Alexander Hrennikoff

Alexander Hrennikoff
Russian-Canadian engineer Alexander Hrennikoff
Born	Russia 1896
Died	31 December 1984(1984-12-31)
Fields	Engineering
Alma mater	Institute of Railway Engineering University of British Columbia Massachusetts Institute of Technology
Known for	Structural Engineering

Alexander Hrennikoff (Russian: Александр Хренников; 1896 — December 31, 1984) was a Russian-Canadian Structural Engineer, a founder of the Finite Element Method.

Biography

Alexander was born in Russia, graduated from the Institute of Railway Engineering in Moscow, received M.A.Sc. degree from the University of British Columbia (1933), and D.Sc degree from the Massachusetts Institute of Technology (1941). From 1933 until his death in 1984 he worked as a professor of Civil Engineering at the University of British Columbia.

Work

During his work at the Massachusetts Institute of Technology he developed the lattice analogy which models membrane and plate bending of structures as a lattice framework. While this work received little attention at the time because of the lack of computational power, it is often considered as the turning point in the Time-Line of the Structural Analysis leading to development of the Finite Element Method. He later extended the lattice models to plate and shell buckling problems, and made important contributions to the plastic design theory of metal structures.

References

• A. Hrennikoff, Solution of Problems of Elasticity by the Frame-Work Method (1941). ASME J. Appl. Mech. 8, A619–A715.
• C. A. Felippa, The Amusing History of Shear Flexible Beam Elements, 2005, available online as [1]
• J. T. Oden, Historical Comments on Finite Elements, available online as [2]

External links

• Photograph of Alexander Hrennikoff