COMPOSITE CYLINDRICAL SEGMENTS SUBJECTED TO HYGROTHERMAL AND MECHANICAL LOADS

The three-dimensional stress analysis of Kollar and Springer (1992. In t. J. Solids Structures 29, 1499-1517) is applied to a fiber-reinforce d organic matrix composite cylindrical segment subjected to hygrotherm al and mechanical loads. The segment can have an arbitrary arc length. The straight edges of the segment can be free, fixed or hinged. The w all of the cylindrical segment may be ''thin'' or ''thick''. An indivi dual fiber is at the same radial distance from the axis: no other rest rictions are placed either on fiber orientations or on stacking sequen ce. The applied hygrothermal and mechanical loads may vary radially an d circumferentially, but not axially. Solutions are presented which yi eld radially and circumferentially varying strains and stresses inside the composite cylindrical segment. To illustrate the capability of th e resulting computer code, sample problems are discussed.