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Design & Analysis of ASME Boiler and Pressure Vessel Components in the Creep Range

Maan H. Jawad
Maan H. Jawad
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Robert I. Jetter
Robert I. Jetter
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ASME Press
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In this chapter, the American Society of Mechanical Engineers (ASME) criterion for designing pressure vessels under repetitive cyclic loading conditions in the creep range is discussed. Such cycles are generally encountered in power plants as well as petrochemical plants under normal operating conditions. The assumption of repetitive cycles enables us to focus first on explaining the ASME procedure for designing components under cyclic loading in the creep range without having to deal with the complex problem of variable cyclic conditions. Variable cyclic loading due to upset, regeneration, or other emergency conditions are discussed later in this chapter.

Cyclic analysis is...

6.1 Introduction
6.2 Creep-Fatigue Evaluation Using Elastic Analysis
6.3 Welded Components
6.4 Variable Cyclic Loads
6.5 ASME Code Procedures
6.6 Equivalent Stress Range Determination
6.6.1 Equivalent Strain Range Determination — Applicable to Rotating Principal Strains
6.6.2 Equivalent Strain Range Determination — Applicable When Principal Strains Do Not Rotate
6.6.3 Equivalent Strain Range Determination — Acceptable Alternate When Performing Elastic Analysis
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