One of the challenges encountered in industrialization new single-crystal superalloys parts (like high-pressure turbine blades and vanes for aircraft engines) is to limit mechanical stresses during solidification cooling metal. In order accurately predict viscoplastic flow as well thermo-mechanical behaviour Ni-based superalloy its cooling, this study a thermodynamically-consistent thermo-elast...

Starting from the exact solution of heterogeneous linear viscoelastic Eshelby ellipsoidal inclusion problem obtained in time domain for an embedded isotropic matrix (Berbenni et al., 2015), a direct time-incremental homogenization Mori–Tanaka scheme two-phase non elasto-viscoplastic materials is proposed. The extension to non-linear behavior based on “modified secant” formulation obtain compari...

In order to better understand the strengthening mechanism observed in nacre, we have developed an interface computational model to simulate the behavior of the organic present at the interface between aragonite tablets. In the model, the single polymer-chain behavior is characterized by the worm-like-chain (WLC) model, which is in turn incorporated into the eight-chain cell model developed by A...

Printed board assemblies, i.e. components soldered on printed circuit boards (PCBs), are exposed to thermal cycles responsible for fatigue cracking of solder joints as a result expansion mismatch between the constituting elements. Advanced finite element simulations performed using traction–separation law represent process and temperature-dependent elasto-viscoplastic model joint response. Pred...

Validating micromechanical models under different loadings is challenging due to limited availability of experimental setups that can probe complex stress states. In this work, we perform in situ neutron diffraction experiments during shear loading study the evolution crystallographic texture and lattice strains develop grain families. The are conducted on 316 stainless steel samples, having a ...