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#Example_421 A plane stress problem fem #Set up the FEM environment fem define nodes;r;planestress;example #read in 6 nodes to define a plate fem define window;c #Calculate the window size fem define bases;r;;example #Define a bilinear basis function fem define elements;r;;example #Define two elements fem define fibre;d #Default fibre angle fem define elements;r;;example fibre fem draw lines #Make the line segments visible fem draw elements #Make the element numbers visible fem draw nodes #Make the node numbers visible fem define equation;p lock #Define a static analysis using # linear elasticity with plane stress # elements for elements 1 & 2. # Enter basis function type #1 for both # displacement components. Default all # other options. fem define material;p #Define the material parameters. Define # an isotropic material with a Young's # modulus of 200 GPa, Poisson's ratio # of 0.3 (i.e. Steel). Default all other # options fem list material #List the material parameters fem define initial;p #Define initial and boundary conditions # for the problem. Set both the x and # y displacements at node 1 and 6 to 0 # and apply an integrated force of 10 kN # in the x direction at node 3 and an # integrated force of 5 kN in the # y-direction at node 5. fem draw nodes #Draw the nodes. Note the fixed nodes are # now indicated. fem define solve;p #Define the solver. The default options # should be used. fem solve #Solve the boundary value problem fem draw line deformed dotted #Draws deformed body with dotted lines fem list node solution #List the nodal displacements fem list node reaction #List the nodal reactions (forces) fem list stress #List the element stresses fem draw stress scale 1.5 #Draw (scaled) principal stress vectors fem draw reaction scale 0.04 #Draw (scaled) reaction (force) vectors fem define field;p #Define a field for calculating the stress # field. Define the number of field # variables to be 1. Default all other options. fem define elem;p field #Define the field elements. Default all # questions. fem update gauss stress #Calculate the stresses at the gauss pts fem define fit;p gauss lock #Define the fit problem in order to fit # the stress field. Default all options. # It should be noted for later that the # gauss pt var to be fitted indicates what # the stress information to be fitted is. # Gauss pt var 1 corresponds # to the 1st principal stress component, # var 2 is the 2nd principal stress # component and var 3 is the strain # energy). fem fit #Fit the stress field to the stresses at # the gauss points. fem draw field #Draw the stress field.

Name Modified Size

example_421.com 15-Feb-2001 3.9k planestress.ipbase 10-Apr-2000 1.1k planestress.ipelem 10-Apr-2000 611 planestress.ipelfb 10-Apr-2000 366 planestress.ipequa 26-May-2003 1.8k planestress.ipfiel 10-Apr-2000 799 planestress.ipfit 13-Apr-2007 1.7k planestress.ipinit 10-Apr-2000 739 planestress.ipmate 10-Apr-2000 1.4k planestress.ipnode 10-Apr-2000 1.3k planestress.ipsolv 13-Apr-2007 1.0k planestress.opstre 10-Apr-2000 2.7k

Name Modified Size

examples_4_42_421.tar.gz 14-Apr-2007 5.6k

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