Tensile strength

studied by means of slump test, V-funnel test, L box test etc. The properties of hardened concrete were investigated by assessing the compressive strength and split tensile strength. Lastly the optimum dosage of steel fibers was suggested. Keywords— SCC, V-Funnel- L- Box, Steel fibers. I. INTRODUCTION Now a day, civil engineering structures require high strength and high durability concrete for construction, but at the same time concrete should be economical. This requirement leads to the development

The tensile testing was done on the three composite specimens (90°, and two 45°) were completed with a servo-hydraulic load frame with a wedge. The one in the lab was the MTS 647 hydraulic wedge grip and an 810 material test system. The specimens had strain gages with a Wheatstone bridge to collect data such as time, distance, load, axial strain, and transverse strain. From the strain gages, evidence can support how and when the specimen material failed under the stress being applied to it. The test

LITEREATURE REVIEW OVERVIEW OF A RISER SYSTEM Conventionally a riser system as part of an offshore drilling or production system, is basically conductor pipes connecting topside structures on the sea surface (an oil and gas floating, production and storage facility or a drilling production structure) and subsea structures on the seabed. (Bai and Bai). Marine risers have been in existence from the early 1950s, they were used to drill from barges offshore of California, United States. An important

other hand, carbon black is not easily biodegradable. Carbon black is expensive compared to other material. There are reasons why natural rubber was chosen to make part of tyres. The first reason is natural rubber has high tensile strength. Because of this high tensile strength natural rubber can hold shape and is more flexible. Second, natural rubber is more environmental friendly compared to synthetic rubber. This is because it is originally derived from latex which produced from tree. Besides,

Experiments include tensile test, Charpy impact test and Shore hardness test. Introduction Polypropylene is a thermoplastic used in applications such as packaging, automobile parts, carpeting, and a lot more application where it involves shearing movements. There are three types of polypropylene: homo polymer, block copolymer and random copolymer. In this case, random copolymer polypropylene is used as it can be used for injection molding and application that needs high impact strength. Polypropylene

In addition, it provides students with experience analyzing tensile and bending failures of composites. Three tensile specimens and two bend test specimens were tested during this lab. The tensile specimens were a wet lay-up of bi-directional E-glass, and the bend specimens were made up of a nomex honeycomb core with pre-preg uni-carbon faces. The three tensile specimens were tested, their elastic modulus and ultimate tensile strength calculated, and these value were compared to published approximately

3 Results And Discussion 3.1 Wear Test Figure 4 shows the results of loss in weight for the samples as a function with the applied load. It has been found that the wear behavior of unreinforced alloy is higher compared with the composites. This behavior back to the hard ceramic material protects the surface from the severe contact [30–32]. The results given in figure 5 show that the weight loss decreases as the percentage of the nano SiC particles increases from 0.5% to 4.5%. This could be occurred

2. Usually stronger than the matrix, therefore it is sometimes called reinforcing phase. Composites as engineering materials normally refer to the material with the following characteristics: 1. These are artificially made (thus, excluding natural material such as wood). 2. These consist of at least two different species with a well-defined interface. 3. Their properties are influenced by the volume percentage of ingredients. 4. These have at least one property not possessed

mechanical property of polymeric materials which was the tensile properties .The testing standard to adopt for the tensile testing was ASTM D638. Four different types of polymers were placed into the tensile testing machine. The different specimens would then be stretched till it breaks. The tensile testing machine would give the information on the force that was required to stretch the different specimens until it breaks. The average reading of Tensile modulus of all four specimens

Griffith criterion, tensile strength of brittle materials is theoretical 1/8 of the compressive strength. Typically, tensile strength of rock materials is about 1/10 to 1/8 of the compressive strength. Hence, rock fails easily under tension. In design, rock should be subjected to minimum tensile stress. Several methods are commonly used to test the tensile strength of rocks: 1. Direct tensile test: Metal caps are cemented to the end-surfaces of the samples so that tensile load can be applied