A solution for the elastoplastic deflection of cantilever beams with linearly variable circular cross-section loaded by shear force at free end, which is suitable practical use, has not yet been developed. semi-analytical such a problem proposed in this paper. The involves made homogenous and isotropic materials bilinear strain hardening behavior. Bernoulli–Euler formula used determining elasti...

At a given pressure gradient, for all channels with given area, that which maximises the steady flow Qsteady has a circular cross-section. Consider flows starting from rest developing from a constant imposed pressure gradient: for all channels with given crosssectional area, that which has the slowest approach to the steady flow is the circular disk cross-section. This arXiv preprint will suppl...

A second-kind integral equation for the tractions on a rigid body moving in a Stokesian fluid is established using the Lorentz reciprocal theorem and an integral equation for a double-layer density. A second-order collocation method based on the trapezoidal rule is applied to the integral equation after appropriate singularity reduction. For translating prolate spheroids with various aspect rat...

In this paper a method is presented for torsional analysis of non-homogeneous tubes with arbitrarily shaped cross-sections. A previously presented method based on Bredt’s theory is extended to achieve formulas for torsional analysis. Shear modulus varies through the thickness according to a power law distribution. To validate the accuracy of the presented formulas for angle of twist and shear s...

composites materials are widely used because of their high specific stiffness and strength. although the methods and techniques of designing these materials are well developed, however, the research on the behavior of these materials under impact and dynamic loadings are still under progress. in this article the crushing and energy absorption of composite tubes under axial dynamic loadings are ...