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  2. Plastic hinge - Wikipedia

    en.wikipedia.org/wiki/Plastic_hinge

    Diagram of a structure featuring plastic hinges. In the structural engineering beam theory, plastic hinge is the deformation of a section of a beam where plastic bending occurs. [1] In earthquake engineering plastic hinge is also a type of energy damping device allowing plastic rotation [deformation] of an otherwise rigid column connection. [2]

  3. Lumped damage mechanics - Wikipedia

    en.wikipedia.org/wiki/Lumped_damage_mechanics

    In reinforced concrete structures, the damage state variable quantifies the crack density in the plastic hinge zone; [1] in unreinforced concrete components and steel beams, it is a dimensionless measure of the crack surface; [2] in tubular steel elements, the damage variable measures the degree of local buckling [3] The LDM evolution laws can ...

  4. Moment redistribution - Wikipedia

    en.wikipedia.org/wiki/Moment_redistribution

    Further increment in load does not increase the moment at the points where the plastic hinges are formed. The increased load increases the moment in the less stressed sections of the beam; hence due to this, further plastic hinges are formed. This process of shift of application of moment in the beam is termed as moment redistribution in a beam ...

  5. Plastic bending - Wikipedia

    en.wikipedia.org/wiki/Plastic_bending

    Plastic Bending Stress Distribution. Plastic bending [1] is a nonlinear behavior particular to members made of ductile materials that frequently achieve much greater ultimate bending strength than indicated by a linear elastic bending analysis. In both the plastic and elastic bending analyses of a straight beam, it is assumed that the strain ...

  6. Concrete hinge - Wikipedia

    en.wikipedia.org/wiki/Concrete_hinge

    Concrete hinges are hinges produced out of concrete, with little or no steel in the hinge neck, which allows a rotation without a significant bending moment. [1] The high rotations [2] [3] result from controlled tensile cracks as well as creep. [4] [3] [1] Concrete hinges are mostly used in bridge engineering [1] as monolithic, simple, economic ...

  7. Plastic moment - Wikipedia

    en.wikipedia.org/wiki/Plastic_Moment

    In structural engineering, the plastic moment (M p) is a property of a structural section. It is defined as the moment at which the entire cross section has reached its yield stress . This is theoretically the maximum bending moment that the section can resist – when this point is reached a plastic hinge is formed and any load beyond this ...

  8. All of these Black Friday deals would make very good gifts - AOL

    www.aol.com/lifestyle/all-of-these-black-friday...

    More than 10,000 reviews on Walmart are obsessed with this stain-fighting tool, too. "After months of my kids trashing my car and spilling smoothies, milk, lemonade, etc., the backseats in my car ...

  9. Influence line - Wikipedia

    en.wikipedia.org/wiki/Influence_line

    Figure 1: (a) This simple supported beam is shown with a unit load placed a distance x from the left end. Its influence lines for four different functions: (b) the reaction at the left support (denoted A), (c) the reaction at the right support (denoted C), (d) one for shear at a point B along the beam, and (e) one for moment also at point B. Figure 2: The change in Bending Moment in a ...