Iron powder PZH-5, indicator of hour type, critical force, sample, shell, stability

Experiments were carried out to investigate the loss of stability of empty and filled with bulk materials cylindrical samples during bending. The samples were made in physical and geometric similarity[10,11] with large-sized tankers for transportation of bulk materials[12]. The sample was rigidly fixed at one end on the test bench, and on the other, the free end of the sample, a transverse force was applied. It was increased until the moment when the loss of stability of the sample occurred. The test sample was filled with iron powder PZH-5, river sand, copper powder by 30%, 60% and 90% by volume. The obtained results of experimental studies have been analyzed and the graphs of the dependence of the critical load on the degree of filling of samples for the tested materials lose stability in the elastic stage of operation. When buckling is formed, the diamond-shaped indentations around a rigid fixing in the compressed area bulge inside

Petrov Mikhail Vasilyevich

e-mail:   katya.gonik@mail.ru,  Dr.  Sci.,  Professor,  I.  Ulyanov  Chuvash  State  University, Cheboksary,  Russia.

Gonic Ekaterina Grigoryevna

e-mail: katya.gonik@mail.ru, Senior lecturer, I. Ulyanov Chuvash State University, Cheboksary, Russia.

Fedorova Tatyana Georgievna

e-mail: tanusha2884@mail.ru, Ph. D., Assoc. Professor, I. Yakovlev Chuvash State Pedagogical University, Cheboksary, Russia.