Method according to which a simultaneous action of hydraulically generated bending moments and shear forces on flat materials can be carried out

摘要

Method according to which the simultaneous action of bending and shear forces on a flat test material with elastic properties, corrosion processes, or the resistance of coated materials to moving liquids can be assessed more quickly than when comparative bending forces or shear forces are used alone. In an organism, biological tissues are subject to deformation and shear forces at the same time. Under the conditions of the procedure, their behavior in the living organism is to be assessed more correctly. The method is shown by way of example on the basis of an examination of a biological tissue (14) which is placed in a container designated as the base trough (1) on two sample carriers (11a), (11b) and fixed with two clamping devices (12a), (12b) is, wherein the base tub (1), with a bath liquid (16), at the same level as the sample carriers (11a), (11b), is filled. A pulsating piston pump (3) attached to the base pan (1) can cause an excursion via a feed pipe (13a) with a connected nozzle (13b), which is located below the biological tissue (14). Furthermore, an upper trough (2) provided with an edge seal (15) can be inserted into the basic trough (1). A circulation pump (4) mounted on the upper trough, which conveys the bath liquid (16) to a flow nozzle (18), causes the outflowing bath liquid (16) to generate shear forces on the biological tissue (14).