2026-09-19T18:45:33Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/310772021-07-05T14:03:20Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Timothy Gutowski.
Beglinger, Jarrod (Jarrod Thomas), 1976-
Massachusetts Institute of Technology. Department of Mechanical Engineering
2006-02-02T18:45:37Z
2006-02-02T18:45:37Z
1998
1998
http://hdl.handle.net/1721.1/31077
42135132
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
Includes bibliographical references (p. 45).
Two significant aspects of advanced composite material forming are examined. First, the fiber deformation of aligned fiber composites formed to double curvature parts is analyzed. Aligned fiber composite lay-ups were formed over hemispherical tools and the fiber deformation was mapped. The data were intended to support the model which predicts trellising of composite fibers in double curvature. The data are, in general, too ambiguous to clearly support this model. Second, springback of woven fiber material-single curvature parts is investigated. A 90° bend was formed for varying laminate lay-ups at varying temperatures via a double diaphragm process. Principal objectives were to qualify the effects of varying lay-ups and temperatures on the net amount of springback observed. The data show that 0/90 woven lay-ups experience more springback than either +45 degree or quasi-isotropic woven lay-ups, and that heating the laminates marginally decreases the springback experienced.
by Jarrod Beglinger.
S.B.
45 p.
1770227 bytes
1773710 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
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http://dspace.mit.edu/handle/1721.1/7582
Mechanical Engineering
Forming of advanced composite materials
Thesis
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