The present study is aimed at investigating the effect of hybridisation on Kevlar/E-Glass based epoxy composite laminate structures. Composites with 3 mm thickness and 16 layers of fibre (14 layers of E-glass centred and 2 outer layers of Kevlar) were fabricated using compression moulding technique. The fibre orientation of the Kevlar layers had 3 variations (0, 45 and 60°), whereas the E-glass fibre layers were maintained at 0° orientation. Tensile, flexural, impact (Charpy and Izod), interlaminar shear strength and ballistic impact tests were conducted. The ballistic test was performed using a gas gun with spherical hard body projectiles at the projectile velocity of 170 m/s. The pre- and post-impact velocities of the projectiles were measured using a high-speed camera. The energy absorbed by the composite laminates was further reported during the ballistic test, and a computerised tomographic scan was used to analyse the impact damage. The composites with 45° fibre orientation of Kevlar fibres showed better tensile strength, flexural strength, Charpy impact strength, and energy absorption. The energy absorbed by the composites with 45° fibre orientation was 58.68 J, which was 14% and 22% higher than the 0° and 60° oriented composites.

This experimental study investigated the influence of a cryogenic machining method on surface roughness during milling of Monel material, compared to convention This experimental study investigated the influence of a cryogenic machining method on surface roughness during milling of Monel material, compared to convention

Construction of the gear system to research the reduced weight and stress distribution of casting metal and carbon fibre. In a hydraulic power transfer device in industrial spinning machines, gearing is one of the most important elements. Given their high level of certainty and controllability, in future devices, gears might dominate as perhaps the most powerful ways of sending electricity. Furthermore, the growing change in the sector to companies like car manufacturing and office automation devices from key sectors like naval boats would entail the refined use of equipment technologies. Model the spur gear model using modelling techniques. To examine the effects study on casting iron and infrastructure projects. For casting structural steel items, displacement charging should really be examined. It is important to compare and evaluate the composite gear with the current cast steel gear.

The study aims to evaluate the roundness error in drilling of Novel Hybrid glass/luffa/epoxy composites by addition of silica nanoparticles in comparison with plain luffa natural fiber composites. he plain luffa natural fiber composite reinforced with epoxy/glass fiber taken as control group(N=20). The luffa/glass material is reinforced along with an epoxy matrix mixed by addition of silica nanoparticles filler taken as an experimental group(N=20). The control group and experimental group are conducted by using a hand lay-up method. Roundness in drilling is conducted as per ASTM standards. Roundness error during drilling was calculated by using the imageJ software and the damaged area was compared for both groups. The G power test was used to assess the number of samples in each group. Glass fiber with plain luffa without filler epoxy composite laminate exhibited a decrease of 64.66% in damage area than the 2% volume fraction of silica nanoparticles luffa/glass laminates. The significant value of P is 0.043 (<0.05). Within the limits of study, glass fiber/luffa fiber reinforced with epoxy material without filler exhibits a significant reduction in the roundness error during the drilling process.

Aim: This study aims to fabricate and evaluate the tensile strength of novel composite panels using basalt fiber composite reinforced by the addition of Silica