This paper proposes a stiffness sensitivity analysis with principal strain application to decrease the out-of-plane vibration, which is main source of sound radiation mechanical structures thin plate parts. The evaluated as differential coefficient target response respect design variable, e.g., or mass. For suppressing we pay attention finding an appropriate location on structure add local stif...

Computational patient-specific modeling has the potential to yield powerful information for selection and planning of fracture treatments if it can be developed to yield results that are rapid, focused and coherent from a clinical perspective. In this study we introduce the utilization of a principal strain fixation ratio measure (SR) defined as the ratio of principal strains that develop in a ...

It is well known that a state of pure shear has distinct sets of basis vectors or coordinate systems: the principal axes, in which the stress σ is diagonal, and pure shear bases, in which diagσ = 0. The latter is commonly taken as the definition of pure shear, although a state of pure shear is more generally defined by trσ = 0. New results are presented that characterize all possible pure shear...

The first objective of this study was to experimentally determine surface bone strain magnitudes and directions at the donor site for bone grafts, the site predisposed to stress fracture, the medial and cranial aspects of the transverse cross section corresponding to the stress fracture site, and the middle of the diaphysis of the humerus of a simplified in vitro laboratory preparation. The sec...

A novel technique is used to measure the atomic-level elastic strain tensor of amorphous materials by tracking geometric changes of the first diffuse ring of selected area electron diffraction patterns (SAD). An automatic procedure, which includes locating the centre and fitting an ellipse to the diffuse ring with sub-pixel precision is developed for extracting the 2-dimensional strain tensor f...

During traumatic spinal cord injury (SCI), the spinal cord is subject to external displacements that result in damage of neural tissues. These displacements produce complex internal deformations, or strains, of the spinal cord parenchyma. The aim of this study is to determine a relationship between these internal strains during SCI and primary damage to spinal cord gray matter (GM) in an in viv...