Abstract This paper presents an analytical model to investigate the static behaviour of sandwich plates comprised two isotropic face sheets and a honeycomb core. Through-thickness transverse shear stresses were considered using unified displacement field with which various plate theories implemented, i.e., exponential, third-order, hyperbolic, sinusoidal, fifth-order, Mindlin, classic theory. The equilibrium equations simply-supported panel derived principle virtual work Navier solution was...

Fracture fixation and limb deformity correction in pediatric orthopedics often use temporary metallic devices. These devices’ higher stiffness compared to cortical bone leads stress shielding, causing significant density reduction, periprosthetic loosening, growth interference. The 3D‐printed triply periodic minimal surface (TPMS) structures present a promising engineering solution match while ensuring reliable implant strength. In this study, finite‐element modeling experimental testing are...

The aim of the current work was to illustrate effect fibre area correction factor on results modelling natural fibre-reinforced composites. A mesoscopic approach is adopted represent stochastic heterogeneity composite, i.e. a meso-structural numerical model prototyped using finite element method including quasi-unidirectional discrete elements embedded in matrix. verified by experimental from previous jute fibres but extendable every with cross-sectional non-uniformity. suggested fine-tune...

Abstract To improve the mechanical properties of cast aluminium alloys several post‐heat treatments are known. However, these cannot directly be transposed to additively via selective laser melting manufactured alloys, e. g., aluminium‐silicon‐magnesium (AlSi10Mg). Therefore, this study aims determine suitable optimise SLM‐built AlSi10Mg specimen. The influence various treatment conditions on material characteristics was examined through hardness and tensile tests. findings indicate that...

Abstract Determination of the early-age compressive strength concrete is essential for quality assurance, safety, and economy construction projects. Due to manual operation on site, conventional maturity meters are not efficient live monitoring strength. Higher levels automated computerised improvements have been made possible by recent developments in wireless communications, sensor technologies, data processing methods across industry. For real-time early-stage strength, current study...

The rapid development of additive manufacturing (AM) technology and the consequential microstructural variations have brought simulation aspects into focus. To capture an accurate mechanical response, multiscale methods are used to determine macroscopic constitutive behaviour. Among these methods, recently introduced Direct FE2 (DFE2) technique has shown some success in predicting material behaviour via direct incorporation representative microstructure volumes structure. present study...

Herein, the general constitutive equation of bi-phasic materials equipped with orientation tensor is presented in direct notation. The formulation refined by some correction factors specific to natural fibre-reinforced composites; then, a planar case derived. necessity local information emphasised through introduction auxiliary maps, which included volume fraction and data. A semi-analytical homogenisation method introduced finite element analysis. Auxiliary maps are shown be better...

Abstract The current study aims to formulate the behaviour of anti‐sandwiches that considers residual stresses and thermal strains by means a layer‐wise approach. To this end, constitutive equations classical linear elasticity are extended form Duhamel‐Neumann equations. direct approach is adopted project three‐dimensional problem onto two‐dimensional surfaces, i.e., each layer anti‐sandwich modelled as single surface represents overall layer. formulation begins with decoupling deformation...

In the current study, representative volume element (RVE) is used to model randomly generated nanocomposite structures consisting of carbon nanotubes (CNTs) embedded in an epoxy resin matrix. The finite Method utilized for numerical simulations and investigation influential parameters on RVEs. order automatize whole procedure - fromgenerating models conducting analyses a subroutine-based programming approach adopted using MSC Marc package Fortran language. can successfully predict increase...

Abstract Depth‐sensing indentation tests are used to characterize non‐conventional materials, such as biomaterials, which normally require particular considerations in terms of specimen preparation. The force‐depth measurements during the test reveals valuable information about material can be obtain elastic modulus sample. Analytical 2D formulas available literature incorporate a scale factor establish proper relationship between and force‐indentation data. Finite element analysis 3D was...

The intricate geometrical configuration of an auxetic structure enables high energy dissipation capacity at the expense a highly nonlinear mechanical response. Under external stimuli, complicated deformation mechanisms emerge which dictate extent dissipation. Recently, new ‘plastic hinge tracing’ method (Dhari et al., 2021) was introduced to detect such for elastoplastic porous materials. This approach is however subjective and cumbersome since it requires monitoring several plastic regions...

This study challenges the Direct FE2 method to model voids in additively manufactured parts. Two sets of polylactic acid (PLA) tensile coupons—without any and with 23% voids—were using fused deposition modelling (FDM) assessed under monotonic loading. An in-house Python script was developed implement steps ABAQUS commercial package. A homogenised medium used conventional finite element (FE) whereas discrete adopted FE2. Despite same isotropic elastoplastic material progressive damage,...

In the composite industry, wet lay-up and vacuum bagging are widely used, low-cost manufacturing processes. This paper investigates mechanical performance of layup bagged carbon fibre-reinforced laminates compressed in a hydraulic press at different compaction pressures. The external pressure is shown to significantly reduce void content, increase fibre volume fraction tested laminates. tensile flexural properties specimens subjected high levels found be comparable those out-of-autoclave...