Computational analysis of Strain Generated Potentials (SGPs) associated with transmission of acousto-elastic vibrations in normal and osteoporotic long bones
نویسندگان
چکیده
Electric potentials generated by mechanical strain of bones (SGPS: strain generated potentials) are one of the cofactors, which determine the adaptive remodelling processes in bone tissue [1,12,14]. The significance of the potentials SGPs in bone tissue biodynamics results from the electrosensivity of bone cells membranes via the Ca voltage-gated channels [7], Fig.1a. Bioelectric signals are also important in bone fractures healing: a strongly electronegative potential (the so-called fracture potential) appears immediately after a bone fracture, and during fracture healing it is normalized toward the normal bioelectric potential of a long bone [6], Fig.1b.
منابع مشابه
Axial and Torsional Free Vibrations of Elastic Nano-Beams by Stress-Driven Two-Phase Elasticity
Size-dependent longitudinal and torsional vibrations of nano-beams are examined by two-phase mixture integral elasticity. A new and efficient elastodynamic model is conceived by convexly combining the local phase with strain- and stress-driven purely nonlocal phases. The proposed stress-driven nonlocal integral mixture leads to well-posed structural problems for any value of the scale parameter...
متن کاملFree vibrations analysis of a sandwich rectangular plate with electrorheological fluid core
In this paper, a rectangular sandwich plate with a constrained layer and an electrorheological (ER) fluid core is investigated. The rectangular plate is covered an ER fluid core and a constraining layer to improve the stability of the system. The two outer layers of the sandwich structure are elastic. The viscoelastic materials express the middle layer behavior under electric field and small st...
متن کاملAssessing different nonlinear analysis methods for free vibrations of initially stressed composite laminated plates
In this paper, the nonlinear free vibrations of thin symmetric and non-symmetric cross-ply composite plates subjected to biaxial initial stresses are investigated. Because of their excellent properties such as specific strength and specific stiffness, composite plates have wide applications in aerospace and mechanical structures. Based on Von-Karman's strain-displacement relations and using Gal...
متن کاملBending of Shear Deformable Plates Resting on Winkler Foundations According to Trigonometric Plate Theory
A trigonometric plate theory is assessed for the static bending analysis of plates resting on Winkler elastic foundation. The theory considers the effects of transverse shear and normal strains. The theory accounts for realistic variation of the transverse shear stress through the thickness and satisfies the traction free conditions at the top and bottom surfaces of the plate without using shea...
متن کاملAnalysis of Aeolian Vibrations of Transmission Line Conductors and Extraction of Damper Optimal Placement with a Comprehensive Methodology
Energy balance method is an effective and simple method which is used in the amplitude calculation of Aeolian vibration in transmission lines with Stockbridge damper. However, the accuracy of the results obtained by this method, heavily depends on the assumed mode shapes of the conductor vibration. In this study, by considering an appropriate model for the conductor vibration, a comprehensive m...
متن کامل