Numerical Prediction of Local Instability in Double Corrugated Profiles
The technological process of forming the double-corrugated structures of the K-span system causes deep transverse embossing on the surface of the profiles. Such profile geometry makes it difficult to apply classical theories related to plastic failure mechanisms to identify the formation of local in...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/20/6002 |
| _version_ | 1797514031579267072 |
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| author | Artur Piekarczuk Przemysław Więch |
| author_facet | Artur Piekarczuk Przemysław Więch |
| author_sort | Artur Piekarczuk |
| collection | DOAJ |
| description | The technological process of forming the double-corrugated structures of the K-span system causes deep transverse embossing on the surface of the profiles. Such profile geometry makes it difficult to apply classical theories related to plastic failure mechanisms to identify the formation of local instabilities. This article presents an original method for the prediction of local instabilities of double-corrugated structures. The method was developed on the basis of a hierarchical validated FEM model. The geometrically and materially nonlinear analysis method was adopted to perform numerical calculations. The results of calculations enabled the determination of reference equilibrium paths for the eccentrically compressed shell element. Based on the analysis of nonlinear equilibrium paths, a method for predicting the beginning and the end of the appearance of local instabilities in the elastoplastic pre-buckling range was developed. |
| first_indexed | 2024-03-10T06:25:52Z |
| format | Article |
| id | doaj.art-553add3eba3b4bd1aaafc184b6d3f039 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:25:52Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-553add3eba3b4bd1aaafc184b6d3f0392023-11-22T18:57:27ZengMDPI AGMaterials1996-19442021-10-011420600210.3390/ma14206002Numerical Prediction of Local Instability in Double Corrugated ProfilesArtur Piekarczuk0Przemysław Więch1Instytut Techniki Budowlanej Filtrowa 1, 00-611 Warsaw, PolandInstytut Techniki Budowlanej Filtrowa 1, 00-611 Warsaw, PolandThe technological process of forming the double-corrugated structures of the K-span system causes deep transverse embossing on the surface of the profiles. Such profile geometry makes it difficult to apply classical theories related to plastic failure mechanisms to identify the formation of local instabilities. This article presents an original method for the prediction of local instabilities of double-corrugated structures. The method was developed on the basis of a hierarchical validated FEM model. The geometrically and materially nonlinear analysis method was adopted to perform numerical calculations. The results of calculations enabled the determination of reference equilibrium paths for the eccentrically compressed shell element. Based on the analysis of nonlinear equilibrium paths, a method for predicting the beginning and the end of the appearance of local instabilities in the elastoplastic pre-buckling range was developed.https://www.mdpi.com/1996-1944/14/20/6002double-corrugated profilebucklingvalidationFEM |
| spellingShingle | Artur Piekarczuk Przemysław Więch Numerical Prediction of Local Instability in Double Corrugated Profiles Materials double-corrugated profile buckling validation FEM |
| title | Numerical Prediction of Local Instability in Double Corrugated Profiles |
| title_full | Numerical Prediction of Local Instability in Double Corrugated Profiles |
| title_fullStr | Numerical Prediction of Local Instability in Double Corrugated Profiles |
| title_full_unstemmed | Numerical Prediction of Local Instability in Double Corrugated Profiles |
| title_short | Numerical Prediction of Local Instability in Double Corrugated Profiles |
| title_sort | numerical prediction of local instability in double corrugated profiles |
| topic | double-corrugated profile buckling validation FEM |
| url | https://www.mdpi.com/1996-1944/14/20/6002 |
| work_keys_str_mv | AT arturpiekarczuk numericalpredictionoflocalinstabilityindoublecorrugatedprofiles AT przemysławwiech numericalpredictionoflocalinstabilityindoublecorrugatedprofiles |