FAILURE MODES OF CYLINDRICAL CORRUGATED CORE SANDWICH UNDER QUASI-STATIC AXIAL COMPRESSIVE AND INTERNAL PRESSURE LOADINGS
A cylindrical sandwich structure with a corrugated core has advantages over sandwich structures with other types of cores, especially in the form of the most efficient weight in various loading cases. In addition, the sandwich cylindrical structure with a corrugated core is also easy to manufacture...
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id-itb.:668762022-07-25T14:46:31ZFAILURE MODES OF CYLINDRICAL CORRUGATED CORE SANDWICH UNDER QUASI-STATIC AXIAL COMPRESSIVE AND INTERNAL PRESSURE LOADINGS Sultan Bakhtari, Jorghy Indonesia Theses axial compression, corrugated core, cylindrical sandwich, internal pressure, quasi-static INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/66876 A cylindrical sandwich structure with a corrugated core has advantages over sandwich structures with other types of cores, especially in the form of the most efficient weight in various loading cases. In addition, the sandwich cylindrical structure with a corrugated core is also easy to manufacture by the stamping method. Numerical analysis was carried out on the cylindrical structure of a corrugated core sandwich with quasi-static compression axial, internal pressure, and combination of the two loadings. This was done to observe the damage mode and behavior of the corrugated core sandwich cylinder structure against the three given loads. In addition, the strength of the corrugated core sandwich cylindrical structure was also compared with that of the monolithic sandwich cylindrical structure in the three specified loading cases. The validation of the quasi-static condition was successfully fulfilled at the given loading conditions. In addition, the validation of the numerical simulation results was also carried out, and the results of the proposed model were valid. The failure mode of the corrugated core cylindrical structure is in the form of local buckling for the case of quasi-static compression axial and combined loading. The application of internal stress loads in the selected range in the combined loading cases does not have a significant effect on the mode of structural damage. The corrugated core sandwich cylindrical structure has significant advantages over the monolithic sandwich cylindrical structure in all three given loads. The main factor that plays a role in energy absorption capacity is the coupling effect between the core and the inner and outer shell. A coupling effect is observed in the corrugated core sandwich cylindrical and monolithic sandwich cylindrical structures, but the number of core units in the corrugated core sandwich cylindrical structure is greater than the monolithic sandwich cylindrical structure. Therefore, the coupling effect in the corrugated core sandwich cylindrical structure provides a greater energy absorption capacity. text |
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A cylindrical sandwich structure with a corrugated core has advantages over sandwich structures with other types of cores, especially in the form of the most efficient weight in various loading cases. In addition, the sandwich cylindrical structure with a corrugated core is also easy to manufacture by the stamping method.
Numerical analysis was carried out on the cylindrical structure of a corrugated core sandwich with quasi-static compression axial, internal pressure, and combination of the two loadings. This was done to observe the damage mode and behavior of the corrugated core sandwich cylinder structure against the three given loads. In addition, the strength of the corrugated core sandwich cylindrical structure was also compared with that of the monolithic sandwich cylindrical structure in the three specified loading cases.
The validation of the quasi-static condition was successfully fulfilled at the given loading conditions. In addition, the validation of the numerical simulation results was also carried out, and the results of the proposed model were valid. The failure mode of the corrugated core cylindrical structure is in the form of local buckling for the case of quasi-static compression axial and combined loading. The application of internal stress loads in the selected range in the combined loading cases does not have a significant effect on the mode of structural damage. The corrugated core sandwich cylindrical structure has significant advantages over the monolithic sandwich cylindrical structure in all three given loads. The main factor that plays a role in energy absorption capacity is the coupling effect between the core and the inner and outer shell. A coupling effect is observed in the corrugated core sandwich cylindrical and monolithic sandwich cylindrical structures, but the number of core units in the corrugated core sandwich cylindrical structure is greater than the monolithic sandwich cylindrical structure. Therefore, the coupling effect in the corrugated core sandwich cylindrical structure provides a greater energy absorption capacity.
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Theses |
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Sultan Bakhtari, Jorghy |
spellingShingle |
Sultan Bakhtari, Jorghy FAILURE MODES OF CYLINDRICAL CORRUGATED CORE SANDWICH UNDER QUASI-STATIC AXIAL COMPRESSIVE AND INTERNAL PRESSURE LOADINGS |
author_facet |
Sultan Bakhtari, Jorghy |
author_sort |
Sultan Bakhtari, Jorghy |
title |
FAILURE MODES OF CYLINDRICAL CORRUGATED CORE SANDWICH UNDER QUASI-STATIC AXIAL COMPRESSIVE AND INTERNAL PRESSURE LOADINGS |
title_short |
FAILURE MODES OF CYLINDRICAL CORRUGATED CORE SANDWICH UNDER QUASI-STATIC AXIAL COMPRESSIVE AND INTERNAL PRESSURE LOADINGS |
title_full |
FAILURE MODES OF CYLINDRICAL CORRUGATED CORE SANDWICH UNDER QUASI-STATIC AXIAL COMPRESSIVE AND INTERNAL PRESSURE LOADINGS |
title_fullStr |
FAILURE MODES OF CYLINDRICAL CORRUGATED CORE SANDWICH UNDER QUASI-STATIC AXIAL COMPRESSIVE AND INTERNAL PRESSURE LOADINGS |
title_full_unstemmed |
FAILURE MODES OF CYLINDRICAL CORRUGATED CORE SANDWICH UNDER QUASI-STATIC AXIAL COMPRESSIVE AND INTERNAL PRESSURE LOADINGS |
title_sort |
failure modes of cylindrical corrugated core sandwich under quasi-static axial compressive and internal pressure loadings |
url |
https://digilib.itb.ac.id/gdl/view/66876 |
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