Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Symbol for the gigapascal, an SI unit of pressure and stress equal to 109 pascals.

Etymologies

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Examples

  • The group created the ADNRs by compressing the carbon-60 molecules to 20 GPa, which is nearly 200 times atmospheric pressure, while simultaneously heating to 2500 Kelvin.

    Nano Material Harder than Diamonds | Impact Lab

  • With a theoretical tensile strength of 100 gigapascals GPa which is ten times that required to form diamonds, or just 280 GPa’s less then the pressure at the core of the Earth.

    Archive 2008-02-01

  • James S. Schilling, Ph. D., professor of physics in Arts & Sciences at Washington University in St. Louis, and Mathew Debessai — his doctoral student at the time — discovered that europium becomes superconducting at 1.8 K (-456 °F) and 80 GPa (790,000 atmospheres) of pressure, making it the 53rd known elemental superconductor and the 23rd at high pressure.

    Thor's Day

  • You are correct with the linear mass density figure, but start with a Carbon Nanotube material that has a specific strength of 40 GPa-cc/g, and see how much cable is required to carry a 20 ton climber… you'll be surprised, as I was a few years ago.

    Black Hole Drive Could Power Future Starships | Universe Today

  • I understand that the kg/cm2 unit is now deprecated and that tensile strength is more commonly quoted in GPa (giga pascals) but how many kg/cm2 is equal to a GPa?

    Space Elevator Still At Ground Floor

  • The inherent tensile strength of a single asbestos fiber, based on the strength of Si-O-Si bonds in the silicate chain, should be near 10 gigapascals (GPa) (1.45 x 106 pounds per square inch [psi]).

    Geology of asbestos

  • The measured tensile strength of chrysotile fibers has been reported in the range 1. 1-4.4 GPa (160,000-640,000 psi).

    Geology of asbestos

  • Aggregated diamond nanorods have a modulus of 491 gigapascals GPa, compared with 442 GPa for conventional diamond.

    Nano Material Harder than Diamonds | Impact Lab

  • “The synthesis was possible due to a unique 5000-tonne multianvil press at Bayerisches Geoinstitut in Bayreuth that is capable of reaching pressures of 25 GPa and temperatures of 2700 K at the same time,” Dubrovinskaia told PhysicsWeb.

    Nano Material Harder than Diamonds | Impact Lab

  • A characteristic value of the modulus of elasticity for concrete is 30 GPa.

    3. Technical rationale

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