Science Arts & Métiers (SAM)

The significant increase of the compressive stress and the changes in the mechanical properties hardness and elastic modulus observed at 50% nitrogen concentration in the plasma may be

Figure 12 shows the evolution of the residual stresses versus the depth be- low the machined and combined machined/treated surfaces obtained using the combined tool for a normalised

The tests have shown a reduction in the cutting force, and have highlighted the impact of laser assistance on the integrity surface roughness, appearance, residual stress and the tool

Therefore, comparisons of predicted and experimental flow patterns reveal that a better match is obtained for the high friction coefficients in the case of 0.25 m s−1ram speed and for the

Since one problem of practical importance is to determine the extreme roughness amplitude that will be found in a large scale sam- ple by using a small evaluation length, the procedure

3, a material model to predict theflow behaviour of the Inconel 718 should consider strain hardening up to a strain level of ~ 0.26 followed by a strain softening range where stress

Figure 5 shows an example of instantaneous velocity field where the flow separates at the leading edge, reattaches further downstream and separates again near the trailing edge.. Figure

At thislevelthe VAT omposite plate is modelled as an equivalent homogeneous anisotropi ontinuum whose behaviour is desribed in terms of laminate polar parameters, whih vary