Abstract This work investigates the potential of improving mechanical performance braided composite beams through introduction local braid angle variations. Tubular with a 45°/60°/45° length-wise (axial) variation were manufactured and tested in quasi-static three-point flexure their was compared having layer-wise (radial) [±60°/±45°/±45°] variation. Compared to uniform angles, axial tailoring ...

Auxetic materials with a negative Poison’s ratio (PR) have the potential to meet demand for different materials, especially technical textiles. In literature, Universal Tensile Test (UTT) devices and various experimental setups developed by researchers been used in PR measurements. This study aims investigate of knitted fabrics UTT extensometer comparatively using same measurement parameters ac...

In 1996 and 1997 a monitoring network was set up at the translational slide of Vallcebre. Fourteen boreholes were equipped with piezometers, wire extensometers and inclinometers. Since then groundwater levels changes and wire displacements have been automatically recorded every 20 minutes. Superficial displacements have been periodically measured with differential GPS. The monitoring network ha...

M. Mihaliková, M. Német, Faculty of Metallurgy, Technical University of Košice, Slovakia The present paper deals with measurements of the increments of strain and hardness HV10 on automotive steel sheets. The car body manufacture trends are focused, in particular, on high energy absorption capability. In the manufacture of a car body, there are requirements for high plasticity and homogeneity o...

The ability of low pH and CO(2) to induce rapid cell elongation and wall loosening in the Avena coleoptile has been examined with the use of a continuous growth-recording technique and an Instron extensometer, respectively. In particular, the properties of the response to hydrogen ions have been examined in detail and have been compared with the responses initiated by CO(2) and auxin. The optim...

A large-scale trial embankment provided with partially penetrating prefabricated vertical drains (PVD) was installed in consolidating marine clay deposits at East-Port said industrial zone project Egypt. The constructed a bottom area of 150x150m and height 5.5m to evaluate the efficiency improvement system verify design parameters. An intensive instrumentation built-up including shallow settlem...