SIMULIA Ressourcen-Center

Vibration-based Structural Health Monitoring is a method to assess damage in structures, working in the principle that variations on the stiffness, mass or energy dissipation properties of the structure will alter its dynamic response. Composite laminate and sandwich structures are more often used in aircraft components. Composite damage features peculiar mechanisms, the most relevant being layer delamination in laminates, skin debounding in sandwich constructions and composite penetration. Delamination and debounding may be internal to the structure and not visible externally render difficult their assessment. These damage mechanisms will change the dynamic response of the structure that may be used to identify damage.

Customer Papers

A multiphysics simulation capability suitable for fluid-structure interaction is presented that uses the Abaqus nonlinear structural dynamics solver and the Loci/CHEM computational fluid dynamics solver. The coupling is achieved using SIMULIA’s Co-Simulation Engine technology. The Co-Simulation Engine is a software component that allows the coupling of multiple simulation domains by coupling solvers in a synchronized manner.

Customer Papers

The Simulation Automation topics often deal with chaining a wide range of software tools used by organizations to design and simulate their new products. Automatically exploring the design space, this approach is now effective in reducing the companies' design cycle time. This paper presents three robust and complete Simulia-based Vertical Applications and evaluates their contribution to design time cycles.

Customer Papers

Today manufacturing companies are more and more often characterized by a growing product and processes complexity. Projects needs the participation of a pool of companies that have to collaborate in a multidisciplinary and integrated way following a defined PLM strategy. These challenges are meant to introduce a new way of working, based on innovation and global collaboration, both internally among different disciplines and externally between operations, administration, and maintenance and its suppliers. The development engineering department works with a know-how based on models algorithms and data coming from different key-disciplines as aerodynamics, heat transfer, mechanical integrity, combustion, materials, etc. For this reason the use of these topics in a multi-disciplinary process is often difficult due to the incompatibility of notation, informatics languages and IT platforms.

Customer Papers

In recent years car manufacturers have been working intensively on new ways to improve the quality of the interior trim since it is extremely important to the customer’s perception of quality and can be a source of after-sale complaints. Consequently, the study of squeak and rattle (S&R) has become one of the main concerns for car manufacturers. Simulation of S&R phenomena is a complicated issue to reproduce virtually, because they are difficult to study using methods based on eigenmodes due to the impossibility of using contacts in this type of FE model; since modal theory is based on the hypothesis of linearity. Software providers and automotive engineering companies have been working hard to provide tools and methodologies in order to be able to analyse these phenomena in the initial development phases.

Customer Papers

Biomechanics testing of the lumbar spine, using cadaveric specimens, has the advantage of using actual tissue, but has several disadvantages including variability between specimens and difficultly acquiring measures such as disc pressure, bone strain, and facet joint contact pressure. A simulation model addresses all of these disadvantages. The objective of this work is to develop a method to simulate the biomechanics of the lumbar spine.

Customer Papers

In this paper, a new mixed Lagrangian-Eulerian approach for tire/road interaction is presented: this new methodology is based on a different road modeling principle, where the road profile is described in time domain rather than space domain. The aim is to reduce the contact problem dimension and therefore calculation time. Comparison between current practice and new approach has been developed to verify the equivalence of results.

Customer Papers

Simulation tools can play a significant role in meeting design challenges within the mining and resources sector. Potential applications range from the analysis of design and placing for individual key infrastructure potentially affected by surface or underground deformation, to the review of safety and stability of all excavations in a single model. The success of the analysis is linked to the ability to replicate realistic behavior in complex three-dimensional problems.

Customer Papers

Embankments constructed on soft soils undergo large deformations and lateral movements which results in long construction delays and premature failure. Several researches in the past have shown that Geosynthetic Reinforced Piled Embankment Systems (GRPES) is an attractive solution for such problems. This system consists of horizontal layers of geosynthetic reinforcement, soil embankment and piles. In this paper, finite element based numerical study has been carried out using ABAQUS to study the interactions between friction pile-soil-geosynthetics during and after construction of the embankment. The influences of various parameters like the geosynthetic stiffness, pile height and embankment height on the performance of GRPES has been studied in this work. The paper discusses the model details and the various results obtained along with design implications for practitioners.

Customer Papers

This paper proposes a new approach for modeling connection makeup, using a material strain-rate dependant model. Abaqus analysis examples are presented to demonstrate the use of the proposed modeling approach. The impacts of strain rate on connection structural integrity and sealing capacity are discussed. The paper demonstrates that the proposed modeling approach provides a more accurate correlation to field and test data and presents a more realistic representation of connection behavior at makeup and under subsequent load conditions.

Customer Papers

One of the capabilities of Isight is to create processes to involve and control external programmes. Therefore it’s possible to embed several commercial and in-house tools and combine them with each other. In this way processes can be generated which contain different disciplines and working focuses. They can support the search for designs which solve given issues, saving time and finding better designs (compared to manual iteration between disciplines).

Customer Papers

The accurate modeling of offshore flexible risers behaviour remains a great challenge because of their complex internal structure, the variable nature of the loads along the pipe, and the interactions with structures used to limit the pipe curvature. Technip and IFP Energies Nouvelles have been codeveloping for many years models dedicated to stresses calculation in the armour wires, to assess the flexible lifetime. These models must account for a large number of potential inner contacts as well as external contacts. This paper presents implicit and explicit Abaqus simulations of a cyclic bending test of a flexible pipe with internal pressure and tension. The simulation results are successfully compared to experimental data.

Customer Papers