Radiation Heat Transfer

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View Factor Orientation (or View factor or shape factor) plays an important role in radiation heat transfer. View factor is defined as, "fraction of radiation leaving surface 'i' and strike 'j' ". Summation Rule (View Factor) If there is are similar surfaces 'i' and 'j' , then: Blackbody Radiation Exchange Radiation Exchange between Opaque, Diffuse, Gray surfaces in an Enclosure 1. Opaque 2. Surfaces 3. Two surface enclosure Radiation Shield It is used to protect surfaces from radiation act like a reflective surface. References: Material from Class Lectures + Book named Fundamentals of Heat and Mass Transfer by Theodore L. Bergman + My knowledge.  Photoshoped pics  are developed.  Some pics and GIF from Google.   Videos from YouTube ( Engineering Sights ).
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Statically Indeterminate Beams

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Statically Indeterminate Beams

It is defined as, "a beam subjected to transverse loads with more than two reaction components because the equilibrium equations are not sufficient to determine all the reactions".
  • For the determinacy of coplanar 2D beam (n = no. of parts, r = no. of reactions) 

Deflection of Beams

Beams are designed on evaluation of Shear Force and Bending Moment distributions to calculate stresses and deformation. 
  • Most of the beams in real world  →  Statically Indeterminate.
Methods to analyze SIB is:
  • Double Integration Method
  • Superposition
  • Graphical Method (Moment Area)
  • Energy Method (versatile and apply on every condition)
Beams depends on the:
  1. Stiffness of the material
  2. Cross-sectional dimensions of the beam
  3. Configuration of the applied loads 
  4. Supports

Double Integration Method

Energy Method

References:

  • Material from Class Lectures + Book named Engineering Mechanics of Materials by R.C. Hibbeler (6/9th Edition) + my knowledge. 
  • Pics and GIF from Google Images.  
  • Videos from YouTube (Engineering Sights).

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