Shear stress

1.1. Mechanical properties of CP/CNF and CP/CNF/ZIF-67 1.1.1. Stress–strain curves The stress–strain curves and the effects of CNF dosage on the tensile strength, elastic modulus, and elongation at break of CP/CNF and CP/CNF/ZIF-67 are shown in Fig. 3 and Tables S1–S4. As shown in Fig. 3(A) and Table S1, the tensile strength, elastic modulus, and elongation at break of neat CP is 7.37 MPa, 996 MPa, and 3.07%, respectively. After coating and crosslinking with CNFs, the mechanical properties of…

Vertical dimension (VD) defined in the Glossary of Prosthodontic Terms as "The distance between two selected anatomic or marked points”. Occlusal vertical dimension (OVD) defined as "The distance between two selected anatomic points when in maximal inter-cuspal position”.(1) The OVD is determined by the repetitive contracted length of the elevator muscles which sets the jaw-to-jaw relationship.(2) During growth and development OVD affected by three factors: Growth of the ramus, gonial angle of…

CHAPTER 5 EXPERIMENTATION 5.1 Spur gear terms and concept Fig. 5.1 Terminology definitions for spur gears The radial distance from the pitch circle to the outside diameter is called as addendum. The radial distance between the pitch circle and the root diameter is called as dedendum. The distance of the arc along the pitch circle from one side of a gear tooth to the other is called as circular thickness. The length of the arc of the pitch circle from one point on a tooth to the same…

The idea of this investigation came from curiosity that I had ever since I was younger. I questioned why honey had a slower flow than water. This is a liquid’s resistance to flow and that is otherwise known as viscosity. This a concept that people would call thickness of a liquid. It makes sense that the thicker the liquid the viscosity would be greater. Viscosity describes the friction of a moving liquid. A liquid with high viscosity resists motion due to the fact its molecular composition…

Objectives With the use of similar apparatus equipment through constant temperature at atmospheric pressure, the viscosity will be determined by tests in two different fluids in sets of two ball trials; along with data collected from a third set. By reducing errors and obstructions it will justify data for better discuss and calculated results, supporting the theory beyond the lab report to resonate in helping others comprehend the experiment. Procedure The experiment was…

1) What are engineering stress and strain? Answer: Engineering Stress: Engineering stress is also called nominal stress, and it is defined as the applied load divided by the original cross sectional area of the material. Engineering Strain: Engineering strain is defined as the amount of material that deforms per unit length in a tensile test. Engineering strain is also known as nominal strain. 2) In the figure below, graphically show the toughness of three class materials:…

Many of things that we interact with are solids and liquids. However, there are some things that are combination of both called a Non-Newtonian Liquid, an example of this is oobleck. This substance has the qualities of a liquid but also has the qualities of a solid when under pressure. One of its qualities as a liquid is its ability to flow, known as viscosity. In this experiment will change the oobleck’s viscosity by changing its thickness. Additionally, applying any pressure to oobleck helps…

Principal Stress theory (M.P.S.T) According to M.P.S.T Condition for failure is, Maximum principal stress (1) failure stresses (Syt or Sut) And Factor of safety (F.O.S) = 1 If σ1 is +ve then Syt or Sut σ1 is –ve then Syc or Suc Condition for safe design, Factor of safety (F.O.S) > 1 Maximum principal stress (1) ≤ Permissible stress (per) Where permissible stress = Failure stress Factor of safety = Syt/N or Sut/N σ1≤ Syt/N or Sut/N------------------------Eq. (1) 2. Maximum Shear Stress…

Case Analysis 1. What are the facts in the case? John is the chief seismologist at one of the leading research facilities in North America who holds a P.H.D from one of the most prestigious university in the country. John has developed a method for predicting earthquake with 80% accuracy rate. From his investigation, he discovered that there is a 80% chance that an earthquake will occur with a magnitude of 7.3 in one of the four fault lines in southern california within two days. While three…

Is the Hayward Fault line moving the earth’s surface, and if so where is the evidence to prove it? There are various methods to prove that the Hayward Fault is creeping, and the evidence is viewable such as offset curbsides, building that are being torn apart, and cracks in the earth’s surface. The Hayward Fault is a strike-slip fault meaning it moves up, and down, thus giving us multiple locations in which the surface is affected. There are five different locations that I chose on the Hayward…