... the mechanical properties of bones have been studied for several decades, the high strain rate data and corresponding material parameters of the rate-dependent constitutive models are still limited. In this study, split Hopkinson pressure bar technique was used to test bovine cortical bones, to obtain the rate...

... of soft tissues is critical for many physiological and medical device applications. Accurate mechanical test data is crucial for both obtaining the form and robust parameter determination of the constitutive model. For incompressible soft tissues that are either membranes or thin sections, planar biaxial...

... the shear behavior of the interlamellar compartment would enhance the study of its mechanobiology. In this study, physical experiments were utilized to describe interlamellar shear and define a constitutive model, which was implemented into a finite element analysis. Ovine annulus fibrosus (AF) specimens...

... similar. The peak value and distribution of maximal principal stress on the ACL was also affected by the constitutive model (Fig. 4 ). Under 134 N anterior tibial force, high maximal principal stress of the ACL occurred on the posterolateral area of the femoral insertion in all three models...

... appropriately characterized through biaxial tensile testing, which avoids the limitation of nonphysiologic traction-free boundary conditions present during uniaxial testing. Combined with a structural constitutive model, biaxial testing can help identify the specific structural mechanisms underlying...

... a structural constitutive modeling approach. The mechanical behavior of the collagen fiber component of the UBW ECM was determined from the biaxial stress-stretch response of normal UBW ECM, based on bimodal fiber recruitment that was motivated by the UBW’s unique collagen fiber structure. The resulting fiber...

...Anna Pandolfi; Gerhard A. Holzapfel Experimental tests on human corneas reveal distinguished reinforcing collagen lamellar structures that may be well described by a structural constitutive model considering distributed collagen fibril orientations along the superior-inferior and the nasal-temporal...

... the experimentally observed material behavior. The models used were Fung’s theory of quasilinear viscoelasticity (QLV) and the eight-chain model developed for rubber elastomers by Arruda and Boyce (1993, “A Three-Dimensional Constitutive Model for the Large Stretch Behavior of Rubber Elastic Materials,” J. Mech...

...W. Yang; T. C. Fung; K. S. Chian; C. K. Chong The identification of a three dimensional constitutive model is useful for describing the complex mechanical behavior of a nonlinear and anisotropic biological tissue such as the esophagus. The inflation tests at the fixed axial extension of 1, 1.125...

... Orientation Into a Structural Constitutive Model for Planar Collagenous Tissues ,” ASME J. Biomech. Eng. 0148-0731 10.1115/1.1544508 , 125 ( 2 ), pp. 280 – 287 . Backer , S. , and Petterson , D. R. , 1960 , “ Some Principles of Nonwoven Fabrics ,” Text. Res. J. 0040-5175 , 30 ( 9...

...Seonghun Park; Gerard A. Ateshian Very limited information is currently available on the constitutive modeling of the tensile response of articular cartilage and its dynamic modulus at various loading frequencies. The objectives of this study were to (1) formulate and experimentally validate...

... knowledge of the tissue’s mechanical response. The constitutive models presented for the three age groups here can be used in further studies of the human abdominal aorta. For example, the information presented currently can be used as age-matched control data for the study of abdominal aortic aneurysm...