Orthotropic steel decks (OSD's) are susceptible to fatigue failure due cyclic loading. Often cracks found in the joint between deck plate and trough. Due welding process, residual stresses present around joint. In this paper, effect of on crack propagation rate has been evaluated. First, a FE model made predict validate stress field OSD welding. The validation is comparing measured data at surf...

The assessment of fatigue crack propagation steel structures is essential and important especially to improve the application high strength in construction. load ratio R, reflecting mean stress effects, will be changed with extension complicated geometry. In this paper, Walker equation employed fit rate grades S355 S690 based on experimental data literature incorporate effects. material paramet...

To cite this version: Lasry, Jérémie and Renard, Yves and Salaün, Michel Stress intensity factors computation for bending plates with extended finite element method. (2012) International Journal for Numerical Methods in Engineering, vol. 91 (n° 9). pp. 909-928. ISSN 0029-5981 Open Archive Toulouse Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse rese...

Current neuronavigation systems cannot adapt to changing intraoperative conditions over time. To overcome this limitation, we present an experimental end-to-end system capable of updating 3D preoperative images in the presence of brain shift and successive resections. The heart of our system is a nonrigid registration technique using a biomechanical model, driven by the deformations of key surf...

We consider a quasi-stationary Stokes interface problem with a reaction term proportional to τ = 1/∆t ≥ 0 as obtained by a time discretization of a time-dependent Stokes problem. The mesh used for space discretization is not aligned with the interface. We use the P1 extended finite element space for the pressure approximation and the standard conforming P2 finite element space for the velocity ...

A comparative study on finite elements for capturing strong discontinuities by means of elemental (E-FEM) or nodal enrichments (XFEM) is presented. Based on the same constitutive model (continuum damage) and linear elements (triangles and tetrahedra) optimized implementations of both types of enrichments in the same non-linear code are tested for a representative set of 2D and 3D crack propagat...

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