Nonlinear mechanical behavior of graded porous material beam subjected to moisture-heat-mechanics loads
The nonlinear mechanical behavior of graded porous material beams under the uniform distributed follower load “ that the load direction was changed with the deformation of structure ” was studied. Considering two kinds of porosity models with symmetrical and asymmetric distribution in gradient porou...
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| Format: | Article |
| Language: | zho |
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Journal of Aeronautical Materials
2022-06-01
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| Series: | Journal of Aeronautical Materials |
| Subjects: | |
| Online Access: | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2021.000096 |
| _version_ | 1811236204692111360 |
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| author | LI Qinglu WANG Siyao ZHANG Jinghua |
| author_facet | LI Qinglu WANG Siyao ZHANG Jinghua |
| author_sort | LI Qinglu |
| collection | DOAJ |
| description | The nonlinear mechanical behavior of graded porous material beams under the uniform distributed follower load “ that the load direction was changed with the deformation of structure ” was studied. Considering two kinds of porosity models with symmetrical and asymmetric distribution in gradient porous material beams, it was assumed that the material properties change continuously in thickness, and the one-dimensional temperature field and humidity field only relate to the thickness direction and change linearly. First, the two-point boundary value problem consisting of the governing differential equation and the boundary condition was converted to the initial value problem. The non-linear mechanical behavior of a porous gradient material simply supported beam made of open metal foam material was analyzed by using the shooting method. The equilibrium path and the equilibrium configuration of the two kinds of porous material beams under random load were given under different heterogeneous heating and non-uniform humidity. The influences of porosity coefficient, temperature rise and humidity on the post buckling or bending behavior of beams were discussed. The results show that there are three equilibrium configurations of symmetric porous beams under the same follower load in hot and humid environment. When \begin{document}$ {e_0} > 0.48 $\end{document}, the bending configuration increases monotonically with the load. |
| first_indexed | 2024-04-12T12:04:47Z |
| format | Article |
| id | doaj.art-9df097d2301b4a7891328d3618de31f9 |
| institution | Directory Open Access Journal |
| issn | 1005-5053 |
| language | zho |
| last_indexed | 2024-04-12T12:04:47Z |
| publishDate | 2022-06-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj.art-9df097d2301b4a7891328d3618de31f92022-12-22T03:33:44ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50532022-06-01423384410.11868/j.issn.1005-5053.2021.0000962021-0096Nonlinear mechanical behavior of graded porous material beam subjected to moisture-heat-mechanics loadsLI Qinglu0WANG Siyao1ZHANG Jinghua2School of Sciences, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Sciences, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Sciences, Lanzhou University of Technology, Lanzhou 730050, ChinaThe nonlinear mechanical behavior of graded porous material beams under the uniform distributed follower load “ that the load direction was changed with the deformation of structure ” was studied. Considering two kinds of porosity models with symmetrical and asymmetric distribution in gradient porous material beams, it was assumed that the material properties change continuously in thickness, and the one-dimensional temperature field and humidity field only relate to the thickness direction and change linearly. First, the two-point boundary value problem consisting of the governing differential equation and the boundary condition was converted to the initial value problem. The non-linear mechanical behavior of a porous gradient material simply supported beam made of open metal foam material was analyzed by using the shooting method. The equilibrium path and the equilibrium configuration of the two kinds of porous material beams under random load were given under different heterogeneous heating and non-uniform humidity. The influences of porosity coefficient, temperature rise and humidity on the post buckling or bending behavior of beams were discussed. The results show that there are three equilibrium configurations of symmetric porous beams under the same follower load in hot and humid environment. When \begin{document}$ {e_0} > 0.48 $\end{document}, the bending configuration increases monotonically with the load.http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2021.000096gradient porous materialsimply supported beamwet thermal environmentfollower forcenumerical solution |
| spellingShingle | LI Qinglu WANG Siyao ZHANG Jinghua Nonlinear mechanical behavior of graded porous material beam subjected to moisture-heat-mechanics loads Journal of Aeronautical Materials gradient porous material simply supported beam wet thermal environment follower force numerical solution |
| title | Nonlinear mechanical behavior of graded porous material beam subjected to moisture-heat-mechanics loads |
| title_full | Nonlinear mechanical behavior of graded porous material beam subjected to moisture-heat-mechanics loads |
| title_fullStr | Nonlinear mechanical behavior of graded porous material beam subjected to moisture-heat-mechanics loads |
| title_full_unstemmed | Nonlinear mechanical behavior of graded porous material beam subjected to moisture-heat-mechanics loads |
| title_short | Nonlinear mechanical behavior of graded porous material beam subjected to moisture-heat-mechanics loads |
| title_sort | nonlinear mechanical behavior of graded porous material beam subjected to moisture heat mechanics loads |
| topic | gradient porous material simply supported beam wet thermal environment follower force numerical solution |
| url | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2021.000096 |
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