Ashes Maji

Bio: Ashes Maji is an academic researcher from Asansol Engineering College. The author has contributed to research in topics: Composite plate. The author has an hindex of 1, co-authored 1 publications receiving 4 citations.

Development and applications of shear deformation theories for laminated composite plates: An overview:

Abstract: This review, overviews the development and applications of shear deformation (SD) laminated composite plate theories. The present overview mainly focuses on theoretical models based on SD theories ...

Finite element for composite plate bending based on efficient higher order theory

Abstract: A triangular bending element based on an efficient higher order plate theory is developed for symmetric laminated composites. This nonconforming element has five degrees of freedom in each node. It passes proper bending and shear patch tests in arbitrary meshes in isotropic materials. Thus it converges to the exact solution. To demonstrate the element and compare with other theories, finite element solutions are obtained for a static bending problem under sinusoidal loading. The present finite element results give deflections and stresses that are in good agreement with three-dimensional elasticity solutions. Thus this element provides an efficient and accurate tool for the analysis of symmetric multilayered composite plates

Antiplane shear of an asymmetric sandwich plate

Abstract: An asymmetric three-layered laminate with prescribed stresses along the faces is considered. The outer layers are assumed to be much stiffer than the inner one. The focus is on long-wave low-frequency anti-plane shear. Asymptotic analysis of the original dispersion relation reveals a low-frequency harmonic supporting a slow quasi-static (or static at the limit) decay along with near cut-off wave propagation. In spite of asymmetry of the problem, the leading order shortened polynomial dispersion relation factorises into two simpler ones corresponding to the fundamental mode and the aforementioned harmonic. The associated 1D equations of motion derived in the paper are also split into two second-order operators in line with the factorisation of the shortened dispersion relation. Asymptotically justified boundary conditions are established using the Saint-Venant’s principle modified by taking into account the high-contrast properties of the laminate.

Influence of depositing sequence and materials on interfacial characteristics and mechanical properties of laminated composites

Abstract: Laminated composites offer customizable properties based on applications manufactured in one operation by hybrid additive and subtractive manufacturing (HASM) technology. Such manufacturing options are fascinating, since joining two metallic materials is challenging, especially if they are two dissimilar metals without significant defects. Laminated composites were fabricated by transforming the additive manufacturing system and subtractive milling to keep the interface of the directed energy deposition smooth and clear. The microhardness, phase, oxidation, elemental content and microstructural evolution of the interface with different laminated composites were examined. The flexural strength and tensile strength of the laminated composites were measured through a three-point bending test and tensile test at room temperature. The experimental results suggest that the laminated composites had better performances than single materials of identical size. Different deposition sequences led to diverse interfacial microstructures and mechanical properties. The overall performance of laminated composites of Inconel 718 (IN718) deposited on 316L stainless steel (SS316L) was better than that of the other deposition sequence. New substances produced on the interface of SS316L and 1040 steel (1040) laminated composites obviously improved the microhardness, tensile strength and bending strength.