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Failure

FAILURE The failure of engineering materials is almost always an undesirable event for several  reasons; these include human lives that are put in jeopardy, economic losses, and the interference  with the availability of products and services. Even though the causes of failure  and the behavior of materials may be known, prevention of failures is difficult to  guarantee. The usual causes are improper materials selection and processing and inadequate  design of the component or its misuse. It is the responsibility of the engineer  to anticipate and plan for possible failure and, in the event that failure does occur, to  assess its cause and then take appropriate preventive measures against future incidents. There are basically three kinds of material Failure.  Fatigue  Creep Fracture An oil tanker that fractured in a brittle manner by crack propagation around its girth. FRACTURE Fundamentals of fracture ...
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Wire Drawing

Introduction In drawing, the cross section of a long rod or wire is reduced or changed by pulling (hence the term drawing) it through a die called a draw die (Fig. 7.1). Thus, the difference between drawing and extrusion is that in extrusion the material is pushed through a die, whereas in drawing it is pulled through it. Although the presence of tensile stresses is obvious in drawing, compression also plays a significant role because the metal is squeezed down as it passes through the die opening. For this reason, the deformation that occurs in drawing is sometimes referred to as indirect compression. Drawing is a term also used in sheet metalworking. The term wire and bar drawing is used to distinguish the drawing process discussed here from the sheet metal process of the same name. Rod and wire products cover a very wide range of applications, including shafts for power transmission, machine and structural components, blanks for bolts and rivets, electrical wiring, cables,.....
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What is Mechanical Engineering ?

Mechanical engineering is a branch of engineering which deals with problems solving technique of engineering form design to manufacturing to the marketplace for any object using the application of principles. Mechanical engineers analyze the problems using the principles of motion , energy and forces - ensuring that designs functions safely, efficiently and reliably all at competitive cost. They create technology according to human needs. Being ingrained in many challenges and innovations across many fields means a mechanical engineering education versatile. Almost every product or service in modern life has probably been touched in some way by a mechanical engineer. This includes solving today's problems and creating future solution's in health care,energy,automobile,space exploration and many more the list is endless. What can Mechanical engineers do? Mechanical engineer can combine knowledge,innovation,creativity and analytical tools to complete the difficult ta...
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