Sairam .K

Questions and Answers (9) View all

• Answer added in Materials Engineering
  13 Do residual stresses in composite materials have a positive or negative influence on their use?
  By Viktor Savitsky · E.O. Paton Electric Welding Institute
  Sairam .K · Bhabha Atomic Research Centre

  there are several factors that contributes for the formation of residual stress in the material; Among them, thermal expansion coefficient difference ... [more]

  there are several factors that contributes for the formation of residual stress in the material; Among them, thermal expansion coefficient difference between the matrix and second phase in the composite material plays a mojor role; based on this & including other factors, the stress formation would be either +/-; for eg, consider a case , a crack is propagating in a compressive stress region, in that case, the stress intensity factor at the crack tip keeps on decreases , which is considered to be beneficial since it decreases the driving force for its further propagation; this may vary between applications to applications........
  Following
• Answer added in Metallurgical Engineering
  10 What are the different methods to calculate the Young's modulus of a material?
  By Anurag Tilak · Aditya Birla Group
  Sairam .K · Bhabha Atomic Research Centre

  Try Resonant Frequency Damping Analyzer; 

  Try Resonant Frequency Damping Analyzer;
  Following
• Answer added in Metallurgical Engineering
  10 What are the different methods to calculate the Young's modulus of a material?
  By Anurag Tilak · Aditya Birla Group
  Sairam .K · Bhabha Atomic Research Centre

  Try ultrasonic pulse echo technique; 

  Try ultrasonic pulse echo technique;
  Following
• Answer added in Materials Engineering
  2 High melting point and low density material!
  By Ram M S · SASTRA University
  Sairam .K · Bhabha Atomic Research Centre

  Mention the detailed material property req. For your application 

  Mention the detailed material property req. For your application
  Following
• Question asked in Composites
  Open Can you recommend a technique for finding the Free-Carbon content in Boron Carbide (B4C)?
  I am looking to determine Free Carbon and Combined Carbon content in Boron Carbide 
  I am looking to determine Free Carbon and Combined Carbon content in Boron Carbide
  By Sairam .K · Bhabha Atomic Research Centre
  Following