in this paper, a nonlinear free vibration analysis of thin annular functionally graded (fg) plate integrated with two uniformly distributed actuator layers made of piezoelectric (pzt4) material on the top and bottom surfaces of the annular fg plate is presented based on kirchhoff plate theory. the material properties of the fgm core plate are assumed to be graded in the thickness direction acco...

Abstract Suffusion is the phenomenon responsible for internal erosion, and process by which finer soil particles are moved through constrictions between larger seepage forces. Generally, gap-graded known to be susceptible suffusion. Meanwhile, suffusion of well-graded silty sand resulting behavior not well understood. Moreover, previous researches on laboratory tests focused study critical hydr...

Mangroves in gulf of Kachchh, Gujarat, India has been studied for grain size spectrum and textural parameters namely phi mean, standard deviation, skewness and kurtosis. Grain size spectrum shows a marked variation in the upstream riverine input stretch. Variation of energy conditions is controlled by the fluvial profile in the channel. Textural pattern shows complicated profile as a result of ...

The Jammu Region (JR) in the northwestern Himalayas trigged by medium to high magnitude near-field as well far-field earthquake events, including most recent 2019 Mirpur earthquake. In this paper, an attempt has been made develop zonation map for liquefaction hazard JR based on potential index ( $$\mathrm{LPI}$$ ) and probability of $${P}_{L}$$ ). To achieve this, factor safety against was esti...

It is proved in this paper that an irreducible module over the non-graded Virasoro-like algebra L, which satisfies a natural condition, is a GHW module or uniformly bounded. Furthermore, we give the complete classification of indecomposable L-modules V = ⊕ m,n∈Z Cvm,n which satisfy Lr,svm,n ⊆ Cvr+m,s+n+1 + Cvr+m,s+n.

let $g$ be a group with identity $e$. let $r$ be a $g$-graded commutative ring with a non-zero identity and $m$ be a graded $r$-module. in this article, we introduce the concept of graded almost semiprime submodules. also, we investigate some basic properties of graded almost semiprime and graded weakly semiprime submodules and give some characterizations of them.

Functionally graded material (FGM) arches may be subjected to a locally radial load and have different distributions leading nonlinear in-plane buckling behavior. Little studies is presented about effects of the type on FGM under in literature insofar. This paper focuses investigating behavior fixed uniformly distributed incorporating distributions. New theoretical solutions for limit point bif...

This paper presents a nonlinear vibration analysis of functionally graded graphene platelet (GPL) reinforced plates on elastic foundations. Uniformly or non-uniformly distributed internal pores were present in the plates. Based modified Halpin-Tsai micromechanics model and extended rule mixture, material properties evaluated. The governing equations, coupled with effect foundations, derived by ...

Co-extrasion involves extrasion of multiple layers at the same time. Functionally graded materials comprising various layers with different properties can be produced through co-extrusion. Rheological control is vital for successful co-extrusion of layered cement-based materials. The paste flow in the barrel and the die land in a ram extruder should be plug-like, while the paste should be shear...