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A study of interply layer effects on the free-edge stress field of angleplied laminatesThe general-purpose finite-element program MSC/NASTRAN is used to study the interply layer effects on the free-edge stress field of symmetric angleplied laminates subjected to uniform tensile stress. The free-edge region is modeled as a separate substructure (superelement) which enables easy mesh refinement and provides the flexibility to move the superelement along the edge. The results indicate that the interply layer reduces the stress intensity significantly at the free edge. Another important observation of the study is that the failures observed near free edges of these types of laminates could have been caused by the interlaminar shear stresses.
Document ID
19850007513
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Murthy, P. L. N. (NASA Lewis Research Center Cleveland, OH, United States)
Chamis, C. C. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1984
Subject Category
Composite Materials
Report/Patent Number
E-2201
NASA-TM-86924
NAS 1.15:86924
Report Number: E-2201
Report Number: NASA-TM-86924
Report Number: NAS 1.15:86924
Meeting Information
Meeting: Symp. on Adv. and Trends in Struct. Dyn.
Location: Washington, DC
Country: United States
Start Date: October 22, 1984
End Date: October 25, 1984
Sponsors: NASA, George Washington Univ.
Accession Number
85N15822
Funding Number(s)
PROJECT: RTOP 505-33-5B
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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