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Details van artikel 107 van 151 gevonden artikelen
| Titel: |
Logical analysis of assumptions in fatigue design |
| Auteur: |
Henderson, J. R. Blockley, D. I. |
| Verschenen in: |
Civil engineering & environmental systems |
| Paginering: | Jaargang 1 (1983) nr. 2 pagina's 88-94 |
| Jaar: |
1983-12-01 |
| Inhoud: |
Whatever method is used to estimate the safety of a structure under fatigue loading, there is inevitably a mismatch between the predictions of the theoretical model used and the performance of the actual structure when built. It is the purpose of this paper to present an analysis of this mismatch and to suggest a method of fuzzy logical analysis which may be used to assess it. Three types of parameters are identified. The first group are those which can be precisely defined, measured and controlled in a laboratory experiment; the second are those which are difficult to define and measure even in the laboratory and the third are those unknown parameters which account for the scatter in laboratory fatigue tests. A fuzzy logic model of the mismatch between the behaviour of the completed structure and the laboratory models and between the service loading and those loadings used in the laboratory is presented. The probability of a particular class of weld detail in a bridge structure is calculated using a probabilistic measure on a fuzzy relation. This probability is then modified by the results obtained from subjective estimates input to the fuzzy logic model to obtain a fuzzy probabilistic measure of the safety of the detail. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 107 van 151 gevonden artikelen
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