نتایج جستجو برای: second strain gradient theory

تعداد نتایج: 1639485  

Journal: :journal of ultrafine grained and nanostructured materials 0
reza ansari department of mechanical engineering, university of guilan, p.o.box 3756, rasht, iran. shahram ajori department of mechanical engineering, university of guilan, p.o.box 3756, rasht, iran. sina malakpour department of mechanical engineering, university of guilan, p.o.box 3756, rasht, iran.

importance of covalent bonded two-dimensional monolayer nanostructures and also hydrocarbons is undeniably responsible for creation of new fascinating materials like polyphenylene polymer, a hydrocarbon super honeycomb network, so-called porous graphene. the mechanical properties of porous graphene such as its young’s modulus, poisson’s ratio and the bulk modulus as the determinative properties...

Journal: :Engineering With Computers 2022

Size-dependent behaviours of metal foam microbeams with three different porosity distribution models are studied in this paper. Based on the finite element model, a normal and shear deformation theory has been employed for first time to investigate their structural by using modified strain gradient considering effects variable material length scale parameter. The equations motion boundary condi...

Journal: :Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 2012

A.R Nezamabadi K Rajabi, Sh Hosseini Hashemi

The forced vibration behaviors are examined for nonlocal strain gradient nanobeams with surface effects subjected to a moving harmonic load travelling with a constant velocity in terms of three beam models namely, the Euler-Bernoulli, Timoshenko and modified Timoshenko beam models. The modification for nonlocal strain gradient Timoshenko nanobeams is exerted to the constitutive equations by exc...

Journal: :ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik 2016

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید