Reliability of multilayer plastics reinforced in three directions in a two-dimensional random stressed state

Conclusion The method developed permits considering the random character of the components of an applied stressed state and makes it possible to analytically predict the reliability of a three-directional LRP. The possibility of optimization of the material was demonstrated and the corresponding method was developed based on an analysis of the effect of the structure (geometry of the structure of the RES, number of layers), scattering of the loading and strength parameters on the reliability of LRP. The criterion for optimization of the structure of LRP in application to the actual conditions of random loading can be used both for a given loading level and for a required reliability level. Use of the method developed can also be promising in the case of the effect of combined loads.Translated from Mekhanika Kompozitnykh Materialov, No. 6, pp. 1037–1045, November–December, 1989.