Journal of Mechanical and Construction Engineering (JMCE)

The Analysis of Mechanical Properties of Ensete and Nettle Hybrid Natural Fiber Reinforced Composite for Automobile Applications

. Mando Doyo Choto — 2024-04-25

Mechanical Properties of Hybrid Natural Fiber Reinforced Composite for different Applications is necessary to analysis because recently natural fiber composites are overtaking the place of synthetic fiber composites for many applications. It is an alternative to replace the synthetic fiber for particularly automobile interior application. So improveing the mechanical properties of Ensete and Nettle hybrid fiber by analysis each tested parameters’ have attractive attention in this research. most conventional material used for interior and exterior of automobile like metal, plastics and synthetic fiber are not biodegradable and special metal is heavy, not cost effective and subjected to corrosion, rust, and require painting, maintenance at regular intervals. This research aims to determine how to Ensete and Nettle fibers applied for automobile application. To achieve this objective quantitative data was collected from 48 testing specimen. The fiber reinforced epoxy composite was prepared at constant fiber volume percent of 50% with fiber orientation angles of 0°, (0°and 90°), (90° and 0°) and +45°/-45° measured from horizontal axis. The method of modeling and analysis, that was carried out in this research has been done in ANSYS ACP (pre) 2022R2 Workbench software. for comparing the static structural simulation results with the available material data given by the material manufactured, in case of the used test samples, boundary conditions and material properties. The study found that the changing the volume ratio of the composite material adding the strength of tested parameters like tensile, compression, flexural and impact specimen. Therefore the study had a significant influence on interior automobile and other related application. It can be concluded that Ensete and Nettle hybrid natural fiber reinforced composite can be used in non-structural interior components of automobiles like door panels, dashboards, and inner body skins.

Jhama Brick in Construction: A Sustainable Alternative

Shreyanshi Gupta — 2024-04-25

This research project aimed to assess the feasibility and potential advantages of substituting a portion of the coarse aggregate in concrete with Jhama brick aggregates. With concrete being a fundamental construction material, the selection of coarse aggregates significantly impacts its properties. Traditionally, natural resources like gravel and crushed stone are utilized, but concerns regarding resource depletion and environmental impact have spurred interest in alternative materials. Jhama bricks, commonly used in construction across various regions, possess properties that make them promising candidates for replacing coarse aggregates in concrete partially. Laboratory experiments were conducted to evaluate the mechanical, dura- bility, and workability properties of concrete mixes containing different proportions of Jhama brick aggregates. The findings offer valuable insights into the viability of Jhama brick aggregates as a sustainable alternative to conventional coarse aggregates in concrete construction. This research has potential implications for reducing the environmental footprint of concrete production and promoting the utilization of locally available materials.

Performance Evaluation of a 3.5 kW Diesel Engine Fueled with Blended Biodiesel of Mustard Oil

Dr. Shiv Lal — 2024-04-25

In this investigation, methyl ester of Mustard oil was prepared by trans esterification using solid potassium hydro-oxide as catalyst and used in a 3.5kW single cylinder four stroke diesel engine. Tests were performed at different load conditions and the per-formance was analyzed for B5 to B30 blends of Mustard biodiesel and pure mineral diesel. It was concluded that the lower blends of biodiesel enhance the break thermal efficiency and reduce the fuel consumption. It is proved that the use of biodiesel (produced from Mustard oil) in compression ignition engine is a viable substitute to diesel.

Performance Evaluation of a 5 hp Diesel Engine Fueled with Blended Biodiesel of Benola Oil

Dr. Shiv Lal — 2024-04-25

In this communication, methyl ester of Benola oil was prepared by transesterification using solid potassium hydro-oxide as a catalyst and used in a 5 hp single cylinder four stroke diesel engine. Tests were performed at different load conditions and the performance was analyzed for B5 to B30 blends of Benola biodiesel and pure mineral diesel. It was concluded that the lower blends of biodiesel enhance the brake thermal efficiency and reduce fuel consumption. It was also noticed that it reduces carbon pollution but slightly increases the NOx.

Design and Fabrication of FPV Racing Drone

Waqar Ahmed Siddiqui — 2024-04-25

This research focuses on the designing aspects of a first-person view (FPV) Drone. An FPV drone is an unmanned aerial vehicle (UAV) that transmits Hawkeye's view to the ground control station. It's called a Hawkeye similar to the view that an eagle gets when it flies. It is also recognized for its dynamic behavior, the ease and flexibility of maneuvering. The response time of the FPV drone is quite remarkable for the purpose it serves. We have worked on the SP3 F3 racer Flight controller which is known for its extreme autopiloting and stability. Designing, developing, and simulating such a dy-namic drone was a challenging task done with ease. It has a range of about 3 KM and a flight time of 11-12 minutes on (not so vigorous) flying conditions.

Application of Digital Twin in Structural Health Monitoring of Civil Structures: A Systematic Literature Review Based on PRISMA

Girmay Mengesha Azanaw — 2024-04-25

Structural Health Monitoring (SHM) systems are critical for ensuring the safety and longevity of structures. Digital twin technology has emerged as a promising tool to improve the accuracy and efficiency of SHM systems. This paper presents a systematic literature review based on PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) on the applications of digital twin for SHM of civil structures. And this systematic literature review examines the current trends and developments in the application of digital twin technology in SHM systems for structures. The review identified 45 relevant articles published between 2010 and 2023 that covered various applications of digital twin in SHM systems, including buildings, bridges, wind turbines, trains, and gas turbines. Key themes identified from the literature review included the integration of physical models and machine learning algo-rithms, the use of distributed sensor networks, and the importance of real-time data analysis for effective SHM. The findings suggest that digital twin technology has the potential to significantly improve the accuracy and efficiency of SHM systems, but further research is needed to develop more advanced and integrated Digital Twin-Based SHM systems for different types of civil structures.

Performance of Concrete Materials Containing Recycled Aggregate from Construction and Demolition Waste in India

Devesh ojha — 2024-04-25

The recycling and reuse of waste concrete in India have gained significant momentum as sustainable construction practices are increasingly prioritized. This abstract provides a concise overview of the current state of recycling and reuse of waste concrete in India, with a focus on the relevant provisions of the Indian Standard (IS) codes. In-dia produces a substantial amount of construction and demolition waste, including concrete. The IS codes, such as IS 2386 Part 1:1963, IS 2386 Part 3:1963, and IS 456:2000, play a crucial role in guiding the testing, evaluation, and usage of recycled concrete materials. IS 2386 Part 1:1963 outlines testing procedures for aggregates, including recycled aggregates derived from waste concrete. These tests assess properties like particle size distribution, specific gravity, water absorption, and crushing strength to ensure the quality and suitability of recycled aggregates. IS 2386 Part 3:1963 provides methods for testing the compressive strength of concrete cubes made with recycled aggregates. This allows for evaluating the structural performance of recycled concrete. IS 456:2000, the Code of Practice for Plain and Reinforced Concrete, includes provisions for using recycled aggregates in concrete. It establishes maximum limits for replacing natural aggregates with recycled aggregates, ensuring the durability and strength of the resulting concrete. While the IS codes provide essential guidance, challenges remain, including awareness among stakeholders, standardized testing procedures, and the development of appropriate recycling infra-structure. In conclusion, adherence to IS codal provisions supports the recycling and reuse of waste concrete in India, promoting sustainable practices and contributing to a greener construction industry.