Strength of materials

Properties of stainless steel • Corrosion resistant • Good tensile strength • Good low and high temperature service • Appearance • Hygienic • Has a respectable friction coefficient Corrosion resistant Stainless steel has a chromium-rich rust protective oxide thin film on the surface known as a passive layer, in which prevents corrosion by blocking oxygen diffusion to enter the passive layer and spreads rust into the internal material. As seen in Figure 1, stainless steel rather than forming a…

Bond Strength and Stress slip of Lap splice reinforcement with Fiber Reinforced Polymer wrapped and unwrapped concrete beams with the confinement properties. Abstract: This paper describes the experimental results of different researchers to examine the properties and behavior of lap splice reinforcement in a concrete beam. Beam specimens were constructed and tested in the lab. The beam specimen was tested with monotonic (cyclic) and fatigue loading. The beam was divided into three groups:…

HARDNESS Hardness of a material is most commonly defined as the measure of its resistance to penentration by an indenter.Hardness is also measure of strength and often has the units of stress .The indenter is often fabricated from a hard material such as diamond or hardened steel.The tips of the indenters may be conical,pyramidal,or spherical in shape.The indenter tips may also be relatively small(nano-or micro-indenters) or very large(macroindenters).Since indentation tests are relatively easy…

chemistry, Mathematics, Thermodynamics, Heat Transfer, Material science etc., Tribological problem leads to the reason of metal failures than the mechanical problem such as fracture, fatigue and plastic deformation. 1.6.1 Friction Friction is the opposes that the motion (either sliding or rolling) of the object. This oppose force acts against to its motion is called friction force as shown in fig.1.7. The friction is not a property of material, but it is a system response. The ratio of…

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: Ceramics, Metals, and Polymers (un-reinforced) 3) Where is the elastic recovery in the graph below? 4) What is the relation between the yield strength of a material and…

direction of each of its members. That is, the members experience tension or compression forces, but not bending forces. Trusses have a high strength to weight ratio and consequently are used in many structures, from bridges, to roof supports, to space stations.The Pros of a Truss Bridge 1. They might be light, but they are also strong. Truss bridges utilize the materials that are needed to create them very effectively. This makes them very economical to build, but doesn’t compromise on the…

Over the years, the industries of structural, mechanical, aerospace engineering, materials science, medicine, prosthetics, and many more have called for stronger, lightweight, low maintenance materials to withhold the stresses and loads that come with everyday usage of materials. Material scientists and engineers have studied and manufactured composite materials to cater to the needs of these various industries; however, composites have limitations as well. Many composites need repairs after…

1. Introduction “Slums are litmus tests for innate cultural strengths and weaknesses. Those people whose cultures can harbor extensive slum life without decomposing will be, relatively speaking, the future’s winners. Those whose cultures cannot will be the future’s victims.” (Kaplan, 1994) One of the biggest challenges that India has to face today is the augmented urbanisation as a result of the economic liberalisation. Close to 16 crore people have moved to cities in the past 20 years, and…

Engineering with respect to the work that preceded it, and how this research should be developed further in the future.” Nowadays, cellular materials are well-known in the world, however, the relationship between dynamic load and the deformation of the lattice structure is less well-studied. Actually, lattice structures can help engineer to produce macro-scale material properties more easier. The research “Energy absorption in lattice structures in dynamics” was focusing on characterising the…

AC 2.3: Explain the method of making titanium alloy and investigate how the composition and structure of metal alloys, polymers and poly-matrix composites influence the properties of the parent material. 1. Extraction process. 2. Melting process. 3. Storage process. Extraction of Titanium by Kroll process: First titanium ore Rutile (TiO2) is taken. Rutile is converted into titanium sponge by the following process: Titanium tetrachloride (TiCl4) – a colourless compound is obtained as a result…