This is a part of our undergraduate project titled 'Aeroelastic modelling of insect flight' carried out in the school of Mechanical sciences, Indian Institute of Technology Goa.
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Authors: Nithin Adidela, Revanth Sharma, Y. Sudhakar
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email: {nithin.adiela.16003,revanth.sharma.16003,sudhakar}@iitgoa.ac.in
The simulation is tested with CalculiX 2.15 in a machine running Ubuntu 18.04.
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l = 8 m
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h = 1 m
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t = 1 m
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Number of elements 822
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E = 210 GPa
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ν = 0.3
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Fy = 9 MN
The dimensions of the cantilever beam are length, l is 8 m. Height, h is 1 m. Thickness t is 1 m. Mesh element type is he20r which is a 3-D quadratic beam element. Elasticity Modulus of the material used is 210 GPa; Poisson’s ratio is 0.3;
Degrees of freedom of the fixed end nodes are arrested along X, Y, and Z and the degree of freedom of all the nodes is arrested along the Z axis.
Concentrated Load of 10 N is applied after equally dividing it among the free-end nodes along the negative Y-axis. The domain is shown in the figure
$ cgx -b beam.fbd
$ ccx beam | tee beam.log
$ cgx -v beam.frd
To visualize the x-directional displacement,
$ ds 1 e 1
To visualize the y-directional displacement,
$ ds 1 e 2
To visualize the z-directional displacement,
$ ds 1 e 3
To visualize the σxx,
$ ds 2 e 1
To visualize the σyy,
$ ds 2 e 2
To visualize the σzz,
$ ds 2 e 3
To visualize the von-Mises stress,
$ ds 2 e 7