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Purpose The purpose of this research was to design an intake manifold which will improve the functioning of the engine. This will improve the acceleration of the car which will help in performing better at the dynamic events at a Formula Student Competition. Design/methodology/approach The approach was to use the Helmholtz resonator theory to find the appropriate runner length for the desired rotation per minute range. Along with this, it is important to ensure that there is minimum flow separation for which computational fluid dynamics analysis was carried out. Findings The research showed that all the processes involved in this system are dynamic, so steady-state analysis is not quite relevant instead transient analysis will help in getting a better idea. Originality/value Majority of research is primarily focused on convergent divergent nozzle, to try and minimize the effect of the restrictor. But to fine-tune the performance of the engine, it is important to consider the effects of runners and plenum so as to choose appropriate runner length and plenum volume.

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This work investigates the effect of 3D representative volume element (RVE) grain morphology resolution on the prediction of fracture and damage evolution for tailor hot stamped steels. Scanning electron micrographs were used to build RVE meshes from coarse‐8 × 8 (<1 elements μm−3) to high‐50 × 50 (53–81 elements μm−3) element densities. For a uniaxial stress‐state, the tailored material condition (TMC1) (ferrite‐pearlite‐martensite) RVE nucleated voids due to separation between small martensite grains and the RVE fracture strain was 0.41 and 0.53 for the 50 × 50 and 25 × 25 RVE, respectively. The TMC3 (ferrite‐bainite‐martensite) RVE predicted high strain partitioning between the irregularly shaped martensite grains and the higher resolution RVE predicts a 39% lower fracture strain. The large grained martensite‐bainite TMC5 RVE predicted relatively similar void accumulation and strain partitioning behavior for the 50 × 50 and 25 × 25 RVE models, while the coarser 13 × 13 and 8 × 8 models predicted higher fracture strains due to low grain morphology resolution. Compared to an experimentally derived fracture locus, plane strain and equibiaxial deformation of the RVEs was shown to predict the equivalent fracture strains reasonably well, but like in the uniaxial case, the coarser RVEs overpredict the fracture strain.

3D printing has emerged as a transformative technology that has revolutionized various industries and unlocked endless possibilities in the world of Research and Development. 3D printing allows the fabrication of three- dimensional parts from computerized designs by utilizing additive manufacturing technologies. Its importance stems from its capacity to expedite prototyping, speed up production, and stimulate innovation in industries including as healthcare, manufacturing and aerospace. The main objective of this study is to analyze the mechanical behavior of 3 dimensional (3D) printed Poly-Lactic Acid (PLA) parts when their infill density and infill geometry are varied. We have taken 3 infill geometries (Grid, Triangle, Gyroid) at 4 different infill densities (40%, 60%, 80%, 100%), these parts are measured for tensile strength and optimal conditions are identified.