TENSILE STRESS TRANSFER CHARACTERISTICS OF FeSiB MICROWIRE

Abstract

The article explains the possibility of tensile stress measurement in composite materials by the use of magnetic microwires. The amount of composite materials in modern airplane constructions is still increasing. It can reach the range from 50% to 100% depending on the type of the airplane. In comparison with metal materials, the composite materials have different behaviour in creation and propagation of dislocations. An embedded microsensor for internal tensile stress measurement can be created during the composite material fabrication by inserting the microwire inside the composite material. The sensor can be placed into the critical part of the construction between material layers, therefore it is possible to sense the stress of each layer. The present state of the art and planned practical goals are described in the paper.