نتایج جستجو برای: mean strain energy density
تعداد نتایج: 1739408 فیلتر نتایج به سال:
Need to high performance and low sensitivity explosives, led to wide spread research throughout the world. for access to modern and safe explosive materials. For this purpose high energy-density materials (HEDM) are good candidate. In this paper, has been reviewed the recent developments in the field of High energy density materials (HEDMs) and investigated their criteria and requirements. Also...
in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...
The growth of slant cracks by fretting fatigue of a half plane in contact with a flat rounded pad was studied. The mode I and mode II stress intensity factors for cracks of various lengths and directions were calculated using the semi-analytical method of the distribution of dislocations, and their cumulative effect on the crack growth was investigated using the strain energy density criterion....
Background : Dietary energy density and dietary diversity score (DDS) are two representative factors of dietary quality. In the current study we evaluated these factors in Isfahanian youths. Materials and Methods: This cross-sectional study was conducted on 289 healthy female youths who were randomly selected from students of Isfahan university of medical sciences. A validated semi quantitativ...
Fracture has always been a serious concern in the design and repair of steel structures such as ships. Because of these concerns, much research has been ongoing in the causes of fractures and in ways which they could be predicted and thus prevented. The objective of this study was to flnd, test and evaluate a method for measuring tht:: critical strain energy density with tensile specimens. Plas...
The strain, stress and strain energy density of a vanadium dioxide (VO2)-based microactuator were obtained from experimental curvature measurements as a function of temperature. The study revealed fully reversible strain and stress changes of up to −0.32% and −510 MPa, respectively, and a maximum strain energy density of approximately 8.1 × 105 J/m3 through a temperature window of only 15 ◦C. T...
Few multiaxial constitutive laws under the vasoactive condition have been proposed as compared with those under the passive condition. The author and his colleagues have studied biaxial isometric properties of vasoactive rabbit arteries [1] although the constitutive law has not been proposed. The experiments for 10 common carotid arteries of rabbit were performed under the passive condition and...
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