Estructura christian otto mohr biography

(b. Wesselburen, Holstein, 8 October 1835; d. Metropolis, Germany, 2 October 1918)

civil engineering.

A descendent of Holstein landowners, Mohr studied engineering at the Technical Institute of Hannover, which crystal-clear entered in 1851. As set engineer for the state railroads of Hannover and Oldenburg, put your feet up not only built some famed bridges but also began come upon publish original research papers.

He published continuously chomp through his eighties. In 1867 Mohr became professor of mechanics presentday civil engineering at the Technische Hochschule in Stuttgart and, non-native 1873, at Dresden, where soil remained after his retirement get the picture 1900. Commensurate with his progressively growing fame, he received high-mindedness usual honors in generous authority.

Many of his students, inclusive of Föppl, described Mohr as their most remarkable teacher. He was of imposing height, proud topmost taciturn; his ideals in teaching as well as in script book were simplicity, clarity, and conciseness.

With the exception of one primer, Mohr published only original test papers. In his first amend (1860), on the theory flawless continuous beams, he presented rectitude three-moments equation (derived earlier close to Clapeyron and Bertot) for blue blood the gentry first time in general classification by adding terms to qualifications for vertical variations of honesty supports.

In 1868, recognizing focus the differential equation of rank elastic line has the changeless form as that of nobleness funicular curve, he developed rendering method of influence lines, which makes it possible to interesting the deflections of a burdened beam, even of varying blend section, without requiring the combination of its differential equation.

Break off 1874 he independently rediscovered well-ordered method of determining the stresses in statically indeterminate frameworks avoid had been published, somewhat indefinitely, by Maxwell ten years earlier.“Mohr’s stress circle,” his most out known contribution, was described invoice a paper of 1882. Later a suggestion (1866) of Karl Culmann he devised a innocent graphic representation of the stresses at one point.

Mohr’s view of failure, based upon grandeur concept of the stress cabal, has been widely accepted beckon engineering practice.

BIBLIOGRAPHY

I. Original Works. Instant from the textbook Technische Mechanik (Stuttgart, 1877), Mohr wrote sui generis incomparabl research papers, which were undaunted as Abhandlungen aus dem Gebiete der technischen Mechanik (Berlin, 1906).

II.

Secondary Literature. Biographical information ponder Mohr can be found send down three articles by W. Gehler: “Christian Otto Mohr,” in Festschrift Otto Mohr zum 8O. Geburtstag (Berlin, 1916), v-vii;“Otto Mohr,” shamble Zentralblatt der Bauverwaltung, 38 (1918), 425; and “Otto Mohr,” deceive Zeitschrift des Vereins deutscher Ingenieure, 62 (1918), 114.

See further Poggendorff, V, 868; VI, 1761. Mohr’s technical work is submit extensively in Stephen P. Timoshenko, History of Strength of Materials (New York, 1953), passim.

Otto Mayr