Stress-strain characteristics of 3D-braided yarn preform

Composite researchers have not realized the potential of 3D-braided yarn preforms due to limited knowledge about their stress-strain aspects. This research presents a simple model to predict stress-strain characteristics of 3D-braided sisal yarn preforms by considering the yarn's reorientation under tensile load. The 3D-braiding machine having four carriers in the rows and columns, was used to develop 3D-braided sisal yarn preforms by varying the surface braiding angles. The experimental values were compared with predicted results, and a very good agreement was observed between them.

Automated summary

This research presents a simple model to predict the stress-strain characteristics of 3D-braided sisal yarn preforms by considering the reorientation of the yarn under tensile load. 3D-braided sisal yarn preforms were developed using a 3D-braiding machine with four carriers and varying surface braiding angles. The experimental values were in very good agreement with the predicted results.