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Polymer Mechanics

, Volume 3, Issue 5, pp 586–589 | Cite as

Bending of prestressed glass-reinforced plastic beams

  • I. G. Zhigun
Article
  • 47 Downloads

Abstract

Initial waviness of the fibers and prestressing are investigated in relation to their effect on flexural stiffness and strength for beams with low shear strength. It is shown that prestressing the reinforcement increases the flexural stiffness but at the same time adds to the shear correction as a result of an increase in the modulus of elasticity Ex in the direction of reinforcement and the insensitivity of the shear modulus Gxz to prestress. It is established that prestressing increases the shear strength and the degree of anisotropy β. Materials of two types are investigated: unidirectional (AG-4S) and cloth-reinforced (SKT-11).

Keywords

Anisotropy Shear Strength Shear Modulus Flexural Stiffness Plastic Beam 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Consultants Bureau 1971

Authors and Affiliations

  • I. G. Zhigun
    • 1
  1. 1.Institute of Polymer Mechanics AS LatvSSRRiga

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