... the electrospinning process. This confounds attempts at quantifying strains exerted on adherent cells during electrospun matrix deformation. We have developed a novel mechanical test platform that allows deposition and tensile testing of electrospun fibers in a highly parallel arrangement to simplify mechanical...

... period, the entire abdominal fascia was harvested for mechanical property testing and elastographic strain analysis. Preliminary results from uniaxial tensile testing indicate a significant increase in the modulus of toughness strain energy, with at least a 50% increase in the MSC treated defects...

... on mechanical function of the bulk material with degeneration. 05 08 2008 19 02 2009 21 10 2009 biological tissues biomechanics molecular biophysics proteins tensile testing intervertebral disk degeneration tensile properties nonlinearity anisotropic hyperelastic model...

... tools to evaluate the risk of fetal loss in motor vehicle crashes, are based on a limited number of quasistatic material tests of the placenta. This study presents a total of 64 uniaxial tensile tests on coupon specimens from six human placentas at three strain rates. Material properties...

... to fit in an Instron 8872 servohydraulic test machine, the system measures CSA by orbiting a laser transducer in a circular path around a soft tissue specimen held by tissue clamps. CSA measurements can be conducted before and during tensile testing. The system was validated using machined metallic...

... conducted on 20 unembalmed PMHSs. Nondestructive whole cervical spine tensile tests with varying cranial end condition and anteroposterior loading location were used to generate response corridors for computational model development and validation. The cervical spines were sectioned into three functional...

... in Teflon molds that had arms of different aspect ratios. We implemented our anisotropic biphasic theory of tissue-equivalent mechanics to simulate the compaction by finite element analysis. Prior to tensile testing, the construct geometry was standardized by cutting test samples with a 1:1 cruciform punch...

... scanning electron micrographs. Mechanical properties of the scaffolds were assessed by uniaxial tensile testing as well as creep testing. Viscoelastic parameters were determined by fitting creep data to Burger’s four-parameter model. Oscillatory dynamic mechanical testing was used to determine the storage...

... valve cusp and the bovine pericardium. Validation tests on prepared samples showed maximum error of direct strain measurement to be 0.3%. Aortic valve specimens were found to have larger inhomogeneous strains during tensile testing than bovine pericardium. Clamping effects were more pronounced...

... element analysis orthopaedics porosity tensile testing Extraneous noise sources must be excluded from AE studies; this was done by setting a suitable threshold as a front-end filter of the AE instrumentation. Prior to testing, AE sensors were attached to the testing machine while a specimen...

... surface topography measurement tensile testing titanium mineralized tissue roughened dental implants laser spallation experiment interface strength Because of its biocompatibility, titanium is widely used in implants to replace diseased or damaged bone in orthopedic and prosthodontic...

... applications in biomedicine. Of particular interest is the use of electrospun PCL tubes as scaffolds for tissue engineered blood vessel implants. Stress relaxation and tensile tests have been conducted with specimens at room temperature (21°C) and 37°C. Additionally, to probe the effects of moisture...

... contribute to ear mechanics, especially for theoretical analysis of human ear function. 21 04 2006 19 04 2007 biological tissues biomechanics bone CCD image sensors correlation methods digital signals ear materials testing stress relaxation stress-strain relations tensile testing...

... of a penetrating injury: a low-speed projectile was released through a myocardial material slab. Sensitivity studies were performed to establish the necessary grid resolution and time-step size. Results of the simple shear and tensile test simulations demonstrated the correct implementation of the constitutive...

... was axial preferred in both layers and the mucosa contained more collagen, which were in agreement with the findings through a pair of uniaxial tensile test in our previous study. The model was expected to be used for the prediction of stress distribution within the esophageal wall under the physiological...

...Martijn A. J. Cox; Niels J. B. Driessen; Carlijn V. C. Bouten; Frank P. T. Baaijens Traditionally, the complex mechanical behavior of planar soft biological tissues is characterized by (multi)axial tensile testing. While uniaxial tests do not provide sufficient information for a full...

... point burst and/or uniaxial tensile testing to gauge the strengths of the constructs. This study extends this analysis to include creep and stepwise stress relaxation viscoelastic testing methodologies. TEBV models exhibiting diverse mechanical behaviors as a result of different architectures ranging...

.... The properties of the PLLA micro-specimens were assessed before and after sterilization (EtO cold gas, H 2 O 2 -plasma, beta- and gamma-irradiation). Tensile tests, and creep and recovery tests were carried out at 37°C. Additionally the thermal and thermo-mechanical characteristics were investigated using...

... in Group 1 were modeled using a polynomial strain energy function W , while patients in Groups 2 and 3 were modeled using an exponential form of W , suggesting an age-dependent shift in the mechanical response of this tissue. Conclusion: The biaxial tensile testing results reported here are, to our...

... induced stress concentrations were simulated, but the absence of material associated with a pore or void was not considered. This may be an acceptable simulation for small pores, but means large pores were not modeled. There are two possible ways to approach this problem. First, rejecting tensile test...