Abstract
The use of composite materials is gradually increasing in various industrial applications due to their many improved and fascinating properties. In the present investigation a general approach has been presented for solving the plane stress problems of rectilinearly orthotropic composites. The method essentially requires known values of boundary stresses at a number of preselected points. These boundary stresses are collocated in a least square sense to get a series which can be used for the determination of stresses at inside points. It is interesting to note that the error introduced in the analysis due to collocation of boundary stresses at some points reduces towards inner points. The method has been validated by applying it to a rectangular portion of the semi-infinite plane subjected to concentrated load and comparing the results at inside points with the exact ones.
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