Specific strength

1.1 What is a composite material? Composite materials are materials in which a homogenous matrix is reinforced by a stronger and stiffer constituent that is usually fibrous but may have a particulate or other shape (web.mit.edu). They are produced when two or more materials or phases are used together to give a combination of properties that cannot be attained otherwise. For example steel reinforced concrete, plywood and fibre glass. 1.2 What is a Ceramic Matrix Composite (CMC)? CMCs are a…

2.9 Material Properties 2.9.1 Hardness Test Hardness is defined as a measure of a material’s resistance to contained plastic deformation (e.g., a small dent or scratch). Hardness testing comprises a small indenter being enforced into the surface of the material being confirmed under organized circumstances of load and rate of application. The depth or size of the resulting indentation is measured, which in turn is linked to a hardness number; weaker the material, indentation will be the…

Experimental Analysis The experimental work is carried out to evaluate the shear strength of steel fiber reinforced concrete deep beams without stirrups. For this 18 beams are cast. The beams are tested under two-point loading as per IS after 28 days curing. Fiber fraction is varied as 0%, 1.5% and 3%. The shear span-to-depth ratio (a/d ratio) for beams is kept as 0.60 for case-I and 0.74 for case-II. The cube compressive strength is estimated. The experimental results are compared with…

According to cerakoteguncoatings.com (2017), Cerakote is a Polymer-Ceramic coating that can be applied to metals, plastics, polymers and wood. Cerakote is used on; knives, weapons, tools, some electronic covers, glasses and anything durable that needs a tough coating. This ceramic thin-film coating is intended to offer an appealing finish with unequaled performance. The ceramic coating of Cerakote provides the advantage of having extraordinary; adhesiveness, pliability, corrosion and wear…

Callaway Steelhead XR Irons: There are motor-heads. There are rock-heads. And then, there is steelhead. Steelhead XR irons are the latest offering from Callaway. Allow starting the section by qualifying the aforementioned statement. The steelheads irons are the foremost flagship offering of the Callaway. Golf aficionados’ would agree that golfing, steelhead and Callaway are almost synonymous. In the past, Callaway offered many series in the flagship starting from X-14 through X-22. However, the…

Weight Belt Important for Bodybuilders: Weight belts are an important piece of equipment in your training repertoire. Find out how and why to use them! Most people think that weight belts support the back and can help prevent injury. That's generally true, but a better understanding of the mechanics will change how many people use their equipment. Even some weight belt manufacturers don't understand how a belt is supposed to work, which is revealed when they make the back of the belt wider…

There are many reasons why people choose to wear weighted clothing and the most important ones include the fact that it helps building strength, toning muscles, building bone mass, and so on. But what exactly is the weighted clothing? Well, in simple words, the weighted clothing is clothing with built-in weights added to different parts of the body in order to increase the intensity during a resistance training. Moreover, the weighting clothing is adjustable for the user and comes in a wide…

The polyurethane segments show high intersegment attraction such as hydrogen bonding and may be able to crystallize and form hard segments. In such polymers hard segments with Tg well above normal ambient temperature are separated by polyol soft segments, which in the mass are rubbery in nature. Hard and soft segments are arranged alternate along the polymer chain. Fig.7. Polyurethane chain configuration [32] 4.2.2. Polyurethane properties and advantages for product development…

Even if it's not the season for outdoor walking in your area, there are places you can walk to stay healthy. The local gym is one choice, of course, but you can also get creative with your walking workouts. Years ago, there were tapes where women would walk in place in the comfort of their own home. There's a tendency to throw on a pair of ratty old sneakers if you aren't going outside, but that would be a mistake. You need cushioning and support in your walking shoe. You can also walk at…

The yo-yo test according to (Top end sports, 2016), is similar to beep test, except in the yoyo intermittent test the subject have a short active rest for recovery, five (5) to six (10) seconds. There are two levels of yoyo test. Level 1 for untrained/ less trained individuals and level 2 for elite athletes. Level 1 yoyo test starts at 10 km/hr while the level 2 starts at 13 km/hr. The purpose of this test is to evaluate the athlete's or the individual's ability to endure interval runs over a…