نتایج جستجو برای: viscoelastic continuum damage
تعداد نتایج: 281843 فیلتر نتایج به سال:
Soft fiber-reinforced tissues such as the cornea, tendons, and blood vessels have a unique combination of mechanical properties that enables them to perform important structural, protective, and energyabsorbing applications. Because of their fiber-reinforced microstructure, these tissues are extraordinarily stiff and strong for their weight. They also possess a unique combination of flexibility...
There is evidence that damage, viscoelastic stiffness properties, and postyield mechanical properties are related in bone tissue. Our objective was to test whether presence of a flaw would have an influence on the apparent viscoelastic properties of bone. Examining the effect of flaw orientation on apparent viscoelastic properties and utilization of dynamic mechanical analysis (DMA) as a nondes...
Life assessment on the base of grain boundary creep cavitation of 1%Cr - 0.5%Mo low alloy steel has been discussed in this paper. Since microstructural degradation is one of the most important mechanisms that affects creep life, it is necessary to assess microstructural damage in order to estimate the life. Microstructural damage within the grain boundaries is a continuous phenomena starting fr...
paper presents the viscoelastic behaviour of skin tissue under different thermal loadings and discusses the effect of temperature and corresponding dermal collagen denaturation on the mechanical viscoelastic properties of skin tissue. Differential scanning calorimetry (DSC) has been used to detect dermal collagen denaturation and to assess its thermal stability. The DSC results under various he...
This paper presents a fully three-dimensional constitutive model for anisotropic viscoelasticity suitable for the macroscopic description of fibre reinforced composites that experience finite strains. An essential feature of the model is that the matrix and the fibres are treated separately allowing then as many bundles of fibres as desired. Moreover, the relaxation and/or creep response is bas...
In this paper, an elastic metamaterial with multiple dissipative resonators is presented for broadband wave mitigation by properly utilizing interactions from resonant motions and viscoelastic effects of the constitutive material. The working mechanism of the metamaterial to suppress broadband waves is clearly revealed in a dissipative mass-in-mass lattice system through both negative effective...
A growing body of experiments has demonstrated that mechanical forces play an important role in regulating tissue formation, morphogenesis and tumor growth. Growing tissues, notably cancerous tumors, are continuously remodeled by cell division and apoptosis (cell death) that couple to the elastic deformations of the material, changing its mechanical properties. The paper by Ranft et al. propose...
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