Comparison of Tensile and Creep Properties of SAC305 and SACX0807 at Room Temperature with DIC Application
The contribution presents the verification of the methodology of accelerated creep tests from the point of view of obtaining more information about the stress–strain behaviour of the investigated materials using the Digital Image Correlation method. Creep tests are performed on SAC305 and SACX0807 l...
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MDPI AG
2024-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/2/604 |
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| author | Zbynek Paska Radim Halama Petr Dymacek Bhuvanesh Govindaraj Jaroslav Rojicek |
| author_facet | Zbynek Paska Radim Halama Petr Dymacek Bhuvanesh Govindaraj Jaroslav Rojicek |
| author_sort | Zbynek Paska |
| collection | DOAJ |
| description | The contribution presents the verification of the methodology of accelerated creep tests from the point of view of obtaining more information about the stress–strain behaviour of the investigated materials using the Digital Image Correlation method. Creep tests are performed on SAC305 and SACX0807 lead-free solders and are supplemented by numerical modelling using the finite element method, considering the viscoplastic model based on the theory of Perzyna, Chaboche, and Norton. The stress–strain behaviour of both solders appears to be very similar at applied strain rates of 0.0002–0.0026%/s and applied creep stresses of 15–28 MPa. Initially, the viscoplastic model is calibrated using an analytical approach. Then, the finite element model updating approach is used to optimise the material parameters based on the simultaneous simulations of creep and tensile tests. As a result, the total objective function value is reduced almost five times due to optimisation. The proposed type of accelerated test with an hourglass specimen proves to be suitable for calibrating the considered class of viscoplastic models. The main benefit is that a single specimen is required to obtain creep curves on various stress levels. |
| first_indexed | 2024-03-08T09:59:13Z |
| format | Article |
| id | doaj.art-cf877287fd5848f280de16ab2ec87a8d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-08T09:59:13Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-cf877287fd5848f280de16ab2ec87a8d2024-01-29T13:43:05ZengMDPI AGApplied Sciences2076-34172024-01-0114260410.3390/app14020604Comparison of Tensile and Creep Properties of SAC305 and SACX0807 at Room Temperature with DIC ApplicationZbynek Paska0Radim Halama1Petr Dymacek2Bhuvanesh Govindaraj3Jaroslav Rojicek4Department of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDepartment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicInstitute of Physics of Materials, Czech Academy of Sciences, Zizkova 22, 616 00 Brno, Czech RepublicDepartment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDepartment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicThe contribution presents the verification of the methodology of accelerated creep tests from the point of view of obtaining more information about the stress–strain behaviour of the investigated materials using the Digital Image Correlation method. Creep tests are performed on SAC305 and SACX0807 lead-free solders and are supplemented by numerical modelling using the finite element method, considering the viscoplastic model based on the theory of Perzyna, Chaboche, and Norton. The stress–strain behaviour of both solders appears to be very similar at applied strain rates of 0.0002–0.0026%/s and applied creep stresses of 15–28 MPa. Initially, the viscoplastic model is calibrated using an analytical approach. Then, the finite element model updating approach is used to optimise the material parameters based on the simultaneous simulations of creep and tensile tests. As a result, the total objective function value is reduced almost five times due to optimisation. The proposed type of accelerated test with an hourglass specimen proves to be suitable for calibrating the considered class of viscoplastic models. The main benefit is that a single specimen is required to obtain creep curves on various stress levels.https://www.mdpi.com/2076-3417/14/2/604creepSAC305SACX0807DICviscoplasticityFEM |
| spellingShingle | Zbynek Paska Radim Halama Petr Dymacek Bhuvanesh Govindaraj Jaroslav Rojicek Comparison of Tensile and Creep Properties of SAC305 and SACX0807 at Room Temperature with DIC Application Applied Sciences creep SAC305 SACX0807 DIC viscoplasticity FEM |
| title | Comparison of Tensile and Creep Properties of SAC305 and SACX0807 at Room Temperature with DIC Application |
| title_full | Comparison of Tensile and Creep Properties of SAC305 and SACX0807 at Room Temperature with DIC Application |
| title_fullStr | Comparison of Tensile and Creep Properties of SAC305 and SACX0807 at Room Temperature with DIC Application |
| title_full_unstemmed | Comparison of Tensile and Creep Properties of SAC305 and SACX0807 at Room Temperature with DIC Application |
| title_short | Comparison of Tensile and Creep Properties of SAC305 and SACX0807 at Room Temperature with DIC Application |
| title_sort | comparison of tensile and creep properties of sac305 and sacx0807 at room temperature with dic application |
| topic | creep SAC305 SACX0807 DIC viscoplasticity FEM |
| url | https://www.mdpi.com/2076-3417/14/2/604 |
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