The present study concentrates on development of conceptual proof for sisal reinforced polymer matrix composite structural applications subjected to low velocity impact using a finite element (FE) approach. proposed sisal-epoxy various thicknesses 3.2 mm, 4 mm and 4.8 is different velocities 1 m/s, 2 m/s 3 ranging in the regime energy absorbed damage mitigation behaviour composite. consequence ...

Abstract Integration of composite materials in aviation applications undeniably offer multiple important benefits, and more modelling techniques failure analysis tools are increasingly being developed evaluated to reduce the high costs associated with investigating mechanical characteristics prediction fiber reinforced composites. This article evaluates compares between some most common criteri...

We present an alternative derivation of upper-bounds for the bulk modulus of both two-dimensional and three-dimensional cellular materials. For two-dimensional materials, we recover exactly the expression of the Hashin-Shtrikman (HS) upper-bound in the low-density limit, while for three-dimensional materials we even improve the HS bound. Furthermore, we establish necessary and sufficient condit...

Fiber Metal Laminates (FMLs) are hybrid materials that combine metal components with fiber-reinforced composites. The properties and failure modes of CArbon fiber Reinforced composites/Aluminum (CARALLs) composed T700/PA6 unidirectional prepreg 6061 aluminum alloy were studied using experimental numerical simulation analysis. Through three-point bending experiments, the behavior CARALLs differe...

Pressurized hybrid composite pipe structures, produced by filament wound subjected to impact loads, were numerically investigated. A combined 3D-FE Model based on the use of interlaminar and intralaminar damage models is established. Intralaminar damages such as matrix cracking fibre failures are predicted using 3D Hashin criteria, whereas (delamination) was evaluated cohesive zone elements. Th...

Wind turbine blades are the key components that allow extraction of energy from wind; these often subjected to accidental impacts which usually occurs on moving with maintenance tools, hail, or flying birds, resulting in a significant degradation structural integrity blade. In this paper, numerical simulation is adopted using finite element method (FEM) ABAQUS software investigate mechanical be...

Abstract In this study a numerical simulation is developed using finite element (FE) software Abaqus, to assess and simulate the structural behavior of reinforced concrete column - short corbel assembly strengthened by bonding composite materials The objective presented reproduce considered structure as displacements, strain, mode damages, cracks propagation, ultimate force, main reinforcements...

This paper deals with the development of a numerical simulation methodology for estimating damages in laminate composite materials caused by a low-speed impact. Experimental tests were performed on laminate plates reinforced with woven carbon fibers and epoxy resin. Three thickness plates were evaluated. The impact loads were transversal and punctual. Two lamina failure criteria were evaluated....

Although methods to determine optimal Hashin–Shtrikman bounds for polycrystals of cubic to monoclinic symmetry have been described, the calculation of bounds for triclinic crystals has not previously been possible. The recent determination of elastic moduli of common minerals with low symmetry provides motivation to extend the Hashin–Shtrikman formulation to lower symmetry. Here, Hashin– Shtrik...

This work proposes a novel multi-phase-field formulation to characterize the distinct damage mechanisms and quasi-brittle fracture behaviors in FRC. The phase field driving forces for each failure are first defined based on an anisotropic energy split scheme. Then, PF degradation functions pertinent mode properly with corresponding material quantities, which enables derivation of embedded Hashi...