Critical easy-plane anisotropies where in-plane magnetic vortices in two-dimensional Heisenberg models are stabilized are determined precisely on square, hexagonal and triangular lattices, by finding the anisotropy that leads to a zero frequency mode.

In this work, the uniaxial and biaxial fatigue behaviour of maraging steel (18Ni300) obtained by additive manufacturing was studied. The material evaluated using several load paths different levels. predictive capacity life crack initiation angle critical plane methods Liu (I II), Chu, Conle, Bonnen (CCB) were evaluated. results showed that normal stresses had a strong effect on life. general, ...