Welcome on piarc.org!

PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

This site uses cookies to optimize its operation. They allow you to securely access your personal space and download our publications. You accept their use by clicking on the "Accept" button.

Your basket
  1. Home
  2. Our activities
  3. Road Dictionary
  4. Term of the Dictionary | rigidity modulus

Term of the Road Dictionary

rigidity modulus

  • Language : PIARC Road Dictionary / English
  • Theme : Scientific and Technical Tools Physics and Chemistry
  • Definition : Value representing the resistance offered by an elastic body to shearing. Note: given an elastic body with thickness L and surface area S, which when submitted to a force T in the plane of surface S has a deformation ΔL in the plane of that surface, in the direction of the force. The rigidity modulus is: G = T/S x L/ΔL (unit: Pa).
  • Synonyms : stiffness modulus

Steifigkeitsmodul

  • Language : PIARC Road Dictionary / German
  • Theme : Wissenschaftliche und technische Arbeitsmittel Physik und Chemie
  • Definition : Wert, der den Schubwiderstand eines elastischen Körpers beschreibt. Annahme: Ein elastischer Körper mit der Dicke L und der Oberfläche S erfährt eine Verformung ΔL in der Ebene dieser Oberfläche, wenn die Kraft T darauf wirkt. Der Steifigkeitsmodul ergibt sich dann zu: G = T/S x L/ ΔL (Einheit Pa).