Analysis of Stress Relaxation and Creep Curves for a Log‐Normal Distribution of Relaxation Times
A procedure to determine the characteristic parameters of a log‐normal distribution of relaxation times, both for stress relaxation and creep tests, is presented. The method is based on the use of either the normalized stress relaxation or creep functions and their first derivatives. Furthermore, th...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03701972_v151_n1_p71_Povolo |
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todo:paper_03701972_v151_n1_p71_Povolo2023-10-03T15:28:31Z Analysis of Stress Relaxation and Creep Curves for a Log‐Normal Distribution of Relaxation Times Povolo, F. Hermida, E.B. A procedure to determine the characteristic parameters of a log‐normal distribution of relaxation times, both for stress relaxation and creep tests, is presented. The method is based on the use of either the normalized stress relaxation or creep functions and their first derivatives. Furthermore, the limiting stress or strain can be obtained directly from the experimental data. Finally, the procedure developed is applied to actual stress relaxation curves reported for aluminum and polysulphide rubber and the results are compared with those obtained by approximate methods, based on the use of the error function. Copyright © 1989 WILEY‐VCH Verlag GmbH & Co. KGaA Fil:Povolo, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hermida, E.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03701972_v151_n1_p71_Povolo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
A procedure to determine the characteristic parameters of a log‐normal distribution of relaxation times, both for stress relaxation and creep tests, is presented. The method is based on the use of either the normalized stress relaxation or creep functions and their first derivatives. Furthermore, the limiting stress or strain can be obtained directly from the experimental data. Finally, the procedure developed is applied to actual stress relaxation curves reported for aluminum and polysulphide rubber and the results are compared with those obtained by approximate methods, based on the use of the error function. Copyright © 1989 WILEY‐VCH Verlag GmbH & Co. KGaA |
| format |
JOUR |
| author |
Povolo, F. Hermida, E.B. |
| spellingShingle |
Povolo, F. Hermida, E.B. Analysis of Stress Relaxation and Creep Curves for a Log‐Normal Distribution of Relaxation Times |
| author_facet |
Povolo, F. Hermida, E.B. |
| author_sort |
Povolo, F. |
| title |
Analysis of Stress Relaxation and Creep Curves for a Log‐Normal Distribution of Relaxation Times |
| title_short |
Analysis of Stress Relaxation and Creep Curves for a Log‐Normal Distribution of Relaxation Times |
| title_full |
Analysis of Stress Relaxation and Creep Curves for a Log‐Normal Distribution of Relaxation Times |
| title_fullStr |
Analysis of Stress Relaxation and Creep Curves for a Log‐Normal Distribution of Relaxation Times |
| title_full_unstemmed |
Analysis of Stress Relaxation and Creep Curves for a Log‐Normal Distribution of Relaxation Times |
| title_sort |
analysis of stress relaxation and creep curves for a log‐normal distribution of relaxation times |
| url |
http://hdl.handle.net/20.500.12110/paper_03701972_v151_n1_p71_Povolo |
| work_keys_str_mv |
AT povolof analysisofstressrelaxationandcreepcurvesforalognormaldistributionofrelaxationtimes AT hermidaeb analysisofstressrelaxationandcreepcurvesforalognormaldistributionofrelaxationtimes |
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1807315661078134784 |