Experimental Analysis of Perimeter Shear Strength of Composite Sandwich Structures
The work concerns the experimental analysis of the process of destruction of sandwich structures as a result of circumferential shearing. The aim of the research was to determine the differences that occur in the destruction mechanism of such structures depending on the thickness and material of the...
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MDPI AG
2020-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/1/12 |
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| author | Łukasz Święch Radosław Kołodziejczyk Natalia Stącel |
| author_facet | Łukasz Święch Radosław Kołodziejczyk Natalia Stącel |
| author_sort | Łukasz Święch |
| collection | DOAJ |
| description | The work concerns the experimental analysis of the process of destruction of sandwich structures as a result of circumferential shearing. The aim of the research was to determine the differences that occur in the destruction mechanism of such structures depending on the thickness and material of the core used. Specimens with a Rohacell foam core and a honeycomb core were made for the purposes of the research. The specimen destruction process was carried out in a static loading test with the use of a system introducing circumferential shear stress. The analysis of the tests results was made based on the load-displacement curves, the maximum load, and the energy absorbed by individual specimens. The tests indicated significant differences in the destruction mechanism of specimens with varied core material. The specimen with the honeycomb core was characterized by greater stiffness, which caused the damage to occur locally in the area subjected to the pressure of the punch. In specimens with the foam core, due to the lower stiffness of that core, the skins of the structure were bent, which additionally transfers compressive and tensile loads. This led to a higher maximum force that the specimens obtained at the time of destruction and greater energy absorption. |
| first_indexed | 2024-03-10T13:51:28Z |
| format | Article |
| id | doaj.art-5351a4eaeff84a12954c53273f2295b2 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:51:28Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-5351a4eaeff84a12954c53273f2295b22023-11-21T02:06:30ZengMDPI AGMaterials1996-19442020-12-011411210.3390/ma14010012Experimental Analysis of Perimeter Shear Strength of Composite Sandwich StructuresŁukasz Święch0Radosław Kołodziejczyk1Natalia Stącel2Department of Aerospace Engineering, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, PolandDepartment of Aerospace Engineering, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, PolandDepartment of Aerospace Engineering, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, PolandThe work concerns the experimental analysis of the process of destruction of sandwich structures as a result of circumferential shearing. The aim of the research was to determine the differences that occur in the destruction mechanism of such structures depending on the thickness and material of the core used. Specimens with a Rohacell foam core and a honeycomb core were made for the purposes of the research. The specimen destruction process was carried out in a static loading test with the use of a system introducing circumferential shear stress. The analysis of the tests results was made based on the load-displacement curves, the maximum load, and the energy absorbed by individual specimens. The tests indicated significant differences in the destruction mechanism of specimens with varied core material. The specimen with the honeycomb core was characterized by greater stiffness, which caused the damage to occur locally in the area subjected to the pressure of the punch. In specimens with the foam core, due to the lower stiffness of that core, the skins of the structure were bent, which additionally transfers compressive and tensile loads. This led to a higher maximum force that the specimens obtained at the time of destruction and greater energy absorption.https://www.mdpi.com/1996-1944/14/1/12composite structuressandwich structuresstatic shear testconcentrated force on compositeexperimental analysishoneycomb |
| spellingShingle | Łukasz Święch Radosław Kołodziejczyk Natalia Stącel Experimental Analysis of Perimeter Shear Strength of Composite Sandwich Structures Materials composite structures sandwich structures static shear test concentrated force on composite experimental analysis honeycomb |
| title | Experimental Analysis of Perimeter Shear Strength of Composite Sandwich Structures |
| title_full | Experimental Analysis of Perimeter Shear Strength of Composite Sandwich Structures |
| title_fullStr | Experimental Analysis of Perimeter Shear Strength of Composite Sandwich Structures |
| title_full_unstemmed | Experimental Analysis of Perimeter Shear Strength of Composite Sandwich Structures |
| title_short | Experimental Analysis of Perimeter Shear Strength of Composite Sandwich Structures |
| title_sort | experimental analysis of perimeter shear strength of composite sandwich structures |
| topic | composite structures sandwich structures static shear test concentrated force on composite experimental analysis honeycomb |
| url | https://www.mdpi.com/1996-1944/14/1/12 |
| work_keys_str_mv | AT łukaszswiech experimentalanalysisofperimetershearstrengthofcompositesandwichstructures AT radosławkołodziejczyk experimentalanalysisofperimetershearstrengthofcompositesandwichstructures AT nataliastacel experimentalanalysisofperimetershearstrengthofcompositesandwichstructures |