نتایج جستجو برای: رویکرد cosserat
تعداد نتایج: 45240 فیلتر نتایج به سال:
We propose a first example of a simple classical field theory with nonholonomic constraints. Our model is a straightforward modification of a Cosserat rod. Based on a mechanical analogy, we argue that the constraint forces should be modeled in a special way, and we show how such a procedure can be naturally implemented in the framework of geometric field theory. Finally, we derive the equations...
-Dislocation theory is used to invoke a strain gradient theory of rate independent plasticity. Hardening is assumed to result from the accumulation of both randomly stored and geometrically necessary dislocations. The density of the geometrically necessary dislocations scales with the gradient of plastic strain. A deformation theory of plasticity is introduced to represent in a phenomenological...
In the present contribution anisotropic structure of two-dimensional linear Cosserat elasticity is investigated. The symmetry classes this model are derived and detailed in a synthetic way. Particular attention paid to specific features Elasticity which sensitivity non-centrosymmetry as well chirality. These aspects important for application continuum theory mechanical modelling lattices metama...
The paper studies the propagation of shear elastic waves in a layer on basis simplified Cosserat model. One planes bounding is loaded with inertial mass, second boundary fixed. possibility appearance localized (surface) wave along surface established. velocity determined short-wave and long-wave approximations.
This paper communicates an analytical study on computing the natural frequencies and in-plane deflections caused by static forces in panel walls using Euler-Bernoulli, Timoshenko, Timoshenko Goodier, Couple-stress, Micropolar-Cosserat theory. The highlights formulation of transfer matrix via state-space method spatial domain; from coupled governing equations motion that arises theory captures n...
هدف: همانگونه که مشهود است، در سازمانهای خدماتی بهمنظور برندسازی نیاز است ارزشهای برندشان فعال و نهادینه شود؛ با این پیشفرض، پژوهش پیشرو هدف استخراج مدل فعالسازی برند داخلی از منظر فعالیتهای مدیریت منابع انسانی تعریف اجرا شده است.طراحی/ روششناسی/ رویکرد: روش مطالعۀ موردی رویکرد کیفی بانک ملت برای توسعۀ پیش گرفته شد. دو مرحلۀ اصلی طراحی گردید مصاحبههای عمیق فردی ۱۹ مدیر کارشناس مربوطه ...
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