CHARPY ENERGY IMPACT TEST ON VARIABLE NIGERIAN TIMBER SPECIES SHORT BEAMS.
Published In: 8TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): EZEAGU C.A , JOHN SMALLWOOD
Abstract: This work analyzed the plastic and elastic properties of some Nigerian timber as a structural material. Charpy impact test method was used to determine the impact energy/toughness of twenty locally available timber species, comprising of ten hardwoods and ten softwoods. Three sets of specimen (having dimension 125 mm by 12.5 mm by 12.5 mm)were obtained from each of the timber species.The first set had grain angle parallel to the longitudinal axis of the specimen, the second set had grain perpendicular to the longitudinal axis of the specimen and the third had grain at an angle of 45 degree to the longitudinal axis of the specimen. The toughness energies of the materials were observed to vary as the angle of the grain varied. The toughness energies of the materials were observed to vary as the angle of the grain varied, with the maximum strength obtained when the grain orientation was parallel to the axis of the tree trunk. The toughness energy obtained for the different softwood specie
- Publication Date: 24-Apr-2019
- DOI: 10.15224/978-1-63248-170-2-20
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SIMULATION BASED ANALYSIS OF RESONANT BEHAVIOR OF SPLIT-RING RESONATOR DUE TO FLOWING POLAR LIQUIDS
Published In: 8TH INTERNATIONAL CONFERENCE ON ADVANCES IN COMPUTING, COMMUNICATION AND INFORMATION TECHNOLOGY
Author(s): M. HARIS AMIR , MUHAMMAD NAVEED , TAHIR EJAZ , TAHIR ZAIDI
Abstract: In this research a novel mechanism is being presented which was devised to analyze the effects on resonant behavior of a non-planar split-ring resonator due to flowing polar liquids. Shifts in resonant behaviors have been observed when materials are placed in the gap of a split-ring resonator due to perturbation of electromagnetic fields. However, such study has been organized for materials under static conditions. For such study on liquids, these are contained in micro-capillary tubes and placed in resonator gap. Present work has been organized to perform sensitivity analysis of resonant behavior due to flowing polar liquids through resonator gap. For depicting flowing liquid through a micro-capillary tube, different column lengths of liquids (inside the tube) were placed in resonator gap. Effects of flow, liquid placed at various points, were then analyzed for shifts in the quality factor and resonant frequency of the split-ring resonator. Simulations were organized for dimethyl sulp
- Publication Date: 24-Apr-2019
- DOI: 10.15224/978-1-63248-169-6-01
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