giganewtonとは 意味・読み方・使い方

名詞

giganewton (複数形 giganewtons)

1. (metrology) An SI unit of force equal to 10⁹ newtons. Symbol: GN
   • 1976, Smith, Robert J., Changes in boron fiber strength due to surface removal by chemical etching, NASA:

     For example, the as-received 203-micrometer (7.98-mil) fibers had an average tensile strength of 3.59 giganewtons per square meter (521 ksi) with a coefficient of variation of 23.5 percent.

   • 1997, Sewell, Michael J., Mathematics Masterclasses: Stretching the Imagination, Oxford University Press, →ISBN, page 172:

     The following values have been calculated for femurs, in units of square metres per giganewton, where 1 giganewton = 10⁹ newtons, and with body mass given in tonnes, where 1 tonne = 10³ kilograms.

   • 1998 August 3, Powell, P. C.; Ingen Housz, A. J., Engineering with Polymers, 2nd edition, →ISBN, page 9:

     If the fibres are all aligned in one direction, it is quite easy to achieve a modulus of 50 GN/m² and a tensile strength of 600 MN/m², although the shear modulus is at best only a few giganewtons per square metre.

   • 2002 January 21, Walter Meissl, “Re: More Venus Terraforming Ideas”, in sci.space.science, Usenet, message-ID <a2hkig$k0b$1@news.tuwien.ac.at>:

     what does a giganewton do to an asteroid in the order of magnitude say 1/100 of a planet (otherwise it would have no impact at the planet).

   • 2003 June 30, Anusavice, Kenneth J., Phillips' Science of Dental Materials, Elsevier Health Sciences, →ISBN, page 82:

     Modulus of elasticity is given in units of force per unit area, typically giganewtons per square meter (GN/m²), or gigapascals (GPa).

   • 2005 December 31, Autymn D. C., “Scientists and Engineers: Make a beginner's flying saucer, better than the Avrocar or Lifter”, in sci.physics, Usenet, message-ID <1136050698.560388.57590@g14g2000cwa.googlegroups.com>:

     I found "Electrostatic Levitation" < […] > inspiring. However, under standard sunheat and ionization, the +.1 C/kg (It should be positive, not negative, as of course the sun boils electrons off the ground かつ air making them positive.) fee would strain a Static Shock-sizely pad with at least a giganewton.