No Cover Image

Journal article 674 views 135 downloads

Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods

M. Connolly, M. Whittaker, S. Williams, Mark Whittaker Orcid Logo

Materials Science and Technology, Volume: 30, Issue: 15, Pages: 1899 - 1904

Swansea University Author: Mark Whittaker Orcid Logo

DOI (Published version): 10.1179/1743284714Y.0000000539

Abstract

The creep behaviour of the nickel-superalloy RR1000 is studied through a number of constant-load creep tests. It is often assumed that creep data generated by constant-load testing are unsuitable for building a generalised creep model due to the non-constant stresses incurred. Analysis of existing m...

Full description

Published in: Materials Science and Technology
Published: 2014
URI: https://cronfa.swan.ac.uk/Record/cronfa26773
Tags: Add Tag
No Tags, Be the first to tag this record!
first_indexed 2016-03-18T01:59:36Z
last_indexed 2018-02-09T05:09:07Z
id cronfa26773
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2016-05-16T13:18:22.4988040</datestamp><bib-version>v2</bib-version><id>26773</id><entry>2016-03-17</entry><title>Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods</title><swanseaauthors><author><sid>a146c6d442cb2c466d096179f9ac97ca</sid><ORCID>0000-0002-5854-0726</ORCID><firstname>Mark</firstname><surname>Whittaker</surname><name>Mark Whittaker</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2016-03-17</date><deptcode>MTLS</deptcode><abstract>The creep behaviour of the nickel-superalloy RR1000 is studied through a number of constant-load creep tests. It is often assumed that creep data generated by constant-load testing are unsuitable for building a generalised creep model due to the non-constant stresses incurred. Analysis of existing models shows that significant errors may occur in many approaches, which attempt to recreate the strain evolution with time. A model is presented which is not reliant on time as a parameter and is therefore able to utilise constant-load creep data without enforcing the assumption of a constant stress. This model is demonstrated through numerical analyses to replicate the creep behaviour across a large range of stresses accurately. The proposed model is then adapted as an Abaqus&#x2122; user-subroutine to demonstrate capability within finite element analysis.</abstract><type>Journal Article</type><journal>Materials Science and Technology</journal><volume>30</volume><journalNumber>15</journalNumber><paginationStart>1899</paginationStart><paginationEnd>1904</paginationEnd><publisher/><isbnPrint/><isbnElectronic/><issnPrint/><keywords/><publishedDay>31</publishedDay><publishedMonth>7</publishedMonth><publishedYear>2014</publishedYear><publishedDate>2014-07-31</publishedDate><doi>10.1179/1743284714Y.0000000539</doi><url/><notes/><college>COLLEGE NANME</college><department>Materials Science and Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>MTLS</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2016-05-16T13:18:22.4988040</lastEdited><Created>2016-03-17T13:11:12.0367123</Created><path><level id="1">College of Engineering</level><level id="2">Engineering</level></path><authors><author><firstname>M.</firstname><surname>Connolly</surname><order>1</order></author><author><firstname>M.</firstname><surname>Whittaker</surname><order>2</order></author><author><firstname>S.</firstname><surname>Williams</surname><order>3</order></author><author><firstname>Mark</firstname><surname>Whittaker</surname><orcid>0000-0002-5854-0726</orcid><order>4</order></author></authors><documents><document><filename>0026773-17032016131209.pdf</filename><originalFilename>Cronfav4.pdf</originalFilename><uploaded>2016-03-17T13:12:09.8370000</uploaded><type>Output</type><contentLength>1130720</contentLength><contentType>application/pdf</contentType><version>Accepted Manuscript</version><cronfaStatus>true</cronfaStatus><embargoDate>2016-03-17T00:00:00.0000000</embargoDate><copyrightCorrect>true</copyrightCorrect></document></documents><OutputDurs/></rfc1807>
spelling 2016-05-16T13:18:22.4988040 v2 26773 2016-03-17 Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods a146c6d442cb2c466d096179f9ac97ca 0000-0002-5854-0726 Mark Whittaker Mark Whittaker true false 2016-03-17 MTLS The creep behaviour of the nickel-superalloy RR1000 is studied through a number of constant-load creep tests. It is often assumed that creep data generated by constant-load testing are unsuitable for building a generalised creep model due to the non-constant stresses incurred. Analysis of existing models shows that significant errors may occur in many approaches, which attempt to recreate the strain evolution with time. A model is presented which is not reliant on time as a parameter and is therefore able to utilise constant-load creep data without enforcing the assumption of a constant stress. This model is demonstrated through numerical analyses to replicate the creep behaviour across a large range of stresses accurately. The proposed model is then adapted as an Abaqus™ user-subroutine to demonstrate capability within finite element analysis. Journal Article Materials Science and Technology 30 15 1899 1904 31 7 2014 2014-07-31 10.1179/1743284714Y.0000000539 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2016-05-16T13:18:22.4988040 2016-03-17T13:11:12.0367123 College of Engineering Engineering M. Connolly 1 M. Whittaker 2 S. Williams 3 Mark Whittaker 0000-0002-5854-0726 4 0026773-17032016131209.pdf Cronfav4.pdf 2016-03-17T13:12:09.8370000 Output 1130720 application/pdf Accepted Manuscript true 2016-03-17T00:00:00.0000000 true
title Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods
spellingShingle Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods
Mark, Whittaker
title_short Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods
title_full Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods
title_fullStr Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods
title_full_unstemmed Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods
title_sort Development of true-stress creep model through analysis of constant-load creep data with application to finite element methods
author_id_str_mv a146c6d442cb2c466d096179f9ac97ca
author_id_fullname_str_mv a146c6d442cb2c466d096179f9ac97ca_***_Mark, Whittaker_***_0000-0002-5854-0726
author Mark, Whittaker
author2 M. Connolly
M. Whittaker
S. Williams
Mark Whittaker
format Journal article
container_title Materials Science and Technology
container_volume 30
container_issue 15
container_start_page 1899
publishDate 2014
institution Swansea University
doi_str_mv 10.1179/1743284714Y.0000000539
college_str College of Engineering
hierarchytype
hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description The creep behaviour of the nickel-superalloy RR1000 is studied through a number of constant-load creep tests. It is often assumed that creep data generated by constant-load testing are unsuitable for building a generalised creep model due to the non-constant stresses incurred. Analysis of existing models shows that significant errors may occur in many approaches, which attempt to recreate the strain evolution with time. A model is presented which is not reliant on time as a parameter and is therefore able to utilise constant-load creep data without enforcing the assumption of a constant stress. This model is demonstrated through numerical analyses to replicate the creep behaviour across a large range of stresses accurately. The proposed model is then adapted as an Abaqus™ user-subroutine to demonstrate capability within finite element analysis.
published_date 2014-07-31T03:45:42Z
_version_ 1722987307141693440
score 10.852904