Torsion Testing

Where τ (N.m) is torque, F (N) is the acting force on the system, θ is the angle in which the force acts on the object, and l (m) is the distance of the acting force from the fulcrum. This shows that a larger force will cause a greater rotation than a smaller force does. However, the angle of the force is also important, and if

Hinge The convex surface of one bone fits into the concave surface of another bone, Hinge joint are uniaxial because they allow motion around a single axis. Produces an opening and closing motion.

Introduction During this lab you will become more familiar with the concepts of torque. The purpose of this lab is to determine if the rotational equilibrium condition, Στ = 0, holds experimentally. Equipment Meter stick (1) - no metal ends Fulcrum (1) Clamps (4) Weight Hanger (1) Mass Set (1) Digital Scale (1)

Overall, the 1018 and 1045 steel specimens displayed similar relationships between the heat-treating procedures. The 1045 steel had a greater tensile strength in all states except for the quenched state. In general, the 1018 steel specimens were more ductile than the 1045 steel specimens in all states.

In the most common form of 1-DOF torsional plant, friction is taken as being viscous. Applying Newton's second law to the attached rotating disk using free body diagram method then following up with differential equation and the deducing:

Sample 3 demonstrated characteristics of a high carbon steel. It did not soften during the annealing process, and rapidly hardened with quench media, plateuing in its RCh rating.

Pull each of the 18 welded specimens in tension using the Shimadzu brand tensile testing machine, with the special grips provided (Appendix A), in the order that the welds were performed

During the Thomas test, the patient is lying supine (Face up) on the table, the examiner is standing besides the patient. The examiner places one hand between the Lumbar lordotic curve and the table top. One leg is passively flexed to the patient’s chest, allowing the knee to flex during the movement. The opposite leg which is the one being tested rest flat on the table. If the test is positive for hip flexor tightness, the involved leg rises off the table. The structures being implicated in the test are the Iliopsoas muscles, and tightness of the rectus femoris (Starkey & Brown, 2015).

Aluminium (AL) alloy 6061 is one of the most extensively used of the 6000 series aluminium alloys. Among the various useful aluminium alloys, aluminium alloy 6061 is typically characterized by properties such as fluidity, cast ability, corrosion resistance and high strength-weight ratio. Aluminium-based alloy MMCs has received increasing attention in recent decades as engineering applications. This alloy has been commonly used as a base metal for MMCs reinforced with a variety of fibres, particles and whiskers. Tungsten carbide (WC) is approximately two times stiffer than steel, with a Young's modulus of approximately 550GPa, and is much denser than steel or titanium.

This experiment demonstrated some key differences in material properties of several heat treatments for 4140 steel. Annealing creates a soft and ductile material that is easy to machine and perform other operations on. Quenching creates a very hard and brittle material that has extremely high yield and tensile strengths. Tempering quenched steel softens the steel and provides a tradeoff between the hard and strong quenched steel and the soft annealed steel. Engineers are benefited by an understanding of heat treatment because they are better able to predict how a material will perform when loaded if they know the heat treatment state of that material. Thus the results of this experiment, and others like it available in literature, are very

The use of steel rebars was started in construction in 18th century. Cast iron was used in the earlier age. Cast iron rebars were of high quality, and there was no corrosion. The technique was refined by embedding the steel bars in concrete. Square twisted steel bars (deformed bars) were introduced in 1960s but these were phased out due to their inherent inadequacies. Later the steel rebars of high yield strength were produced by raising carbon (>0.5 and <1.0 wt% content) as well as manganese contents. Carbon was added to steels in order to achieve strength and later on it was realized that higher content of carbon created problem of brittleness and accelerated rate of corrosion (due to the presence of higher proportion of cementite phases

There are two tort actions found in the first scenario. The first tort action is Ruben for pushing Daniel and knocking out two of his teeth. The second tort action is owner of the ball field for poor maintenance and improper weight restriction limits on the railings of the stands. The potential plaintiffs in this case are the injured fan, Malik and Daniel. The stadium owners would be potential defendants in cases brought on by the fan injured from the football, by Malik for the faulty railing, and by Daniel for the diabetic coma (University of Phoenix, 2011). Daniel could be a potential defendant for assaulting Malik after spilling the beer on Daniel’s son. Daniel’s

Experiment Two: Stiffness Report from laboratory work performed on 12 May 2011 as a part of the unit of study CIVL2201 Structural Mechanics

Briefer: Can be use to help track the six month inspection when enrolled in the LUP: A task that is commonly missed

If the load is applied at the mid- length a=b=L/2 then mid span deflection is: