...Francesco Dalle Mura; Rocco Furferi; Lapo Governi Purpose This study aims to improve the mechanical behaviour and aesthetic realism of costal cartilages (CCs) in clinical simulators. Current mannequin components use thermoplastic polyurethane ( TPU ) with reduced infill, which inadequately...

...Lucas M. Morand; Garrett J. Pataky Purpose The inherent strain method for laser powder bed fusion additive manufacturing ( AM ) allows for rapidly simulating process-induced distortion while still retaining the influence of thermomechanical physics. However, previous implementation of a single...

... and a numerical simulation, were used to assess temperature profiles, melt pool morphology and associated heat transfer mechanisms, including conduction and keyhole mode. The analytical model considers conduction as the dominant heat transfer mechanism; the numerical model also includes convection and radiation...

... responsive 4D textiles. Subsequently, the effects of different PLA thicknesses and Lycra knit fabric relative elongation on the permanent shape of thermally responsive 4D textiles were studied. Finally, a simulation program was written, and a case in this study demonstrates the usage of thermally responsive...

...-Grez can be contacted at: jramos@ing.puc.cl 15 04 2022 09 06 2022 28 07 2022 30 07 2022 © Emerald Publishing Limited 2022 Emerald Publishing Limited Licensed re-use rights only Microstructure Simulation 316 L stainless steel Laser-based powder bed fusion...

...Mohammad Qasim Shaikh; Thomas A. Berfield; Sundar V. Atre Purpose The purpose of this paper is to investigate a simulation solution for estimating the residual stresses developed in metal fused filament fabrication (MF³) printed parts. Additionally, to verify these estimates, a coupled...

... by process parameter changes in an FFF machine. Moreover, a virtual additive manufacturing (AM) plant handling multiple FFF machines and part designs is simulated to compare the energy and production dynamics of operational strategies that treat part orders differently based on their inherent MAR. Design...

... using 3D printing. The simulation model of the designed business model was constructed by a system dynamics method, and the application of the designed business model was analysed by a scenario simulation. Findings Mass selective customization-centralized manufacturing (MSC-CM) business model...

... and offers no guarantee of success. Accordingly, this study aims to propose a multi-scale simulation framework to guide the choice of processing parameters in a more pragmatic manner. Design/methodology/approach In the proposed approach, a powder layer, ray tracing and heat transfer simulation models...

...Prisca Aude Eutionnat-Diffo; Yan Chen; Jinping Guan; Aurélie Cayla; Christine Campagne; Xianyi Zeng; Vincent Nierstrasz Purpose This paper aims to evaluate and simulate the impact of the build platform temperature of the three-dimensional (3D) printer, the structure and heat transfer of textiles...

... a quantitative performance model for a generic powder bed fusion AM system in a spare parts supply chain, thus providing insights into this less-explored area in the literature. Design/methodology/approach In this study, analysis based on a discrete event simulation was carried out for the use of AM...

.../methodology/approach A three-dimensional model was proposed to predict local powder melting process. The model accounts for heat transfer, melting, solidification and evaporation in granular system at particle scale. The proposed model has been proved to be a good approach for the simulation of the laser...

...-factorial design of experiments (DOE) to determine optimal build parameters. Air gap, raster width and contour width are held constant. A three-dimensional nonlinear finite element model is built to simulate the flexural behavior of the FDM parts. Findings Experimental results include flexure properties...

... analysis. Considering this empirical equation, the process parameters were optimized to maximize the tensile strength by using genetic algorithm. Finally, the tensile tests of the specimens were simulated via the general-purpose finite element package of ABAQUS. Findings The outputs of the numerical...

... the bond strength, which was compared to the measured bond strength of hollow acrylonitrile butadiene styr (ABS) boxes printed at various processing conditions. Findings The simulated bond strengths predicted the measured bond strengths with a coefficient of determination of 0.795. The total diffusion...

..., and the insert surface temperature, longevity and part properties were evaluated. Complementary information was acquired using computer simulation. Findings Similar behavior and part quality were observed in machined and DMLS inserts. The latter were used for 500 cycles without any signs of failure. PolyJet...

... Post curing Simulation Stereolithography In a customer-driven market, each manufacturer has to produce his products in a very short period. This is a prerequisite to survive in the global market. Decrease in production cycle time and increase in product complexity require new innovative ideas...

... are measured and compared with numerical simulations. A good agreement is found. A new method to easily find the absorption coefficient of the laser into the grain and the heat exchange coefficient with the exterior is developed. Originality/value This paper leads to a better understanding of the necking...

...A.K. Singh; Regalla Srinivasa Prakash Purpose The aim of this paper is to predict the optimum settings of the process parameters for selective laser sintering process. Design/methodology/approach A simulation model is prepared using author written subroutines in ANSYS^® Parametric...

... computationally efficient numerical simulation technique with the commercially available finite element software domain for the accurate prediction of the temperature history and heat‐affected zones of the laser sintered parts so as to finally obtain the density of the sintered sample. Design/methodology...