Comparison of the rigidity and strength of samples of glass-basalti- and glass-plastic used for geophysical equipment products.

Comparative tests of glass and glass-basalt-plastic samples were carried out and quantitative values of the characteristics of strength, rigidity and durability were obtained. The glass and glass-basalt plastic samples differed in their technological manufacturing parameters, namely: filler nomenclature (samples made of glass fiber and samples made of glass-basalt fiber), winding modes (amount of filler to the total volume of content). The diagnostic results showed that the ratio of loads at which the samples have the same durability indicates the advantage of glass-basalt-plastic samples. This characteristic allows us to judge the load-bearing capacity of the sample. The purpose of this work was to determine the ring stiffness, strength and durability under loading conditions similar to the operation of a geophysical probe in an aggressive environment (temperatures up to 150°C, hydrogen sulfide up to 0.1%, hydrochloric acid up to 10%, cyclic dynamic axial loads, bending moment, high external pressure (up to 100 MPa). As a result of studying the loading process, the following results were obtained: the superiority of the strength characteristics of samples made of glass basalt fiber over samples made of glass was confirmed; the sample loading program has been adjusted to minimize the influence of residual deformations on the maximum force value; a hybrid material – glass-basalt plastic – was proposed as an alternative to glass, capable of maintaining load-bearing characteristics in the aggressive operating conditions of a geophysical probe. [ABSTRACT FROM AUTHOR]