Affiliation:
1. Air Force Materials Laboratory Wright-Patterson AFB, Ohio 45433
2. Washington University St. Louis, Missouri 63130
Abstract
An operationally simple strength criterion for anisotropic materials is developed from a scalar function of two strength tensors. Differing from existing quadratic approximations of failure surfaces, the present theory satisfies the invariant requirements of coordinate transforma tion, treats interaction terms as independent components, takes into account the difference in strengths due to positive and negative stresses, and can be specialized to account for different material symmetries, multi-dimensional space, and multi-axial stresses. The measured off-axis uniaxial and pure shear data are shown to be in good agreement with the predicted values based on the present theory.
Subject
Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites
Reference10 articles.
1. S.W. Tsai and N.J. Pagano, "Invariant Properties of Composite Materials," Composite Materials Workshop, ed. S. W. Tsai, J. C. Halpin and N. J. Pagano , Technomic (1968), p. 233.
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