Harmonic Analysis of symmetric and anti-symmetric laminated skew plate using finite element method

Abstract

In this paper, harmonic behaviour of laminated composite skew plates is presented with a symmetric and anti-symmetric arrangement of layers. The convergence and validity of the model have been checked by comparing different type of example available in published literature. From the comparison study, it can be easily observed that proposed model is being capable of solving the skew structures with adequate accuracy. The effects of various skew angles, lamination scheme and number of layers have been demonstrated. The results show the maximum variation in the non-dimensional fundamental frequency is limited to 3% for a symmetrically laminated skew plate. It is clear from the results that the maximum resonance amplitude occurs at the first fundamental mode of vibration at different skew angle. Finite element package ANSYS is employed for analysis of the plates. The SHELL281 element is chosen to mesh the model.

Progressive failure prediction of laminated composite thin skew plates under transverse loading using nonlinear strains

“…A close look at the literature reveals that the first ply and progressive failure analyses of laminated composite rectangular plates were reported by some researchers since last two decades. On the other hand, the aesthetically appreciated thin skew plates have received attention from a few researchers like Xie et al, 31 Narwariya et al 32 etc. for free and forced vibration behaviour.…”

“…The effectiveness and reliability of the DSC-Element approach for oblique plates with big skew angles were studied by Lai et al 28 The effects of skew angles, aspect ratios, fibre orientation angles and laminate stacking sequences on natural frequencies of antisymmetric laminated composite skew plates were studied by Srinivasa et al 29 Naghsh and Azhari 30 examined large amplitude free vibration of point supported laminated composite skew plates employing element-free Galerkin method based on von-Kármán’s assumptions. The free vibration characteristics of parallelogram shaped laminated thin plates under multi-point supported elastic boundary using an improved Fourier series method were studied by Xie et al 31 Narwariya et al 32 presented the harmonic behaviour of laminated composite skew plates using symmetric and anti-symmetric layer configurations.…”

Classifying Cutout Shapes and Predicting Cutout Location using Regression and Classification Techniques

“…It's important to note that the choice of cutout shape and location is highly dependent on the specific application and the mechanical properties of the materials used in the sandwich structure. Therefore, some researchers investigated the effect of different cutout shapes on the NF of sandwich structure [28], [29]. They revealed how differently shaped cutouts affect the NF of sandwich structures.…”

Stable Characteristics Optimization of Anti-Symmetric Cylindrical Shell with Laminated Carbon Fiber Composite

“…Baharali [ 21 ] studied the effects of carbon nanotubes (CNTs) and fiber carbon on the vibration frequency of anti-symmetric cylindrical shells, and evaluated the effects of carbon nanotube weight percentage and geometric parameters. Narwariya [ 22 , 23 ] conducted numerical studies on the free vibration and harmonic analysis of anti-symmetric laminates, and obtained the frequency-amplitude relationship of anti-symmetric anisotropic plates. Garg [ 24 ] studied the static response of anti-symmetric laminated composites under high temperature and humidity conditions, considering various parameters such as the influence of heat and humidity coefficients, material anisotropy, boundary and load conditions, and span-to-thickness ratio.…”