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Now showing items 131-139 of 139
Nonlinear response and axisymmetric wave propagation in functionally graded soft electro-active tubes
(Elsevier, 2020-10-02)
Soft electro-active (SEA) materials can be designed and manufactured with gradients in their material properties, to modify and potentially improve their mechanical response in service. Here, we investigate the nonlinear ...
Electro-mechanically guided growth and patterns
(Elsevier, 2020-07-01)
Several experiments have demonstrated the existence of an electro-mechanical effect in many biological tissues and hydrogels, and its actual influence on growth, migration, and pattern formation. Here, to model these ...
Noninvasive measurement of local stress inside soft materials with programmed shear waves
(American Association for the Advancement of Science, 2023-03-08)
Mechanical stresses across different length scales play a fundamental role in understanding biological systems¿ functions and engineering soft machines and devices. However, it is challenging to noninvasively probe local ...
Analysis of in vivo skin anisotropy using elastic wave measurements and Bayesian modelling
(Springer, 2023-04-06)
In vivo skin exhibits viscoelastic, hyper-elastic and non-linear characteristics. It is under a constant state of non-equibiaxial tension in its natural configuration and is reinforced with oriented collagen fibers, which ...
Wrinkling of soft magneto-active plates
(Elsevier, 2020-11-03)
Coupled magneto-mechanical wrinkling has appeared in many scenarios of engineering and biology. Hence, soft magneto-active (SMA) plates buckle when subject to critical uniform magnetic field normal to their wide surface. ...
Bending control and stability of functionally graded dielectric elastomers
(Elsevier, 2021-01-18)
A rectangular plate of dielectric elastomer exhibiting gradients of material properties through its thickness will deform inhomogeneously when a potential difference is applied to compliant electrodes on its major surfaces, ...
On the thermodynamic consistency of Quasi-linear viscoelastic models for soft solids
(Elsevier, 2020-12-15)
Originating in the field of biomechanics, Fung's model of quasi-linear viscoelasticity (QLV) is one of the most popular constitutive theories employed to compute the time-dependent relationship between stress and deformation ...
An ultrasonic method to measure stress without calibration: The angled shear wave identity.
(Acoustical Society of America, 2020-12-03)
Measuring stress levels in loaded structures is crucial to assess and monitor structure health and to predict the length
of remaining structural life. Many ultrasonic methods are able to accurately predict in-plane stresses ...
Mechanics of human brain organoids
(American Physical Society, 2020-01-02)
Organoids are prototypes of human organs derived from cultured human stem cells. They provide a reliable and accurate experimental model to study the physical mechanisms underlying the early developmental stages of human ...