Description: Based on quadrilateral finite element principle, calculation of truss system under the action of external force, the displacement of each node and element strain. Main program BLOCKMAT. J m, read from input file node number, cell number, number of nodal load, a constrained boundary points, elastic modulus, poisson s ratio, thickness and unit defined array, node coordinate arrays, nodal force array, array constraints information. Input file inport. TXT different parameters represent different truss structure.
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四边形单元
..........\ASSEMBLE.m
..........\BLOCKMAT.m
..........\INNERSTRESS.m
..........\READIN.m
..........\STRESSMATX.m
..........\VECLOAD.m
..........\inport.txt
..........\output.txt
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