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ASME STP-PT-022

$24.98

Comparison and Validation of Creep-Buckling Analysis Methods
standard by ASME International, 09/03/2008

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This report provides comparisons of creep-buckling calculations and provides guidance onapproximate methods which are feasible for design. This report includes a discussion of the variouscreep models, presents creep buckling analysis techniques, and provides several comparative examplecalculations.

The techniques discussed in this report include:
1. Baseline analysis. Finite element creep analysis with different creep models and full non-linearstrain-displacement (geometrical) analysis.
2. Critical strain technique. Elastic buckling strain defines the creep buckling strain.
3. Tangent/secant modulus approaches. Combinations of tangent and secant moduli of theisochronous stress-strain curve are used in calculations that reduce to elastic buckling calculationsin the elastic case.
4. Use of an isochronous stress-strain curve in a limit/instability analysis of the imperfect structure.An instability (buckling) analysis would be in principle the same as Technique 3, and shouldgenerate the same answer. Adding plastic collapse as a failure mode ensures that the yieldstrength of the structure is not exceeded. This analysis therefore reflects the failure modes whichare covered by the baseline technique.

Product Details

Published:
09/03/2008
ISBN(s):
9780791831748
Number of Pages:
31
File Size:
1 file , 1000 KB
Category:

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