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Electrum

Electric motorcycle Electrum developed using MODSIM on 3DEXPERIENCE platform

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Defects Assessment of Composite Laminates from Scanning to Modeling

Defects induced in the fabrication and application of composite laminates have substantial influence on the performance of composite structures. The effects of these undesired defects on the static and fatigue mechanical behavior are very important in the reliability and sustainability assessment. An integrative approach is developed to evaluate the major defects including voids and ply waviness from Computed Tomography (CT) scanning to multiscale modeling. Based on the CT scan results, voids and ply waviness can be captured quantitatively. These defects can be analyzed by using the represented volume element (RVE) model and statistical model in micro scale and their effects on the material properties (stiffness, strength and fracture toughness) are included into the macroscale model using a possibilistic uncertainty model.

Customer Papers

3D-FE Implementation of Evolutionary Cyclic Plasticity Model for Fully Mechanistic Fatigue Life Evaluation

Large uncertainties exist in the current methods of fatigue life evolution for nuclear components due to the overdependence on approaches that use empirical stress/strain-life (S~N) curves. Argonne National Laboratory (ANL), under the sponsorship of Department of Energy's Light Water Reactor sustainability (LWRS) program, seeks to develop a fully mechanistic approach for more accurate fatigue life estimation of nuclear components. To this end, ANL has developed evolutionary cyclic plasticity models for reactor steels based on uniaxial fatigue tests to capture the material aging behavior such as stress hardening/softening. In this paper, we introduce an implementation of the evolutionary cyclic plasticity model within the commercial finite element software ABAQUS through the use of an in-house developed user material subroutine.

Customer Papers