Interpolation , selection of interpolation functions ,CST element , isoparametric, subparametric and superparametric elements, isoparametric formulation , Gauss-quadrature

1. ME 308:COMPUTER AIDED
DESIGN AND ANALYSIS
ASWATHY V G
MODULE 6

9. TRIANGULAR ELEMENTS
Nodal displacements of the element represents the displacements at points inside an element. Generally triangular elements are
classified into two types
 Constant Strain Triangular Element (CST)
 Linear Strain Triangular Element (LST)
CONSTANT STRAIN TRIANGULAR (CST) ELEMENT

10. SHAPE FUNCTION DERIVATION FOR THE CONSTANT STRAIN
TRIANGULAR ELEMENT (CST)

22. STRAIN-DISPLACEMENT MATRIX [B] FOR CST ELEMENT

26. ISOPARAMETRIC, SUPERPARAMETRIC AND SUBPARAMETRIC
ELEMENTS

29. ISOPARAMETRIC ELEMENT

30. SUPERPARAMETRIC ELEMENT

31. SUBPARAMETRIC ELEMENTS

32. NUMERICAL INTEGRATION (GAUSSIANQUADRATURE)

36. THANK YOU