transport multi phase flow potentially involve slugging issues. Slugging issues occur due to the variation of the content density of the pipe which can introduce changes in the loading and inertia of the pipeline giving rise to pipeline fatigue failure.

Customer Papers