Impact response of functionally graded conical shells

Abstract

This paper presents low velocity impact response of functionally graded pretwisted conical shells. The modified Hertzian contact law which accounts for permanent indentation is utilized to compute the contact force and other impact parameter. The time dependent equations are solved by Newmark's time integration scheme. An eight noded isoparametric quadratic element is employed in the present finite element formulation. A parametric study is carried out to investigate the effects of triggering parameters like initial velocity of impactor, twist angle, oblique impact angle, location of impact for Stainless Steel-Nickel functionally graded conical shell subjected to low velocity impact.

Stochastic impact responses analysis of functionally graded plates

“…4. The finite element formulation and subsequent validation of the code are based on the previous deterministic study [37].…”

“…Dey and Karmakar [36] investigated the influence of impact angle on the impact responses of composite conical shells. Dey et al [37] studied the influence of twist angle, impact angle, and velocity of elastic impactor on transient impact response of FGM conical shell. Prem et al [38] carried out low-velocity impact analysis on the ultra-high-performance concrete panel by experimental and numerical methods.…”

Probing the prediction of effective properties for composite materials

“…The functionally graded material (FGM) is a type of composite material which is inhomogeneous mixture of two materials (Kashtalyan, 2004;Woodward and Kashtalyan, 2011;Dey et al, 2015aDey et al, , 2015bDey et al, , 2019Mukhopadhyay et al, 2018Mukhopadhyay et al, , 2020Karsh et al, 2019;Dey et al, 2016). In recent studies, most of the researchers (Ansari et al, 2019;Wu et al, 2017;Zhang et al, 2020) fabricated and investigated these FGMs by reinforcing graphene and its derivatives into various types of matrices.…”