Abstract
Spunbonded nonwoven fabrics are extensively used in a number of technical applications due to their physical, mechanical and hydraulic characteristics. In geotextile application, when these types of fabrics are used under the road or railway track, the fabrics are subjected to dynamic loads. The compressional behaviour of these types of fabrics changes with the dynamic loading cycles. The change in compressional behaviour with dynamic loading has been studied using laboratory equipment. After the application of a known dynamic load with a particular frequency for different durations, the needle punched spunbonded nonwoven fabrics show a very prominent change in their compressional behaviour, while the changes in the compressional behaviour in the case of the thermally bonded spunbonded nonwoven fabrics is relatively small.
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