In this paper ,the general solution of steady-state one dimensional asymmetric thermal stresses and electrical and mechanical displacements of a hollow cylinder made of functionally graded material and piezoelectric layers is developed .The material properties ,except the Poisson's ration, are assumed to depend on the variable radius and they are expressed as power functions of radius. The temp...

Initiation and successive development of organs induce mechanical stresses at the cellular level. Using the tomato shoot apex, a new study now proposes that mechanical strain regulates the plasma membrane abundance of the PIN1 auxin transporter, thereby reinforcing a positive feed-back loop between growth and auxin accumulation.

A functionally graded material beam with generalized boundary conditions is contemplated in the present study in order to examine the deformation and stress behavior under thermal and thermo-mechanical load. Three discrete combinations of functionally graded materials have been deliberate in including a wide range of materials and material properties. The variation of material properties has be...

The fracture of vulnerable carotid plaques is the major cause of cerebrovascular thromboembolic events such as strokes and ischemic attacks. To prevent this issue, carotid endarterectomy is the closely treatment for pathological plaques. The vulnerability is believed to be related to mechanical forces, vessel surface condition, cell activities and chemical environment. Several authors developpe...

The influence of thermomechanical deformation on the residual stresses caused by quenching in bar shaped specimens of heat treatable steel 42CrMo4 has been investigated using a mechanical method for detemining the distribution of residual stresses of the first kind. The results obtained show that the residual stress distribution after quenching is dected by the strengthening and softening of th...

38 Aortic pulse pressure arises from the interaction of the heart, the systemic arterial 39 system and peripheral microcirculations. The complex interaction between 40 hemodynamics and arterial remodeling precludes the ability to experimentally ascribe 41 changes in aortic pulse pressure to particular adaptive responses. Therefore, the purpose 42 of the present work was to use a human systemic ...

the main design criteria of ballasted railway tracks include rail deflections, rail bending stresses, rail wheel contact stresses, sleeper bending moments and ballast sleeper contact pressures. numerous criteria have been defined for the design of ballasted railway tracks owing to the various mechanical properties of track components and their complex interaction. therefore, railway track desig...

Direct metal SLS processes use a high power laser beam to selectively fuse fully metallic powder to directly produce functional metal components or tooling. As a thermal dynamic process, it inevitably causes thermal stresses, stress-induced deformations and cracking. Understanding these is very important in controlling residual stresses and stress-induced deformations. In this research, the res...

BACKGROUND Cardiac myocytes experience mechanical stress during each heartbeat. Excessive mechanical stresses under pathological conditions cause functional and structural remodeling that lead to heart diseases, yet the precise mechanisms are still incompletely understood. To study the cellular and molecular level mechanotransduction mechanisms, we developed a new 'cell-in-gel' experimental sys...

Enzymes are deformable molecules: the molecular structure can exist in essentially a continuum of different conformations. These are accessible by applying mechanical stress to the molecule. Mechanics then provides a general molecular mechanism to modulate enzymatic reactions, by applying mechanical stresses which deform the enzyme. There are approximately 10 known different enzymatic reactions...