Valeriu V. Jinescu

TL;DR: In this paper, a new method and new relationships for fatigue life calculation is proposed taking into account the superposition of fatigue loadings, considering the dependence of critical stress value on the number of loading cycles, as well as the nonlinear behaviour of the material along with the influence of the mean stress, cyclic loads rate and deteriorations.

TL;DR: In this article, the authors introduced and analyzed on literature-based relations that calculating the deterioration produced by cyclic loading with normal stresses can be actually calculated, based on the principle of critical energy, deterioration has been expressed as a power function.

TL;DR: In this article, the authors determined the load groups whose joint action might cause buckling or stability loss in any structure (such as bars, plates or shells), and the relationships obtained for the critical load groupings depend on the behaviour of the structure material (linear-elastic, nonlinear-linear, or rigid body), as well as on how the load is applied (slowly or suddenly).

TL;DR: In this article, a relationship for the critical energy principle of nonlinear power law behavior of the structure material, taking into account the deterioration due to crack, has been established in the case of monotonic loading and cyclic loading.

TL;DR: In this paper, a network procedure based on the network procedure was used to calculate a usual mixing zone for a 63.5 mm extruder-screw, which is useful when we are interested in the optimum design of such mixing zones.