...Manuel Lucas Sampaio de Oliveira; Thomas K. Uchida Sophisticated muscle material models are required to perform detailed finite element simulations of soft tissue; however, state-of-the-art muscle models are not among the built-in materials in popular commercial finite element software packages...

... was developed using finite element approach. The model was validated step by step starting with the HCL only. To validate the HCL model, vibrational measurements on the HCL were performed using a laser-doppler-vibrometer (LDV). Then, a silicone cap was placed onto the HCL to provide an interface between the HCL...

...Oliver J. Morgan; Howard J. Hillstrom; Rogerio Bitar; Daniel Sturnick; Matthew F. Koff; Scott J. Ellis; Jonathan T. Deland, III; Rajshree Hillstrom The foot is a highly complex biomechanical system for which finite element (FE) modeling has been used to evaluate its loading environment. However...

... mechanical tests for assessment of plate fracture risk, this study applied loads of common activities of daily living (ADLs) to implanted femur finite element (FE) models with PFF fixation constructs with an existing or a healed PFF. Based on FE simulated plate mechanics, the standard four-point-bend test...

... no guideline to select the optimal posterior fixation strategy for TL burst fracture. We utilized a T10-L3 TL finite element model to simulate L1 burst fracture and four surgical constructs with one- or two-level suprajacent and infrajacent instrumentation (U1L1, U1L2, U2L1, and U2L2). This study was aimed...

... device (e.g., dummy) is required. Finite element model counterparts to the physical dummies are also useful tools in the evaluation of injury risk, but require validated constitutive material models used in the dummy. However, material model fitting can result in models that are over-fit: they match well...

... of the interstitial fluid flow within the organ of corti (OoC). Three detailed finite element (FE) models of the cochlear short section (CSS) are studied. In model 1, the CSS is without fluids; model 2 includes the OoC fluid, but not the exterior scalae fluids; and model 3 is the CSS with both scalae and OoC fluids...

..., but they are typically not predictive. The current study presents a novel integrated approach with high-speed stereo radiography, musculoskeletal modeling, and finite element (FE) modeling for evaluation of subject-specific, in vivo knee mechanics in a healthy subject performing a seated knee extension and weight...

... e-mail:  baroc001@umn.edu 26 03 2019 17 10 2019 27 11 2019 artery biomechanics cardiovascular finite element dissection Ascending thoracic aortic aneurysms (ATAAs) are characterized by abnormal dilation of the ascending aorta, where the vessel exceeds its normal...

... remains unclear. Using finite element models with various femoral cartilage geometries, we explore how defects change cartilage deformation and joint kinematics assuming loading representative of the maximum joint compression during the stance phase of gait. We show how defects, in combination...

... to the balance of vessel wall strength and the mechanical stress caused by systemic blood pressure. Previous finite element analyses of AAAs have shown that ILT can reduce and homogenize aneurysm wall stress. These works have largely considered ILT to be homogeneous in mechanical character or have idealized...

..., a three-dimensional (3D) finite element model of the L3–L4 spinal segment was generated and calibrated to axial compression and pure moment loading. The AF model explicitly recognizes the two heterogeneous networks of fibers. The presence of radial fibers demonstrated a pronounced effect on the local disc...

... received November 5, 2017; final manuscript received August 14, 2018; published online November 29, 2018. Assoc. Editor: David Corr. 05 11 2017 14 08 2018 transvaginal mesh complications pelvic organ prolapse pore diameter finite element Each year ∼300,000 women in the U.S...

... 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...

... fibrillation, and delamination represent early signs of hip osteoarthritis (OA). This damage may be caused by elevated first principal (most tensile) strain and maximum shear stress. The objectives of this study were to use a population of validated finite element (FE) models of normal human hips to evaluate...

... in the cell filament network, and altered how the cell changed its shape under tension. Findings from this study have implications on understanding how cells interact with their surrounding ECM, as well as in the context of mechanosensation. biomechanics finite element multiscale modeling cell-matrix...

... of models were developed in which a circulatory system model was coupled to an existing series of finite element (FE) models of the left ventricle (LV). The circulatory models were used to provide realistic boundary conditions for the LV models. This was developed for the JSim analysis package...

... between the two models was less than 5%. Fig. 1 The finite element model of an intact tibiofemoral joint A left human knee joint (healthy female volunteer, 36 years old) at full extension was scanned by magnetic resonance imaging (ESAOTE/Artoscan-C, GE group) under the following settings...

... of the finite element model [ 385 ]. These methods are an exciting new direction, coupling FEA and growth models for understanding the mechanical regulation in healing and in tissue-engineering applications. Insights from computational models using constitutive models with specific collagen fiber...

...Kevin L. Troyer; Snehal S. Shetye; Christian M. Puttlitz Finite element (FE) models of articular joint structures do not typically implement the fully nonlinear viscoelastic behavior of the soft connective tissue components. Instead, contemporary whole joint FE models usually represent...