NC State
  • 1981
    pp 479-525R. W. Perkins and R. E. MarkSome New Concepts of the Relation between Fibre Orientation, Fibre Geometry, and Mechanical PropertiesAbstractPDF

    Following the initial work of Cox (1), a number of studies has been carried out with the objective of predicting the in-plane mechanical behaviour of paper in terms of the geometrical structure of the fibre network and the mechanical properties of the fibres. Recently Perkin s(2) developed a self-consistent model based on the straight segments of the fibres.

  • 1981
    pp 527-559Christer Fellers, Bo Westerlind, and Alf de RuvoAn Investigation of the Biaxial Failure Envelope of Paper: Experimental Study and Theoretical AnalysisAbstractPDF

    In the theoretical part of this paper, the Tsai-Wu tensor theory is used to determine the equation for the biaxial strength envelope of a material.

    One great advantage of using the Tsai-Wu theory for investigating biaxial strength envelopes is that it may be transformed to arbitrary co-ordinate axes by means of tensor transformation laws.

    In the experimental part of the paper, the strengths in compression and shear are evaluated using thick-walled tubes consisting of two layers of paper glued together with a non-penetrating glue. In addition, the strength of paper under biaxial stress is determined by subjecting paper tubes to axial tension or compression combined with a radial tension caused by internal pressure.

    In the final part of the paper, the application of the Tsai-Wu tensor theory to the prediction of failure of a corrugated container is discussed, as well as practical means of limiting the number of experiments necessary to establish the biaxial failure envelope of paper.


54 years ago

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