• The J-integral represents a way to calculate the strain energy release rate, or work (energy) per unit fracture surface area, in a material. The theoretical...
    18 KB (1,969 words) - 23:48, 31 July 2024
  • Thumbnail for Integral
    In mathematics, an integral is the continuous analog of a sum, which is used to calculate areas, volumes, and their generalizations. Integration, the process...
    69 KB (9,283 words) - 04:47, 31 December 2024
  • calculated using the J-integral, i.e. G = J {\displaystyle G=J} , using J = ∫ Γ ( W n 1 − t i ∂ u i ∂ x 1 ) d Γ , {\displaystyle J=\int _{\Gamma }\left(Wn_{1}-t_{i}\...
    39 KB (5,612 words) - 15:59, 14 November 2024
  • Thumbnail for Integralism
    In politics, integralism, integrationism or integrism (French: intégrisme) is an interpretation of Catholic social teaching that argues the principle...
    30 KB (3,145 words) - 01:32, 3 December 2024
  • Thumbnail for Gaussian integral
    The Gaussian integral, also known as the Euler–Poisson integral, is the integral of the Gaussian function f ( x ) = e − x 2 {\displaystyle f(x)=e^{-x^{2}}}...
    20 KB (4,300 words) - 04:56, 19 October 2024
  • Thumbnail for Fracture mechanics
    elastic-plastic fracture mechanics can be used with parameters such as the J-integral or the crack tip opening displacement. The characterising parameter describes...
    40 KB (5,897 words) - 03:12, 5 November 2024
  • Henstock–Kurzweil integral or generalized Riemann integral or gauge integral – also known as the (narrow) Denjoy integral (pronounced [dɑ̃ʒwa]), Luzin integral or Perron...
    18 KB (2,872 words) - 19:10, 29 September 2024
  • Thumbnail for Riemann integral
    as real analysis, the Riemann integral, created by Bernhard Riemann, was the first rigorous definition of the integral of a function on an interval. It...
    42 KB (5,473 words) - 14:34, 16 December 2024
  • Thumbnail for Itô calculus
    Itô calculus (redirect from Itô integral)
    central concept is the Itô stochastic integral, a stochastic generalization of the Riemann–Stieltjes integral in analysis. The integrands and the integrators...
    30 KB (4,486 words) - 16:45, 26 November 2024
  • Integral theory as developed by Ken Wilber is a synthetic metatheory aiming to unify a broad spectrum of Western theories and models and Eastern meditative...
    74 KB (7,420 words) - 05:18, 25 November 2024
  • Thumbnail for Path integral formulation
    The path integral formulation is a description in quantum mechanics that generalizes the stationary action principle of classical mechanics. It replaces...
    86 KB (14,278 words) - 03:27, 4 December 2024
  • mathematics, integral equations are equations in which an unknown function appears under an integral sign. In mathematical notation, integral equations may...
    32 KB (5,600 words) - 03:13, 24 December 2024
  • Thumbnail for INTEGRAL
    The INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) is a space telescope for observing gamma rays of energies up to 8 MeV. It was launched by...
    19 KB (1,894 words) - 16:08, 22 November 2024
  • Integration is the basic operation in integral calculus. While differentiation has straightforward rules by which the derivative of a complicated function...
    29 KB (5,611 words) - 21:09, 30 January 2024
  • Thumbnail for Exponential integral
    mathematics, the exponential integral Ei is a special function on the complex plane. It is defined as one particular definite integral of the ratio between an...
    18 KB (2,995 words) - 07:42, 24 September 2024
  • Thumbnail for Fresnel integral
    The Fresnel integrals S(x) and C(x) are two transcendental functions named after Augustin-Jean Fresnel that are used in optics and are closely related...
    22 KB (2,715 words) - 11:32, 12 November 2024
  • mathematics, an integral domain is a nonzero commutative ring in which the product of any two nonzero elements is nonzero. Integral domains are generalizations...
    20 KB (3,124 words) - 12:49, 4 October 2024
  • the J-integral for plane stress and plane strain in Mode I are the same: J = μ π a 2 4 . {\displaystyle J={\frac {\mu \pi a^{2}}{4}}.} The J-integral can...
    14 KB (2,415 words) - 16:30, 4 October 2024
  • Thumbnail for Crack tip opening displacement
    the stress intensity factor K {\displaystyle K} and the elastic-plastic J-integral. For plane stress conditions, the CTOD can be written as: δ t = ( 8 σ...
    7 KB (1,140 words) - 18:49, 7 October 2024
  • Thumbnail for Lebesgue integral
    In mathematics, the integral of a non-negative function of a single variable can be regarded, in the simplest case, as the area between the graph of that...
    41 KB (5,888 words) - 12:44, 23 December 2024
  • In mathematics, an abelian integral, named after the Norwegian mathematician Niels Henrik Abel, is an integral in the complex plane of the form ∫ z 0...
    6 KB (848 words) - 21:37, 15 March 2022
  • In integral calculus, an elliptic integral is one of a number of related functions defined as the value of certain integrals, which were first studied...
    40 KB (7,832 words) - 21:38, 15 October 2024
  • In mathematics, an integral transform is a type of transform that maps a function from its original function space into another function space via integration...
    13 KB (1,278 words) - 17:01, 18 November 2024
  • Thumbnail for Trigonometric integral
    mathematics, trigonometric integrals are a family of nonelementary integrals involving trigonometric functions. The different sine integral definitions are Si...
    17 KB (3,230 words) - 23:53, 28 December 2024
  • said to be integral over a subring A of B if b is a root of some monic polynomial over A. If A, B are fields, then the notions of "integral over" and of...
    32 KB (5,304 words) - 00:33, 29 November 2024
  • Thumbnail for Logarithmic integral function
    In mathematics, the logarithmic integral function or integral logarithm li(x) is a special function. It is relevant in problems of physics and has number...
    6 KB (1,104 words) - 21:51, 7 August 2024
  • Riemann–Stieltjes integral is a generalization of the Riemann integral, named after Bernhard Riemann and Thomas Joannes Stieltjes. The definition of this integral was...
    19 KB (2,825 words) - 15:35, 4 November 2024
  • Thumbnail for Polylogarithm
    closed form of integrals of the Fermi–Dirac distribution and the Bose–Einstein distribution, and is also known as the Fermi–Dirac integral or the Bose–Einstein...
    60 KB (10,165 words) - 14:52, 17 June 2024
  • In mathematics, the Fredholm integral equation is an integral equation whose solution gives rise to Fredholm theory, the study of Fredholm kernels and...
    8 KB (1,048 words) - 18:22, 12 December 2024
  • Thumbnail for Integral membrane protein
    An integral, or intrinsic, membrane protein (IMP) is a type of membrane protein that is permanently attached to the biological membrane. All transmembrane...
    11 KB (1,138 words) - 13:09, 9 December 2024