Creep test rig for cantilever beam: Fundamentals, prospects and present views

Cross arms in transmission tower are made up of Chengal wood, which degrade and collapse after a long period of service. This is due to creep deformation, and the rate of degradation is expedited due to exposure to extreme tropical climate. Hence, it is crucial to comprehend the early creep stage, which leads to structural failure. Apart from that, there are several research and industrial application gaps of these cross arms. For instance, creep life analysis of actual cross arms is still unexplored. In this study, the state-of-the-art is related to creep experiments and creep test rig designs, espacially on the creep test of a cantilever beam setup. The experimental methodologies implemented two vital approaches, conventional and accelerated techniques. The specific creep experiments on cantilever beam structure are emphasized and suggested in the manuscript as the building blocks for future design of cantilever creep test rig. This helps to guide future development design of cantilever beam creep test rig by fulfilling the specific criteria related to creep fundamentals, numerical modelling analysis, test operation for data evaluation, and development process. At the end, the challenges and improvements on the criteria existing design of test rigs are elaborated

Effect of Silica Aerogel Additive on Mechanical Properties of the Sugar Palm Fiber-Reinforced Polyester Composites

Silica aerogel (SA) was used as fillers in the sugar palm/polyester composite (SPF/PE). Their influence on tensile, flexural, and impact properties of the composite was determined by varying the additive concentration from 1-5 wt% in the resin. The findings from the study indicate that both the strength and modulus of SPF/PE improved significantly by adding SA. Maximum tensile, flexural, and impact strength occurred at an optimum filler concentration of 2-3 wt%. Similarly, the highest tensile and flexural modulus was achieved with 5 wt% and 2 wt%, respectively. The microstructure of SA-infused composites revealed less fiber pullout/slippage compared to the composites without filler

Influence of a silica aerogel filler on the mechanical, thermal, and physical properties of flax/epoxy composite

The influence of Maerogel (MA) on the material properties of the flax fiber reinforced epoxy composites has been investigated. The composites were fabricated using the hot press molding method with incorporation of MA, a kind of silica aerogel derived from the rice husk ash. The effect of different MA concentrations on the thermal, mechanical, and physical properties of flax/epoxy composites was investigated

Mechanical, interfacial and thermal properties of silica aerogel-infused flax/epoxy composites

© Walter de Gruyter GmbH 2021. This is the final manuscript version of an article which has been published in final form at https://doi.org/10.1515/ipp-2020-3964The mechanical, interfacial and thermal properties of a flax/epoxy composite incorporated with a silica aerogel (SA) at0.5, 1.0 and 2.0 wt.% were examined in this work. A set of maximum enhancements of 8.7%, 9.0% and 24.0 % in the impact, inter-laminar shear strength (ILSS) and compressive strengths were achieved by adding 0.5 wt.% SA into the flax/epoxy composites. Also, the results obtained from dynamic mechanical analysis (DMA) indicated that the damping characteristics, peak tan delta and peak loss modulus improved at all filler concentrations, while the glass transition temperature (Tg) decreased slightly. Features of SA such as biodegradability, ability to improve the mechanical properties as observed in this work and enhanced damping characteristics make them suitable for application in machine parts requiring impact resistance and vibration damping characteristics.Peer reviewe