materials

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Latest blogosphere posts tagged “materials”

 

• NVIDIA and 4 Tech Stocks Energizing Investors After Earnings

  
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  Ubiquiti Networks Inc ( NASDAQ:UBNT ) delivered a profit and beat Wall Street’s expectations, AND beat the revenue expectation. Adjusted Earnings Per Share decreased 20% to $0.24 in the quarter versus EPS of $0.30 in the year-earlier quarter. Revenue Decreased 9.29% to $83.15 million from the year-earlier quarter. ...
  5 days ago

• What You Say May Not Matter Anyway!

  
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  “What you do speaks so loud, that I cannot hear what you say.” –Ralph Waldo Emerson In today’s environment, Emerson’s words might be interpreted this way: The behavioral algorithms are so good it may not matter what your profile or social resume says about you––your behavior trumps everything! ...
  5 days ago

• How To Choose The Right Paving Materials For Your Garden

  
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  Believe it or not the type of paving you choose for your garden could be the single more important decision you make when it comes to your outdoor space. Think about it, choosing pretty plants is nice, and we all like to relax on a comfortable deck chair, but you’ll......
  5 days ago

• Concept of Shear Force and Bending moment in beams

  
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  Concept of Shear Force and Bending moment in beams: When the beam is loaded in some arbitrarily manner, the internal forces and moments are developed and the terms shear force and bending moments come into pictures which are helpful to analyze the beams further. Let us define these terms Fig 1 Now let us ...
  6 days ago

• Members Subjected to Flexural Loads

  
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  Members Subjected to Flexural Loads Introduction: In many engineering structures members are required to resist forces that are applied laterally or transversely to their axes. These type of members are termed as beam. There are various ways to define the beams such as Definition I:  A beam is a laterally ...
  6 days ago

• Closed Coiled helical springs subjected to axial loads

  
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  Closed Coiled helical springs subjected to axial loads Definition:  A spring may be defined as an elastic member whose primary function is to deflect or distort under the action of applied load; it recovers its original shape when load is released. or Springs are energy absorbing units whose function ...
  6 days ago

• Distribution of shear stresses in circular Shafts subjected to torsion

  
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  Distribution of shear stresses in circular Shafts subjected to torsion : The simple torsion equation is written as This states that the shearing stress varies directly as the distance ‘r from the axis of the shaft and the following is the stress distribution in the plane of cross section and also the ...
  6 days ago

• Members Subjected to Torsional Loads

  
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  Members Subjected to Torsional Loads Torsion of circular shafts Definition of Torsion:  Consider a shaft rigidly clamped at one end and twisted at the other end by a torque T = F.d applied in a plane perpendicular to the axis of the bar such a shaft is said to be in torsion. Effects of Torsion:  The ...
  6 days ago

• Cylindrical Vessel with Hemispherical Ends

  
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  Cylindrical Vessel with Hemispherical Ends: Let us now consider the vessel with hemispherical ends. The wall thickness of the cylindrical and hemispherical portion is different. While the internal diameter of both the portions is assumed to be equal Let the cylindrical vassal is subjected to an internal pressure p. ...
  6 days ago

• Volumetric Strain

  
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  Change in Dimensions : The change in length of the cylinder may be determined from the longitudinal strain. Since whenever the cylinder will elongate in axial direction or longitudinal direction, this will also get decreased in diametre or the lateral strain will also take place. Therefore we will have to also ...
  6 days ago

• Members Subjected to Axisymmetric Loads

  
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  Members Subjected to Axisymmetric Loads Pressurized thin walled cylinder: Preamble :  Pressure vessels are exceedingly important in industry. Normally two types of pressure vessel are used in common practice such as cylindrical pressure vessel and spherical pressure vessel. In the analysis of this walled ...
  6 days ago

• Thermal stresses, Bars subjected to tension and Compression

  
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  Thermal stresses, Bars subjected to tension and Compression Compound bar:  In certain application it is necessary to use a combination of elements or bars made from different materials, each material performing a different function. In over head electric cables or Transmission Lines for example it is often ...
  6 days ago

• Stresses and its types

  
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  INTRODUCTION AND REVIEW Preamble Engineering science is usually subdivided into number of topics such as 1.  Solid Mechanics 2.  Fluid Mechanics 3.  Heat Transfer 4.  Properties of materials and soon Although there are close links between them in terms of the physical principles involved and methods of ...
  6 days ago

• ANALYSIS OF STERSSES (Part 1st)

  
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  ANALYSIS OF STERSSES General State of stress at a point : Stress at a point in a material body has been defined as a force per unit area. But this definition is some what ambiguous since it depends upon what area we consider at that point. Let us, consider a point ‘q in the interior of the body Let us pass ...
  6 days ago

• Analysis of Stresses

  
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  Analysis of Stresses: Consider a point ‘q in some sort of structural member like as shown in figure below. Assuming that at point exist. ‘q a plane state of stress exist. i.e. the state of state stress is to describe by a parameters  s x ,  s y  and  t xy  These stresses could be indicate a on the ...
  6 days ago

• Material subjected to combined direct and shear stresses

  
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  Material subjected to combined direct and shear stresses: Now consider a complex stress system shown below, acting on an element of material. The stresses  s x  and  s y  may be compressive or tensile and may be the result of direct forces or as a result of bending.The shear stresses may be as shown or ...
  6 days ago

• GRAPHICAL SOLUTION for stresses – MOHRS STRESS CIRCLE

  
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  GRAPHICAL SOLUTION – MOHRS STRESS CIRCLE The transformation equations for plane stress can be represented in a graphical form known as Mohrs circle. This grapical representation is very useful in depending the relationships between normal and shear stresses acting on any inclined plane at a point in a stresses ...
  6 days ago

• Solved Problems using Mohrs Circle

  
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  ILLUSRATIVE PROBLEMS: Let us discuss few representative problems dealing with complex state of stress to be solved either analytically or graphically. PROB 1:  A circular bar 40 mm diameter carries an axial tensile load of 105 kN. What is the Value of shear stress on the planes on which the normal stress has a ...
  6 days ago

• Analysis of Strains and Hookes Law

  
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  ANALYSIS OF STRAINS CONCEPT OF STRAIN Concept of strain :  if a bar is subjected to a direct load, and hence a stress the bar will change in length. If the bar has an original length L and changes by an amount  d L, the strain produce is defined as follows: Strain is thus, a measure of the deformation of ...
  6 days ago

• Navigating the Hazards of an Industrial Age

  
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  By John F. Di Leo - On May 11, 1996, 105 passengers boarded a ValuJet flight in Miami, bound for Atlanta. They never made it. Shortly after takeoff, a small explosion in the airtight cargo hold developed into a fire,...
  6 days ago

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