In this paper, a kinematic approach and an iterative procedure, earlier proposed for limit analysis, are adopted for shakedown analysis under variable repeated loading. Reference is made to three-dimensional structures of engineering relevance, such as pressurized pipelines and vessels with ¯uctuating pressure and with slot damages due, e.g. to pitting corrosion. The numerical performance of the solution algorithm is investigated, and the cost-effectiveness of the proposed direct shakedown analysis method is assessed and compared to that of timemarching solutions by up-to-date codes.

Shakedown analysis of defective pressure vessels by a kinematic approach

CARVELLI, VALTER;MAIER, GIULIO
1999

Abstract

In this paper, a kinematic approach and an iterative procedure, earlier proposed for limit analysis, are adopted for shakedown analysis under variable repeated loading. Reference is made to three-dimensional structures of engineering relevance, such as pressurized pipelines and vessels with ¯uctuating pressure and with slot damages due, e.g. to pitting corrosion. The numerical performance of the solution algorithm is investigated, and the cost-effectiveness of the proposed direct shakedown analysis method is assessed and compared to that of timemarching solutions by up-to-date codes.
plasticity; shakedown; kinematic approach; pressure vessels; initial defect
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/670755
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