Study on nonlinear constitutive model of skin under compression load over a wide range of strain rates

• Autorzy: Zhang Xiaoping , Wen Cun , Tang Chengli , Liu Susu , Wen Yaoke , Wang Yaping , Bao Zhenyu , Luo Shaomin

Identyfikatory

DOI

10.37190/ABB-01947-2021-04

• Języki publikacji: EN

Abstrakty

EN

Purpose: In wound ballistics, skin has obvious blocking effect in the biological target penetration of projectiles. An analytical description of skin mechanical properties under compression can set the basis for the numerical simulation and the evaluation of blocking effect. Methods: In this study, an improved three-parameter solid visco-elastic model was proposed to describe the skin creep phenomenon. And then combined with Maxwell and Ogden model, a new nonlinear skin constitutive model, consisting of hyper-elastic unit, creep unit and relaxation unit in parallel, was established. Here, we examine the material properties of freshly harvested porcine skin in compression at strain rates from 0.01/s to 4000/s. Results: The model is verified by comparison with the experimental results by our test and that in the literature at different strain rates. Conclusions: It shows that calculated results of the constitutive model agree well with the experiment data at extremely low to high strain rates, which is useful for the description of the heterogeneous, nonlinear viscoelastic, relaxation and creep mechanical response of skin under compression.

Słowa kluczowe

EN

constitutive model; pig skin; creep phenomenon

PL

model konstytutywny; skóra świni; zjawisko pełzania

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2021
• Tom: Vol. 23, no. 4
• Strony: 161--171
• Opis fizyczny: Bibliogr. 35 poz., rys., tab.

Twórcy

autor

Zhang Xiaoping

• School of Mechanical Engineering, Nantong University, Nantong, China

autor

Wen Cun

• School of Mechanical Engineering, Nantong University, Nantong, China

autor

Tang Chengli

• School of Mechanical Engineering, Nantong University, Nantong, China

autor

Liu Susu

• School of Mechanical Engineering, Nantong University, Nantong, China

autor

Wen Yaoke

• School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing, China

autor

Wang Yaping

• School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing, China

autor

Bao Zhenyu

• School of Mechanical Engineering, Nanjing University of Science & Technology, Nanjing, China

autor

Luo Shaomin

• School of Aerospace Engineering, Guizhou Institute of Technology, Guiyang, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).