A woven preform assembly comprising: a first sub-preform comprising one or more wraps (202, 203) of a continuous woven fabric about a centerline or an appropriately designed mandrel to form at least one substantially barrel-shaped circumference around the centerline, wherein said wraps have a first integral flange disposed on a first edge of said woven fabric that forms a first edge circumference around said centerline and a second integral flange disposed on a second edge of said woven fabric that forms a second edge circumference around said centerline; at least two outer sub-preforms, each of said outer sub-preforms comprising: one or more wraps (401, 402, 403, 404, 405, 406) of a continuous woven fabric about the centerline to form at least two substantially barrel-shaped circumferential surfaces around said centerline, wherein said wraps have a first outer sub-preform integral flange disposed on a first edge of said outer sub-preform woven fabric that forms a first outer sub-preform edge circumference around said centerline and a second outer sub-preform integral flange disposed on a second edge of said outer sub-preform woven fabric that forms a second edge circumference around said centerline; each said outer sub-preform substantially barrel-shaped circumference wraps around said first sub-preform substantially barrel-shaped circumference; and adjacent outer sub-preform integral flanges are in contact with each other and comprise integral stiffeners (407, 408). a first sub-preform comprising one or more wraps (202, 203) of a continuous woven fabric about a centerline or an appropriately designed mandrel to form at least one substantially barrel-shaped circumference around the centerline, wherein said wraps have a first integral flange disposed on a first edge of said woven fabric that forms a first edge circumference around said centerline and a second integral flange disposed on a second edge of said woven fabric that forms a second edge circumference around said centerline; at least two outer sub-preforms, each of said outer sub-preforms comprising: one or more wraps (401, 402, 403, 404, 405, 406) of a continuous woven fabric about the centerline to form at least two substantially barrel-shaped circumferential surfaces around said centerline, wherein said wraps have a first outer sub-preform integral flange disposed on a first edge of said outer sub-preform woven fabric that forms a first outer sub-preform edge circumference around said centerline and a second outer sub-preform integral flange disposed on a second edge of said outer sub-preform woven fabric that forms a second edge circumference around said centerline; one or more wraps (401, 402, 403, 404, 405, 406) of a continuous woven fabric about the centerline to form at least two substantially barrel-shaped circumferential surfaces around said centerline, wherein said wraps have a first outer sub-preform integral flange disposed on a first edge of said outer sub-preform woven fabric that forms a first outer sub-preform edge circumference around said centerline and a second outer sub-preform integral flange disposed on a second edge of said outer sub-preform woven fabric that forms a second edge circumference around said centerline; each said outer sub-preform substantially barrel-shaped circumference wraps around said first sub-preform substantially barrel-shaped circumference; and adjacent outer sub-preform integral flanges are in contact with each other and comprise integral stiffeners (407, 408).