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2. 68–95–99.7 rule - Wikipedia

   en.wikipedia.org/wiki/68–95–99.7_rule

   In statistics, the 68–95–99.7 rule, also known as the empirical rule, and sometimes abbreviated 3sr, is a shorthand used to remember the percentage of values that lie within an interval estimate in a normal distribution: approximately 68%, 95%, and 99.7% of the values lie within one, two, and three standard deviations of the mean, respectively.

3. Willam–Warnke yield criterion - Wikipedia

   en.wikipedia.org/wiki/Willam–Warnke_yield...

   Three-parameter Willam-Warnke yield surface. The Willam–Warnke yield criterion [1] is a function that is used to predict when failure will occur in concrete and other cohesive-frictional materials such as rock, soil, and ceramics.

4. von Mises yield criterion - Wikipedia

   en.wikipedia.org/wiki/Von_Mises_yield_criterion

   [2] [4] Tytus Maksymilian Huber (1904), in a paper written in Polish, anticipated to some extent this criterion by properly relying on the distortion strain energy, not on the total strain energy as his predecessors. [5] [6] [7] Heinrich Hencky formulated the same criterion as von Mises independently in 1924. [8]

5. 3-sigma - Wikipedia

   en.wikipedia.org/?title=3-sigma&redirect=no

   This page was last edited on 24 September 2024, at 05:21 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

6. Stress triaxiality - Wikipedia

   en.wikipedia.org/wiki/Stress_Triaxiality

   Ductile crack propagation is also influenced by stress triaxiality, with lower values producing steeper crack resistance curves. [7] Several failure models such as the Johnson-Cook (J-C) fracture criterion (often used for high strain rate behavior), [ 8 ] Rice-Tracey model , and J-Q large scale yielding model incorporate stress triaxiality.

7. Cathie Wood Goes Bargain Hunting: 3 Stocks She Just Bought - AOL

   www.aol.com/cathie-wood-goes-bargain-hunting...

   Momentum is starting to roll Cathie Wood's way. The Ark Invest co-founder, CEO, and chief investment officer is losing to the market for the third time and has had a couple of choppy years since ...