Irakli Gudushauri

Gudushauri Irakli was born in Kazbeki (village Sno) on May 15, 1925. He graduated from Polytechnical Institute (1950) in Tbilisi and, afterwards, the post-graduate courses in Moscow (1953). He defended the Candidate of Science dissertation in Moscow on March 19,1954. He leads a pedagogic activity in Georgian Technical University since 1956 year, and, here had he defended the Doctor of Science dissertation on May 19, 1967. He is corresponding Member of the Academy of Sciences of Georgia and Academician of the Engineering Academy of Georgia. He is professor since 1968 year. The major of his scientific research is connected with impovements for mechanics of solid body, particularly: the theory of three dimensional elasticity; the theory of thick and thin envelopes and blocks; the theory of arch and dome dams; the contact problems on calculation of some buildings' elastic half-space; three dimensional hydromechanic problems etc.. Below, some results of his research will be considered chronologically.

He investigated method of calculating on elastic half-space of basement blocks [1], in which there are taken into account the influence of reactive tangent strains neglected before. The author's certificate was granted to him, which is so rare for theoretical investigation. The results of this investigation rehabilitated the world wide acknowledged Garsevanov's (Garsevanishvili) analytical model of elastic half-space for buildings' basements, instead which, in former USSR, there was set the new model of finite thickness elastic layer because of the calculated results for basement block's flexure were almost twice exceeding the data of natural observation. There was proved that this difference between theoretical and natural data is caused by neglecting the reactive tangent strains of basement blocks' elastic half-space in early methods [1]-[5],

He has given so called "bobbin method" of calculating on the elastic half-space of the gravity dam [3], which is adequate to exact method in sence of practical precision [21] and effective especially for calculation of in-rock fastened and beforehand stressed concrete dam. This result was obtained with Pole professor S.Matskevich and there was published joint monograph [14].

He was investigated the theory of arch and dome dams in ordinary differential equations [6]-[13],[15],[16],[21],[22]. The numerical realization of this theory does not need a complicate procedures conserned testing strains as it is for world wide spread american method. On its base are made standard programs for all outer actions (seismic among them). Using them there was set optimal geometry for Enguri dam, which was inclucated in its project by Ministery of Energetic of USSR with order #140 (18.08.1967). The well-known invited specialists from firm "Electrconsult" wanted to obtain these programs.

Based on the mentioned theory he introduced a new direction in the general science of the theory of elasticity, which is given in his monograph by following basic parts: space problems in general curved co-ordinates;some problems in concrete co-ordinate systems and their respective two dimensional problems (plane and axic symmetric); the theory of thick envelopes and blocks; the theory of thin envelopes and blocks; the analytical method of large blocks for complicated objects; the theory of arch and dome dams, etc. It differs from classical theory of elasticity, not only by mathematical simplicity, which is reached by reducing the problems to integration of ordinary differential equations, but also by higher effectiveness to satisfy precisely an arbitrary boundary condition. For example, by using it for envelopes' calculation, there are precisely satisfied all five real boundary conditions, which is impossible in classic theory and, therefore, they are represented by four unrealitic conditions of hypthetical presumptions (Kirchhoff's for instance) [24]. The analytical method of large blocks affords [25] to avoid almost wholly the nude numerical approximations, that is the trend observed in the world.

In last years (since 1996 years) he has showed the possibility to generalize the theory of elasticity in ordinary differential equations for two and three dimensional problems of classical hydromechanics [23], which aims to avoid mathematical difficulties conserned integration of Navie-Stokes partial differential equations for projecting the hydrotechnical buildings.

Address:

Kipshidze str., build. 6, apt.19
Tbilisi, Georgia

Tel: 23-31-04 (home), 38-30-20 (office)

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