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    Anisotropic Compressive Properties of Passive Porcine Muscle Tissue

    Source: Journal of Biomechanical Engineering:;2014:;volume( 136 ):;issue: 011::page 111003
    Author:
    Pietsch, Renee
    ,
    Wheatley, Benjamin B.
    ,
    Haut Donahue, Tammy L.
    ,
    Gilbrech, Ryan
    ,
    Prabhu, Rajkumar
    ,
    Liao, Jun
    ,
    Williams, Lakiesha N.
    DOI: 10.1115/1.4028088
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The body has approximately 434 muscles, which makes up 40–50% of the body by weight. Muscle is hierarchical in nature and organized in progressively larger units encased in connective tissue. Like many soft tissues, muscle has nonlinear viscoelastic behavior, but muscle also has unique characteristics of excitability and contractibility. Mechanical testing of muscle has been done for crash models, pressure sore models, back pain, and other disease models. The majority of previous biomechanical studies on muscle have been associated with tensile properties in the longitudinal direction as this is muscle's primary mode of operation under normal physiological conditions. Injury conditions, particularly high rate injuries, can expose muscle to multiple stress states. Compressive stresses can lead to tissue damage, which may not be reversible. In this study, we evaluate the structure–property relationships of porcine muscle tissue under compression, in both the transverse and longitudinal orientations at 0.1 s−1, 0.01 s−1, or 0.001 s−1. Our results show an initial toe region followed by an increase in stress for muscle in both the longitudinal and transverse directions tested to 50% strain. Strain rate dependency was also observed with the higher strain rates showing significantly more stress at 50% strain. Muscle in the transverse orientation was significantly stiffer than in the longitudinal orientation indicating anisotropy. The mean area of fibers in the longitudinal orientation shows an increasing mean fiber area and a decreasing mean fiber area in the transverse orientation. Data obtained in this study can help provide insight on how muscle injuries are caused, ranging from low energy strains to high rate blast events, and can also be used in developing computational injury models.
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      Anisotropic Compressive Properties of Passive Porcine Muscle Tissue

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    http://yetl.yabesh.ir/yetl1/handle/yetl/154093
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    contributor authorPietsch, Renee
    contributor authorWheatley, Benjamin B.
    contributor authorHaut Donahue, Tammy L.
    contributor authorGilbrech, Ryan
    contributor authorPrabhu, Rajkumar
    contributor authorLiao, Jun
    contributor authorWilliams, Lakiesha N.
    date accessioned2017-05-09T01:05:41Z
    date available2017-05-09T01:05:41Z
    date issued2014
    identifier issn0148-0731
    identifier otherbio_136_11_111003.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/154093
    description abstractThe body has approximately 434 muscles, which makes up 40–50% of the body by weight. Muscle is hierarchical in nature and organized in progressively larger units encased in connective tissue. Like many soft tissues, muscle has nonlinear viscoelastic behavior, but muscle also has unique characteristics of excitability and contractibility. Mechanical testing of muscle has been done for crash models, pressure sore models, back pain, and other disease models. The majority of previous biomechanical studies on muscle have been associated with tensile properties in the longitudinal direction as this is muscle's primary mode of operation under normal physiological conditions. Injury conditions, particularly high rate injuries, can expose muscle to multiple stress states. Compressive stresses can lead to tissue damage, which may not be reversible. In this study, we evaluate the structure–property relationships of porcine muscle tissue under compression, in both the transverse and longitudinal orientations at 0.1 s−1, 0.01 s−1, or 0.001 s−1. Our results show an initial toe region followed by an increase in stress for muscle in both the longitudinal and transverse directions tested to 50% strain. Strain rate dependency was also observed with the higher strain rates showing significantly more stress at 50% strain. Muscle in the transverse orientation was significantly stiffer than in the longitudinal orientation indicating anisotropy. The mean area of fibers in the longitudinal orientation shows an increasing mean fiber area and a decreasing mean fiber area in the transverse orientation. Data obtained in this study can help provide insight on how muscle injuries are caused, ranging from low energy strains to high rate blast events, and can also be used in developing computational injury models.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleAnisotropic Compressive Properties of Passive Porcine Muscle Tissue
    typeJournal Paper
    journal volume136
    journal issue11
    journal titleJournal of Biomechanical Engineering
    identifier doi10.1115/1.4028088
    journal fristpage111003
    journal lastpage111003
    identifier eissn1528-8951
    treeJournal of Biomechanical Engineering:;2014:;volume( 136 ):;issue: 011
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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