The development of a stitch-based strain sensor for woven lashing straps

In this paper the development of a stitch-based strain sensor for lashing straps is discussed. A variety of Three different commercial woven narrow fabric straps were embroidered with conductive yarns in two designed patterns to enable belt tension measurement and monitoring. The applications were tested in a cyclic elongation test and a creep elongation procedure to investigate the strain sensitivity and the influences of the narrow fabric’s properties, the stitch design, and the conductive yarn properties. It was found that the developed applications provided a good strain sensing ability but lack in cyclic recovery abilities

Measuring the Creep Behaviour of Corrugated Board by Cascade and Individual Test Rig

In this paper static and quasi-static test are conducted to determine the creep behaviour of corrugated board. This study shows a possible way to take the real loads occurring in container shipping into account. The aim of the measurements is to develop a new test option, which is in keeping with the loads occurring. Two test rigs have been developed and constructed for this purpose. These make it possible to measure the creep of corrugated board extremely precisely over a longer period in the aspect of climate chamber size and relative humidity (RH) distribution in the chamber. To increase the accuracy of measurement the analysis also covers those external and internal factors, which can influence the measurement of creep rates. The results show that these influences the accuracy of creep rate measurements to a significant extent, and considerable measuring errors can occur if these are disregarded. The final aim of this study in the future is to present a climate-dependent creep behaviour model for corrugated board using speed-dependent and relatively shorter tests by cascade and individual test rigs