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Keywords: compressibility
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. October 2011, 133(10): 101004.
Published Online: October 31, 2011
... (including cartilage) were constructed from the images acquired without the load. The carpal bone motions from the unloaded state to the loaded state were determined using a series of 3D image registrations. Cartilage thickness was assumed uniform at 1.0 mm with an effective compressive modulus of 4 MPa...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. September 2011, 133(9): 094503.
Published Online: October 4, 2011
.... Two loading rates (0.01 and 500 mm/s), two flexion angles (0° and 15°), and two spinal levels (T11-T13 and T14-L2) were studied, following a full factorial experimental plan with one repetition. Compression was applied to each functional unit to create a vertebral fracture. The load-to-failure, loss...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. August 2011, 133(8): 081007.
Published Online: September 15, 2011
... in the plasma membrane (PM) and nuclear surface area (NSA) of compressed myoblasts, in order to identify resemblance or differences in mechanical performances across the cells. For this purpose, we utilized our previously developed confocal microscopy-based three-dimensional cell-specific finite element...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. August 2011, 133(8): 081002.
Published Online: August 30, 2011
... the thorax, head-neck, and upper extremity mass of a 50th percentile male. Both platforms were raised to the drop height and released in unison. Deceleration characteristics of the lower platform were modulated by foam at the bottom of the drop tower. The upper platform applied compressive inertial loads...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. February 2011, 133(2): 024503.
Published Online: January 31, 2011
.... These tissues were then subjected to three deformation conditions each to a maximal stretch ratio of 1.23: uniaxial, constrained uniaxial, and biaxial. Uniaxial deformation was applied in the circumferential direction, while biaxial deformation was applied simultaneously in the circumferential and compressive...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. December 2010, 132(12): 121006.
Published Online: November 8, 2010
...Mathieu Charlebois; Michael Pretterklieber; Philippe K. Zysset Osteoporosis-related vertebral body fractures involve large compressive strains of trabecular bone. The small strain mechanical properties of the trabecular bone such as the elastic modulus or ultimate strength can be estimated using...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. November 2010, 132(11): 114506.
Published Online: October 27, 2010
... computational studies have demonstrated that radially aligned fibers stiffen a material in unconfined compression most by limiting lateral expansion while vertically aligned fibers buckle under the compressive loads. In this short communication, we show that in conjunction with swelling, these intuitive...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. September 2010, 132(9): 091004.
Published Online: August 16, 2010
... influenced the mechanical response of the porcine cervical spine (a surrogate or model for the human lumbar spine) exposed to acute anterior shear failure loading. Thirty porcine cervical spine specimens (15 C3-C4 and 15 C5-C6) were placed under a 1600 N compressive load and subsequently loaded in anterior...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. August 2010, 132(8): 081009.
Published Online: June 28, 2010
... high levels of compression and shear, causing cracks to form and grow. The direction of crack growth was highly dependent on the bone’s microstructure: major cracks grew in the weakest possible structural direction. Using a single value of the critical distance ( L = 320 μ m ) , combined...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. December 2008, 130(6): 061014.
Published Online: October 15, 2008
... determined during constrained compression. These models may be useful in finite element analyses of surgical constructs involving impacted and unimpacted MCBs. MCB is impacted layer by layer in the femoral canal during revision surgery. The influence of different layers on the mechanical properties...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. April 2008, 130(2): 021002.
Published Online: March 25, 2008
...F. Amirouche; F. Romero; M. Gonzalez; L. Aram Polyethylene wear after total hip arthroplasty may occur as a result of normal gait and as a result of subluxation and relocation with impact. Relocation of a subluxed hip may impart a moment to the cup creating sliding as well as compression at the cup...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. December 2004, 126(6): 779–786.
Published Online: February 4, 2005
... of this study was to investigate the effects of enzymatic degradation on the interstitial fluid load support mechanism of articular cartilage in unconfined compression. Thirty-seven immature bovine cartilage plugs were tested in unconfined compression before and after enzymatic digestion. The peak fluid load...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. October 2004, 126(5): 545–551.
Published Online: November 23, 2004
... the latter stimulus produces simultaneous compression in the unstretched direction. It is not known, however, if cells respond differently to pure stretching than to pure compression. This study was performed to address this issue. Human aortic endothelial cells were seeded on deformable silicone membranes...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. June 2004, 126(3): 330–339.
Published Online: June 24, 2004
... fatigue life to the imposed stress level. The elastic modulus reduction of the bone specimens was observed to depend on the maximum compressive strain, while the rate of residual strain accumulation was a function of the stress level. A model was developed for the upper and lower bounds of bone elastic...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. April 2004, 126(2): 258–263.
Published Online: May 4, 2004
... produced allodynia responses for nerve root strains at two-thirds of the magnitudes of those strains which produced the corresponding behaviors for silk ligation. Thresholds for nerve root compression producing the onset (8.4%) and persistence of pain (17.4%–22.2%) were determined for silk ligation...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. February 2002, 124(1): 63–71.
Published Online: October 2, 2001
...T. L. Arthur Moore; L. J. Gibson In this study we investigated how microdamage accumulated with increasing compressive strain in bovine trabecular bone. We found that little damage is created in the linear elastic region, up to −0.4 percent strain. At an average strain of − 0.76 percent ± 0.25...