Innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testing

Innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testing

Lifetime prediction using three-point bending (TPB) can at times be prohibitively time consuming and costly, whereas vibration testing at higher frequency may potentially save time and revenue. A vibration technique that obtains lifetimes that reasonably match those determined under flexural TPB fat...

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Bibliographic Details
Main Authors: Peralta Alexander, Just-Agosto Frederick, Shafiq Basir, Serrano David
Format: Article
Language:English
Published: De Gruyter 2012-12-01
Series:Journal of the Mechanical Behavior of Materials
Subjects:
fatigue
polyurethane foam
three-point bending
vibration
Online Access:https://doi.org/10.1515/jmbm-2011-0013
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spelling doaj-814cd94260234c03ace2cd5c548113822021-10-02T17:53:17ZengDe GruyterJournal of the Mechanical Behavior of Materials0334-89382191-02432012-12-01213-4616810.1515/jmbm-2011-0013Innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testingPeralta Alexander0Just-Agosto Frederick1Shafiq Basir2Serrano David3Department of Mechanical Engineering, University of Puerto Rico, Mayaguez, Puerto Rico 0068Department of Mechanical Engineering, University of Puerto Rico, Mayaguez, Puerto Rico 0068Department of General Engineering, University of Puerto Rico, Mayaguez, Puerto Rico 00681Department of Mechanical Engineering, University of Puerto Rico, Mayaguez, Puerto Rico 0068Lifetime prediction using three-point bending (TPB) can at times be prohibitively time consuming and costly, whereas vibration testing at higher frequency may potentially save time and revenue. A vibration technique that obtains lifetimes that reasonably match those determined under flexural TPB fatigue is developed. The technique designs the specimen with a procedure based on shape optimization and finite element analysis. When the specimen is vibrated in resonance, a stress pattern that mimics the stress pattern observed under conventional TPB fatigue testing is obtained. The proposed approach was verified with polyurethane foam specimens, resulting in an average error of 4.5% when compared with TPB.https://doi.org/10.1515/jmbm-2011-0013fatiguepolyurethane foamthree-point bendingvibration
collection DOAJ
language English
format Article
sources DOAJ
author Peralta Alexander
Just-Agosto Frederick
Shafiq Basir
Serrano David
spellingShingle Peralta Alexander
Just-Agosto Frederick
Shafiq Basir
Serrano David
Innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testing
Journal of the Mechanical Behavior of Materials
fatigue
polyurethane foam
three-point bending
vibration
author_facet Peralta Alexander
Just-Agosto Frederick
Shafiq Basir
Serrano David
author_sort Peralta Alexander
title Innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testing
title_short Innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testing
title_full Innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testing
title_fullStr Innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testing
title_full_unstemmed Innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testing
title_sort innovative vibration technique applied to polyurethane foam as a viable substitute for conventional fatigue testing
publisher De Gruyter
series Journal of the Mechanical Behavior of Materials
issn 0334-8938
2191-0243
publishDate 2012-12-01
description Lifetime prediction using three-point bending (TPB) can at times be prohibitively time consuming and costly, whereas vibration testing at higher frequency may potentially save time and revenue. A vibration technique that obtains lifetimes that reasonably match those determined under flexural TPB fatigue is developed. The technique designs the specimen with a procedure based on shape optimization and finite element analysis. When the specimen is vibrated in resonance, a stress pattern that mimics the stress pattern observed under conventional TPB fatigue testing is obtained. The proposed approach was verified with polyurethane foam specimens, resulting in an average error of 4.5% when compared with TPB.
topic fatigue
polyurethane foam
three-point bending
vibration
url https://doi.org/10.1515/jmbm-2011-0013
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AT serranodavid innovativevibrationtechniqueappliedtopolyurethanefoamasaviablesubstituteforconventionalfatiguetesting
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