Products Directory   |    Rubber Trade   |    Classifieds   |    E-Rubber Shop   |    E-Rubber Newsletter   |    Rubber Jobs   |    Home

IRD Services   |    Join Free   |    Add Your Company   |    Premium Membership   |    Advertise With Us   |    Discussion Forum

   Quick Products:   Adhesives, Auto & Cycle Parts, Rubber Beltings, More...
  Welcome Guest Login
   Forgot Password | Join Free 19 May,2022

Ask Rubber Experts   |   Rubber News   |    Rubber Prices   |    IRD Network Member      Rubber Events > Rubber Engineering > Elastromer Properties

Elastomer Properties - Bulk Modulus/Resiliency

Elastomers are often treated as incompressible materials for analytical convience. However, in many instances the compressive response of elastomers is very important.

Bulk or Static Modulus. The bulk modulus is a property of a material which defines its resistance to volume change when compressed. It can be expressed as:

K = p/ev

Here p is the hydrostatic pressure, ev is the volumetric strain and K is the bulk modulus. In practice, a positive volumetric strain is defined as a decrease in volume.

Measuring a material’s strain response to an applied pressure is a simple test for bulk modulus. The bulk modulus can be expressed as the derivative (slope) of the pressure-strain curve.

Relationships between Young’s modulus E, the shear modulus G, and Poisson’s ratio v are related by:

  • E = 3 K (1 – 2v)
  • E = 2 G (1 + v)

Test Methods:

  • ISO 7743
  • ASTM D575

Rebound Resilience. When a pendulum hammer impacts a rubber specimen from a certain distance or angle, the degree or distance that the pendulum does not return is an indication of the energy lost during the deformation.

Test Methods:

  • ISO 4662
  • ASTM D1054, D2632



  Rubber Engineering

Rubber Product Manufacturers

Get listed in IRD
Premium listing in IRD







New Page 1

    Rubber Articles
   Technical Papers
   Press Releases
   Rubber Articles
   Rubber Statistics

Contact Us : C/o Team Web Power, No.52, First Floor, Anna Nagar Plaza, C-47, IInd Avenue,
Anna Nagar, Chennai 600040. India. 
Phone:- +91-44-42170137 Mobile:- +91-9444001705

|    About Us    |    Vision    |    Disclaimer    |    Privacy Policy     | Sitemap     |    Feedback    |    Contact Us    |    Home    |

Contact Us : , No.52, First Floor, Anna Nagar Plaza, C-47, IInd Avenue, Anna Nagar, Chennai 600040.Tamilnadu, India.

Phone: +91-44-42170137  Mobile: +91-9444001705  Email: