In micro-technology, there is a lack of materials data, describing the behaviour at quasistatic and cyclic loading. Material properties, that were determined using macroscopic specimen, cannot be used directly because the relation of surface to volume is higher, the number of grains in relevant cross-sections is smaller and effects of anisotropy are of major importance. Therefore, particular testing systems are necessary for proofing micro-specimens and micro-parts. The prototype of a micro universal testing machine, that allows quasistatic and cyclic loadings, was built at the Institute for Materials Science and Engineering I of the University of Karlsruhe (TH). A 4-point-swelling bending device, described in this paper work together with construction, controlling and measuring devices of the machine, was realized in a first step.
展开▼
