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  2. Material failure theory - Wikipedia

    en.wikipedia.org/wiki/Material_failure_theory

    Macroscopic material failure is defined in terms of load carrying capacity or energy storage capacity, equivalently. Li [2] presents a classification of macroscopic failure criteria in four categories: Stress or strain failure; Energy type failure (S-criterion, T-criterion) Damage failure; Empirical failure

  3. Tsai–Wu failure criterion - Wikipedia

    en.wikipedia.org/wiki/Tsai–Wu_failure_criterion

    The Tsai–Wu failure criterion is a phenomenological material failure theory which is widely used for anisotropic composite materials which have different strengths in tension and compression. [1] The Tsai-Wu criterion predicts failure when the failure index in a laminate reaches 1.

  4. Christensen failure criterion - Wikipedia

    en.wikipedia.org/wiki/Christensen_Failure_Criterion

    The Christensen failure criterion is a material failure theory for isotropic materials that attempts to span the range from ductile to brittle materials. [1] It has a two-property form calibrated by the uniaxial tensile and compressive strengths T ( σ T ) {\displaystyle \left(\sigma _{T}\right)} and C ( σ C ) {\displaystyle \left(\sigma _{C ...

  5. von Mises yield criterion - Wikipedia

    en.wikipedia.org/wiki/Von_Mises_yield_criterion

    Prior to yield, material response can be assumed to be of a linear elastic, nonlinear elastic, or viscoelastic behavior. In materials science and engineering , the von Mises yield criterion is also formulated in terms of the von Mises stress or equivalent tensile stress , σ v {\displaystyle \sigma _{\text{v}}} .

  6. Goodman relation - Wikipedia

    en.wikipedia.org/wiki/Goodman_relation

    Within the branch of materials science known as material failure theory, the Goodman relation (also called a Goodman diagram, a Goodman-Haigh diagram, a Haigh diagram or a Haigh-Soderberg diagram) is an equation used to quantify the interaction of mean and alternating stresses on the fatigue life of a material. [1]

  7. T-criterion - Wikipedia

    en.wikipedia.org/wiki/T-criterion

    The T-failure criterion is a set of material failure criteria that can be used to predict both brittle and ductile failure. [1] [2]These criteria were designed as a replacement for the von Mises yield criterion which predicts the unphysical result that pure hydrostatic tensile loading of metals never leads to failure.

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  9. Micro-mechanics of failure - Wikipedia

    en.wikipedia.org/wiki/Micro-mechanics_of_failure

    Hierarchy of micromechanics-based analysis procedure for composite structures. The theory of micro-mechanics of failure aims to explain the failure of continuous fiber reinforced composites by micro-scale analysis of stresses within each constituent material (such as fiber and matrix), and of the stresses at the interfaces between those constituents, calculated from the macro stresses at the ...

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