Development of 3D Angle-Interlock Woven Preforms for Composites

Sandeep, DN and Sugun, BS and Kundan , K Verma and Shwetha, SN and Ashwathi, T and Anantha , Krishnan (2014) Development of 3D Angle-Interlock Woven Preforms for Composites. In: ISAMPE- INCCOM-13, 14 Nov 2014, Vikram Sarabhai Space Centre, Trivandrum.

[img] PDF
cp330.pdf

Download (1MB)

Abstract

The advent of three dimensional (3D) reinforcements has been mainly to overcome the issue of delamination and improve upon the damage tolerance properties by introducing fibres in the thickness direction for advanced composite applications. 3D preforms can be developed using various techniques. Angle-interlock weaving is one of them. This paper details about the efforts being put at CSIR-NAL for developing angle-interlock woven preforms. Four types of angle-interlock structures viz., layer-to-layer and through thickness (both with and without stuffer yarns) were developed using 6K, 400 Tex TC-33 grade Carbon tows on a custom designed handloom. The preforms without stuffer yarns had 4 layers of warp and were of 1.5± 0.2 mm thick. Preforms with stuffer yarns had 6 layers of warp (including 2 stuffer yarn layers) and were of 2.3±0.1 mm thick. Thermoset composites were prepared from these preforms using EPOLAM 2063 (an epoxy based resin system) by RTM process. The fibre weight fraction for these composites ranged from 0.53 to 0.58 and they were subjected to mechanical tests such as tensile, flexural and interlaminar shear strength. Test results showed improved response (in the warp direction) with respect to shear properties while the tensile and flexural properties were equivalent to that of the plain woven composites.

Item Type: Conference or Workshop Item (Paper)
Subjects: CHEMISTRY AND MATERIALS > Composite Materials
Depositing User: Mrs Manoranjitha M D
Date Deposited: 27 May 2016 09:31
Last Modified: 27 May 2016 09:31
URI: http://nal-ir.nal.res.in/id/eprint/12481

Actions (login required)

View Item View Item