Maximizing working pressure of autofrettaged three layer compound cylinders with considering Bauschinger effect and reverse yielding

Seifi, Rahman

doi:10.1007/s11012-018-0834-2

Cited by 4 publications

(1 citation statement)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An efficient method of improving the performance of autofrettaged tubes is to use two-and multi-layer tubes [17]. Several theoretical solutions for such tubes are available in the literature (for example, [18][19][20][21][22][23]). The methods of analysis employed are similar to those used for homogeneous tubes.…”

Section: Introductionmentioning

confidence: 99%

A Theory of Autofrettage for Open-Ended, Polar Orthotropic Cylinders

2019

View full text Add to dashboard Cite

Autofrettage is a widely used process to enhance the fatigue life of holes. In the theoretical investigation presented in this article, a semi-analytic solution is derived for a polar, orthotropic, open-ended cylinder subjected to internal pressure, followed by unloading. Numerical techniques are only necessary to solve a linear differential equation and evaluate ordinary integrals. The generalized Hooke’s law connects the elastic portion of strain and stress. The flow theory of plasticity is employed. Plastic yielding is controlled by the Tsai–Hill yield criterion and its associated flow rule. It is shown that using the strain rate compatibility equation facilitates the solution. The general solution takes into account that elastic and plastic properties can be anisotropic. An illustrative example demonstrates the effect of plastic anisotropy on the distribution of stresses and strains, including residual stresses and strain, for elastically isotropic materials.

show abstract