Application of smoothing methods for estimation of service life for polymers from tensile testing
We propose a procedure for extracting reliable information regarding service life of a polymer product from an experimental scatter plot obtained by mechanical tests. Consideration was given to the change in elongation at break as a result of natural weathering for stabilized polymers. We suggest us...
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| Veröffentlicht in: | Polymer testing 2005-09, Vol.24 (6), p.718-727 |
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| container_title | Polymer testing |
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| creator | Guseva, Olga Lichtblau, Alexander |
| description | We propose a procedure for extracting reliable information regarding service life of a polymer product from an experimental scatter plot obtained by mechanical tests. Consideration was given to the change in elongation at break as a result of natural weathering for stabilized polymers. We suggest using locally weighted regression scatter plot smoothing to estimate the service life (threshold time)—weathering time at which the elongation at break of a polymer reduces by half. For the first time the construction of realistic confidence intervals (accuracy of the estimations) for the service life obtained from tensile testing of aged polymers is discussed. The proposed approach is general and applicable to other degradation processes. |
| doi_str_mv | 10.1016/j.polymertesting.2005.04.009 |
| format | Article |
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| ispartof | Polymer testing, 2005-09, Vol.24 (6), p.718-727 |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier); EZB-FREE-00999 freely available EZB journals |
| subjects | Ageing Applied sciences Coatings Confidence intervals Elongation at break Exact sciences and technology Loess (lowess) Physical properties Polymer industry, paints, wood Properties and testing Scatter plot smoothing Service life Technology of polymers Tensile testing Weathering |
| title | Application of smoothing methods for estimation of service life for polymers from tensile testing |
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