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- Henri_Tresca abstract "Henri Édouard Tresca (October 12, 1814–June 21, 1885) was a French mechanical engineer, and a professor at the Conservatoire National des Arts et Métiers in Paris. He is the father of the field of plasticity, or non-recoverable deformations, which he explored in an extensive series of experiments begun in 1864. He is the discoverer of the Tresca (or maximal shear stress) criterion of material failure. The criterion specifies that a material would flow plastically if Tresca's criterion is one of two main failure criteria used today for ductile materials. The second important criterion is due to von Mises. See comparison on the image left: Tresca's stature as an engineer was such that Gustave Eiffel put his name on number 3 in his list of 72 people making the Eiffel tower in Paris possible. Tresca was also among the designers of the prototype meter bar that served as the first standard of length for the metric system. After the Convention of the Metre had been signed in 1875, the International Bureau of Weights and Measures (BIPM) in Sèvres, France made 28 prototype line standards of platinum-iridium. The bars had a cross section shaped like a modified letter X, designed by Tresca, called the "Tresca section". The Tresca section was designed to provide maximum stiffness. In addition, one surface of the central rib that joined the arms was designed to coincide with the bar's neutral plane, the mathematical plane inside the bar that didn't change length when the bar bent. The two marks near each end of the bar which defined the meter were ruled on this surface. Thus, to first order, the distance between the marks wouldn't change due to the slight sagging of the bar under its own weight between support points. One of the bars was selected as the International Meter. The United States received National Prototype Meters No. 27 and No. 21 in 1890. When the Mendenhall Order in 1893 declared the meter to be the fundamental length standard, No. 27 became the US primary national standard for all length measurements. It remained so until 1960.Tresca was made an honorary member of the American Society of Mechanical Engineers in 1882.".
- Henri_Tresca birthDate "1814-10-12".
- Henri_Tresca birthPlace Dunkirk.
- Henri_Tresca birthYear "1814".
- Henri_Tresca deathDate "1885-06-21".
- Henri_Tresca deathPlace Paris.
- Henri_Tresca deathYear "1885".
- Henri_Tresca discipline Mechanical_engineering.
- Henri_Tresca institution ASME.
- Henri_Tresca institution French_Academy_of_Sciences.
- Henri_Tresca nationality France.
- Henri_Tresca thumbnail Henri_Tresca.JPG?width=300.
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- Henri_Tresca birthDate "1814-10-12".
- Henri_Tresca birthPlace Dunkirk.
- Henri_Tresca dateOfBirth "1814-10-12".
- Henri_Tresca dateOfDeath "1885-06-21".
- Henri_Tresca deathDate "1885-06-21".
- Henri_Tresca deathPlace Paris.
- Henri_Tresca discipline Mechanical_engineering.
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- Henri_Tresca name "Henri Tresca".
- Henri_Tresca name "Tresca, Henri".
- Henri_Tresca nationality France.
- Henri_Tresca placeOfBirth Dunkirk.
- Henri_Tresca placeOfDeath Paris.
- Henri_Tresca shortDescription "French engineer".
- Henri_Tresca description "French engineer".
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- Henri_Tresca subject Category:Materials_science.
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- Henri_Tresca comment "Henri Édouard Tresca (October 12, 1814–June 21, 1885) was a French mechanical engineer, and a professor at the Conservatoire National des Arts et Métiers in Paris. He is the father of the field of plasticity, or non-recoverable deformations, which he explored in an extensive series of experiments begun in 1864. He is the discoverer of the Tresca (or maximal shear stress) criterion of material failure.".
- Henri_Tresca label "Henri Tresca".
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- Henri_Tresca label "Henri Tresca".
- Henri_Tresca label "Henri Tresca".
- Henri_Tresca label "Henri Tresca".
- Henri_Tresca label "Треска, Анри Эдуард".
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- Henri_Tresca depiction Henri_Tresca.JPG.
- Henri_Tresca givenName "Henri".
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- Henri_Tresca name "Henri Tresca".
- Henri_Tresca name "Tresca, Henri".
- Henri_Tresca surname "Tresca".