Structural Engineering and Mechanics

  • 제50권2호
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  • Pages.181-199
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  • 2014
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Is it shear locking or mesh refinement problem?

  • Ozdemir, Y.I. (Department of Civil Engineering, Karadeniz Technical University) ;
  • Ayvaz, Y. (Department of Civil Engineering, Karadeniz Technical University)
  • 투고 : 2012.07.05
  • 심사 : 2014.02.25
  • 발행 : 2014.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

Locking phenomenon is a mesh problem and can be staved off with mesh refinement. If the studier is not preferred going to the solution with increasing mesh size or the computer memory can stack over flow than using higher order plate finite element or using integration techniques is a solution for this problem. The purpose of this paper is to show the shear locking phenomenon can be avoided by increase low order finite element mesh size of the plates and to study shear locking-free analysis of thick plates using Mindlin's theory by using higher order displacement shape function and to determine the effects of various parameters such as the thickness/span ratio, mesh size on the linear responses of thick plates subjected to uniformly distributed loads. A computer program using finite element method is coded in C++ to analyze the plates clamped or simply supported along all four edges. In the analysis, 4-, 8- and 17-noded quadrilateral finite elements are used. It is concluded that 17-noded finite element converges to exact results much faster than 8-noded finite element, and that it is better to use 17-noded finite element for shear-locking free analysis of plates.

키워드

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피인용 문헌

  1. Critical Plate Thickness for Energy Dissipation During Sphere–Plate Elastoplastic Impact Involving Flexural Vibrations vol.139, pp.4, 2017, https://doi.org/10.1115/1.4035338
  2. Eigenfrequencies of simply supported taper plates with cut-outs vol.63, pp.1, 2017, https://doi.org/10.12989/sem.2017.63.1.103