ABSTRACT
In order to increase the employment temperature range of FRP sandwich shells exploited at the constructions of gas exhaust trunks it is suggested to make the core of shells from the basalt mineral wool plates. Numerical and analytical calculations were made of the deformed state and buckling of the sandwich shells with the mineral wool core. Was shown that the usage of mineral wool plates instead of the plastic foam as the core of sandwich shells without additional structural modifications significantly decreases the rigidity and stability of shells. On the other hand, the implementation of circular connecting elements in the core significantly increases shell rigidity and stability, compensating low mechanical properties of the core. Despite of low mechanical properties of the mineral wool plates they still can make considerable work in the consistence of shells and not to be neglected.
