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Title: Report on FY17 testing in support of integrated EPP-SMT design methods development

Abstract

The goal of the proposed integrated Elastic Perfectly-Plastic (EPP) and Simplified Model Test (SMT) methodology is to incorporate a SMT data-based approach for creep-fatigue damage evaluation into the EPP methodology to avoid the separate evaluation of creep and fatigue damage and eliminate the requirement for stress classification in current methods; thus greatly simplifying evaluation of elevated temperature cyclic service. The purpose of this methodology is to minimize over-conservatism while properly accounting for localized defects and stress risers. To support the implementation of the proposed methodology and to verify the applicability of the code rules, thermomechanical tests continued in FY17. This report presents the recent test results for Type 1 SMT specimens on Alloy 617 with long hold times, pressurization SMT on Alloy 617, and two-bar thermal ratcheting test results on SS316H at the temperature range of 405 °C to 705 °C. Preliminary EPP strain range analysis on the two-bar tests are critically evaluated and compared with the experimental results.

Authors:
ORCiD logo [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1376507
Report Number(s):
ORNL/TM-2017/351
75816
DOE Contract Number:
AC05-00OR22725
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Wang, Yanli ., Jetter, Robert I., and Sham, T. -L. Report on FY17 testing in support of integrated EPP-SMT design methods development. United States: N. p., 2017. Web. doi:10.2172/1376507.
Wang, Yanli ., Jetter, Robert I., & Sham, T. -L. Report on FY17 testing in support of integrated EPP-SMT design methods development. United States. doi:10.2172/1376507.
Wang, Yanli ., Jetter, Robert I., and Sham, T. -L. Tue . "Report on FY17 testing in support of integrated EPP-SMT design methods development". United States. doi:10.2172/1376507. https://www.osti.gov/servlets/purl/1376507.
@article{osti_1376507,
title = {Report on FY17 testing in support of integrated EPP-SMT design methods development},
author = {Wang, Yanli . and Jetter, Robert I. and Sham, T. -L.},
abstractNote = {The goal of the proposed integrated Elastic Perfectly-Plastic (EPP) and Simplified Model Test (SMT) methodology is to incorporate a SMT data-based approach for creep-fatigue damage evaluation into the EPP methodology to avoid the separate evaluation of creep and fatigue damage and eliminate the requirement for stress classification in current methods; thus greatly simplifying evaluation of elevated temperature cyclic service. The purpose of this methodology is to minimize over-conservatism while properly accounting for localized defects and stress risers. To support the implementation of the proposed methodology and to verify the applicability of the code rules, thermomechanical tests continued in FY17. This report presents the recent test results for Type 1 SMT specimens on Alloy 617 with long hold times, pressurization SMT on Alloy 617, and two-bar thermal ratcheting test results on SS316H at the temperature range of 405 °C to 705 °C. Preliminary EPP strain range analysis on the two-bar tests are critically evaluated and compared with the experimental results.},
doi = {10.2172/1376507},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 2017},
month = {Tue Aug 01 00:00:00 EDT 2017}
}

Technical Report:

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