Journal ArticleDOI
A General Theory of Strength for Anisotropic Materials
Stephen W. Tsai,Edward M. Wu +1 more
Reads0
Chats0
TLDR
In this article, an operationally simple strength criterion for anisotropic materials is developed from a scalar function of two strength tensors, which satisfies the invariant requirements of coordinate transforma tion, 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.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.read more
Citations
More filters
Journal ArticleDOI
Experimental and finite element analyses on the post-buckling behaviour of repaired composite panels
TL;DR: In this paper, the performance of repaired thin-skinned, blade-stiffened composite panels in the postbuckling range was investigated and the results showed that under the present repair scheme the strength of the panel can be recovered satisfactorily.
Journal ArticleDOI
Evaluation of the Reliability Performance of Failure Criteria for Composite Structures
Athanasios Kolios,Stefano Proia +1 more
TL;DR: The methodology that is proposed employs a Stochastic Response Surface Method (SRSM) which combines in discrete steps FEA modelling, numerical simulations and analytical probabilistic assessment techniques, allowing use of commercial and custom developed specialized numerical tools.
Journal ArticleDOI
A Multi-Pier MP procedure for the non-linear analysis of in-plane loaded masonry walls
TL;DR: In this paper, a multi-pier MP method was proposed to evaluate the behavior of masonrywalls under in-plane loads, which can be used in a commercial software and requires only truss elements with a nonlinear softening behavior.
Journal ArticleDOI
A micromechanics and machine learning coupled approach for failure prediction of unidirectional CFRP composites under triaxial loading: A preliminary study
TL;DR: In this article, a hybrid method based on artificial neural network (ANN) and micro-mechanics for the failure prediction of IM7/8552 unidirectional composite lamina under triaxial loading is presented.
Journal ArticleDOI
Micromechanical analysis of UD CFRP composite lamina under multiaxial loading with different loading paths
TL;DR: In this paper, a 3D representative volume element (RVE) based micromechanical model is established using finite element method (FEM) to capture the coupled effects of fibres, matrix and fibre/matrix interface on the failure under different multiaxial loading conditions.
References
More filters
Book
The mathematical theory of plasticity
TL;DR: In this paper, the solution of two-dimensional non-steady motion problems in two dimensions is studied. But the solution is not a solution to the problem in three dimensions.
Journal ArticleDOI
The Brittle Strength of Orthotropic Materials
TL;DR: In this article, a phenomenological fracture condition for ortho tropic brittle materials is proposed, which can account for widely differing compressive and tensile strengths in ortho tropical brittle materials.
Invariant properties of composite materials.
Stephen W. Tsai,N. J. Pagano +1 more
TL;DR: The use of these invariants in materials evaluation and design optimization is discussed in this article, where simple formulas, based upon micromechanics results, are derived for the invariant in terms of constituent material properties.
Journal ArticleDOI
Strength of glass-reinforced plastics in the complex stress state
I. I. Gol'denblat,V. A. Kopnov +1 more
TL;DR: In this paper, a tensor invariant strength criterion for anisotropic materials of the glass-reinforced plastic type is proposed, which takes into account not only the different ultimate strengths in tension and compression in each direction but also the dependence of the ultimate shear strengths on the sign (direction) of the shear stresses.
Journal ArticleDOI
Classic theories of failure of anisotropic materials
TL;DR: In this paper, a modification of Marin's criterion that includes six constants, five of which are evaluated from four uniaxial loading conditions and a pure shear condition, is introduced.
Related Papers (5)
Failure analysis of frp laminates by means of physically based phenomenological models
A. Puck,Helmut Schürmann +1 more