NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODS
The work introduces a two-phase method for determination of axial loads in tie-rods. The method described here consists of an experimental activity and an automated numerical calculation. The influence of considering an elastic Winkler-type bed to model the tie-rod constraint inside the wall has bee...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2016-02-01
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| Series: | Acta Polytechnica CTU Proceedings |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/3071 |
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| _version_ | 1849697654135586816 |
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| author | Kseniia Riabova Luca Collini Rinaldo Garziera |
| author_facet | Kseniia Riabova Luca Collini Rinaldo Garziera |
| author_sort | Kseniia Riabova |
| collection | DOAJ |
| description | The work introduces a two-phase method for determination of axial loads in tie-rods. The method described here consists of an experimental activity and an automated numerical calculation. The influence of considering an elastic Winkler-type bed to model the tie-rod constraint inside the wall has been investigated. The algorithm used for calculation involves a solution of a functional minimization problem, where the tensile load and the stiffness of elastic foundation at the edges are used as optimization parameters and the error function, which describes the deviation between the frequencies measured and those calculated using finite element method, is minimized. Qualitative analysis of the results showed a significant reduction of the error compared to models with different boundary conditions. The method showed to be conservative for the strength evaluation of the rods, because the optimal values of tensile loads appeared to be higher than the load in perfect encastre conditions. |
| format | Article |
| id | doaj-art-e6749cc1cad146be94138ef93367bef7 |
| institution | DOAJ |
| issn | 2336-5382 |
| language | English |
| publishDate | 2016-02-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-e6749cc1cad146be94138ef93367bef72025-08-20T03:19:08ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822016-02-0130606410.14311/APP.2016.3.00602779NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODSKseniia Riabova0Luca Collini1Rinaldo Garziera2University of Parma, Parco Area delle Scienze, 181/A, Parma, ItalyUniversity of Parma, Parco Area delle Scienze, 181/A, Parma, ItalyUniversity of Parma, Parco Area delle Scienze, 181/A, Parma, ItalyThe work introduces a two-phase method for determination of axial loads in tie-rods. The method described here consists of an experimental activity and an automated numerical calculation. The influence of considering an elastic Winkler-type bed to model the tie-rod constraint inside the wall has been investigated. The algorithm used for calculation involves a solution of a functional minimization problem, where the tensile load and the stiffness of elastic foundation at the edges are used as optimization parameters and the error function, which describes the deviation between the frequencies measured and those calculated using finite element method, is minimized. Qualitative analysis of the results showed a significant reduction of the error compared to models with different boundary conditions. The method showed to be conservative for the strength evaluation of the rods, because the optimal values of tensile loads appeared to be higher than the load in perfect encastre conditions.https://ojs.cvut.cz/ojs/index.php/APP/article/view/3071 |
| spellingShingle | Kseniia Riabova Luca Collini Rinaldo Garziera NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODS Acta Polytechnica CTU Proceedings |
| title | NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODS |
| title_full | NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODS |
| title_fullStr | NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODS |
| title_full_unstemmed | NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODS |
| title_short | NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODS |
| title_sort | numerical method for estimation of tensile load in tie rods |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/3071 |
| work_keys_str_mv | AT kseniiariabova numericalmethodforestimationoftensileloadintierods AT lucacollini numericalmethodforestimationoftensileloadintierods AT rinaldogarziera numericalmethodforestimationoftensileloadintierods |