Dynamic compressive response of porcine muscle measured using a split Hopkinson bar system with a pair of PVDF force transducers
The classic metallic Split Hopkinson Pressure Bar (SHPB) cannot capture the transmitted signal accurately when measuring soft biological tissue, because of the very low wave impedance and strength of this material. So the dynamic compressive response of porcine muscle has been investigated by using...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-10-01
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| Series: | Defence Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914722001854 |
| _version_ | 1797649671643987968 |
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| author | Yao-ke Wen Liang Xu Ai-jun Chen Fang-dong Dong Bin Qin |
| author_facet | Yao-ke Wen Liang Xu Ai-jun Chen Fang-dong Dong Bin Qin |
| author_sort | Yao-ke Wen |
| collection | DOAJ |
| description | The classic metallic Split Hopkinson Pressure Bar (SHPB) cannot capture the transmitted signal accurately when measuring soft biological tissue, because of the very low wave impedance and strength of this material. So the dynamic compressive response of porcine muscle has been investigated by using a modified SHPB. The forces on both ends of the sample measured using Polyvinylidene fluor (PVDF) transducers were applied to calculate the stress in the specimen instead of the strain gauge signal on the transmitted bar. Moreover, a circular cardboard disk pulse shaper was applied for generating a suitable incident pulse to achieve stress equilibrium and constant strain rates in the specimens. Then, the dynamic mechanical properties of porcine muscle parallel and perpendicular to the fiber directions were measured, and the stress equilibrium process during loading was analyzed, as well as the inertia-induced extra stress being corrected. Furthermore, quasi-static tests were conducted at two different strain rates to investigate the strain rate dependence using a universal material testing machine. The results show that the stress-strain curves are sensitive to strain rate in the two different loading directions. The compressive stress perpendicular to the fiber direction is stiffer than that parallel to the fiber direction. In addition, a strain rate-dependent constitutive model was developed based on the mechanical response of the muscle at different strain rates and fitted to the experimental data. The results show that the overall fit is good, and the constitutive model could describe the muscle's dynamic mechanical properties. |
| first_indexed | 2024-03-11T15:50:13Z |
| format | Article |
| id | doaj.art-b0c5855c998e4b64ad240f23d9002760 |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-03-11T15:50:13Z |
| publishDate | 2023-10-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-b0c5855c998e4b64ad240f23d90027602023-10-26T04:18:01ZengKeAi Communications Co., Ltd.Defence Technology2214-91472023-10-0128298305Dynamic compressive response of porcine muscle measured using a split Hopkinson bar system with a pair of PVDF force transducersYao-ke Wen0Liang Xu1Ai-jun Chen2Fang-dong Dong3Bin Qin4School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, ChinaSchool of Science, Nanjing University of Science and Technology, Nanjing, 210094, China; Corresponding author.School of Science, Nanjing University of Science and Technology, Nanjing, 210094, ChinaScience and Technology on Transient Impact Laboratory, Beijing, 102202, ChinaScience and Technology on Transient Impact Laboratory, Beijing, 102202, ChinaThe classic metallic Split Hopkinson Pressure Bar (SHPB) cannot capture the transmitted signal accurately when measuring soft biological tissue, because of the very low wave impedance and strength of this material. So the dynamic compressive response of porcine muscle has been investigated by using a modified SHPB. The forces on both ends of the sample measured using Polyvinylidene fluor (PVDF) transducers were applied to calculate the stress in the specimen instead of the strain gauge signal on the transmitted bar. Moreover, a circular cardboard disk pulse shaper was applied for generating a suitable incident pulse to achieve stress equilibrium and constant strain rates in the specimens. Then, the dynamic mechanical properties of porcine muscle parallel and perpendicular to the fiber directions were measured, and the stress equilibrium process during loading was analyzed, as well as the inertia-induced extra stress being corrected. Furthermore, quasi-static tests were conducted at two different strain rates to investigate the strain rate dependence using a universal material testing machine. The results show that the stress-strain curves are sensitive to strain rate in the two different loading directions. The compressive stress perpendicular to the fiber direction is stiffer than that parallel to the fiber direction. In addition, a strain rate-dependent constitutive model was developed based on the mechanical response of the muscle at different strain rates and fitted to the experimental data. The results show that the overall fit is good, and the constitutive model could describe the muscle's dynamic mechanical properties.http://www.sciencedirect.com/science/article/pii/S2214914722001854PVDFHopkinson barPorcine muscleDynamic mechanical propertiesConstitutive model |
| spellingShingle | Yao-ke Wen Liang Xu Ai-jun Chen Fang-dong Dong Bin Qin Dynamic compressive response of porcine muscle measured using a split Hopkinson bar system with a pair of PVDF force transducers Defence Technology PVDF Hopkinson bar Porcine muscle Dynamic mechanical properties Constitutive model |
| title | Dynamic compressive response of porcine muscle measured using a split Hopkinson bar system with a pair of PVDF force transducers |
| title_full | Dynamic compressive response of porcine muscle measured using a split Hopkinson bar system with a pair of PVDF force transducers |
| title_fullStr | Dynamic compressive response of porcine muscle measured using a split Hopkinson bar system with a pair of PVDF force transducers |
| title_full_unstemmed | Dynamic compressive response of porcine muscle measured using a split Hopkinson bar system with a pair of PVDF force transducers |
| title_short | Dynamic compressive response of porcine muscle measured using a split Hopkinson bar system with a pair of PVDF force transducers |
| title_sort | dynamic compressive response of porcine muscle measured using a split hopkinson bar system with a pair of pvdf force transducers |
| topic | PVDF Hopkinson bar Porcine muscle Dynamic mechanical properties Constitutive model |
| url | http://www.sciencedirect.com/science/article/pii/S2214914722001854 |
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