Residual Stress Fields due to Varying Tack Welds Orientation in Circumferentially Welded Thin-Walled Cylinders

Determination and Evaluation of Residual Stresses in Thick- Walled Cylinders Due to Autofrettage

Autofrettage is a treatment to introduce beneficial residual stresses into thick-walled cylinders to improve their performance under repeated loading by internal pressure. In the present investigation the residual stresses are measured and their effect was analysed and discussed. The experimental determination of the residual stress distribution was performed by the crack-compliance-method. The...

Determination of Residual Stress for Single and Double Autofrettage of Thick-walled FG Cylinders Subjected to Dynamic Loading

In the present article a numerical procedure is developed for dynamic analysis of single and double autofrettage of thick–walled FG cylinders under transient loading. The governing differential equations are discretized and presented in explicit Lagrangian formalism. The explicit transient solution of discrete equations are obtained on the meshed region and results for stress and strain distrib...

Residual Stress Fields due to Static and Dynamic Indentation

Many problems in material mechanics have eluded full understanding due to an inability to characterize local strain fields with sufficient resolution. For crystalline materials, very highresolution x-ray diffraction possible in a parallel beam geometry at a synchrotron source offers a solution as demonstrated by our preliminary work on beamline 2-1 as well as the work of others (see, for exampl...

Inhomogeneous superconducting States of mesoscopic thin-walled cylinders in external magnetic fields.

We theoretically investigate the appearance of spatially modulated superconducting states in mesoscopic superconducting thin-wall cylinders in a magnetic field at low temperatures. Quantization of the electron motion around the circumference of the cylinder leads to a discontinuous evolution of the spatial modulation of the superconducting order parameter along the transition line T(c)(H). We s...

Stress Fields and Electric Potential in Piezoelectric Cylinders