Porokhovskyy Y. Calculation and experimental determination of stresses and residual life prediction of shell engineering structures with welded joints

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0412U004156

Applicant for

Specialization

  • 05.02.02 - Машинознавство

23-05-2012

Specialized Academic Board

Д 35.052.06

Lviv Polytechnic National University

Essay

The thesis is devoted to the development of calculation-experimental method for measuring residual stresses in the areas of multi-ring joints for one-thickness, different-thickness and piecewise-homogeneous shell of engineering structures. In the theory of shells with finite sliding rigid mathematical model to determine the technological residual stresses obtained value for the treatment of residual stresses on fatigue fracture under cyclic loading and the influence of stress on the durability of the weld defects such as cracks in the weld zone during effect of operating loads.

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