EFFECT OF DEFECTS IN VARIABLE ANGLE TOW PLACEMENT (VAT) ON MECHANICAL PROPERTIES OF COMPOSITES

Abstract

Abstract: VAT (Variable Angle Tow Placement) is an international advanced computer-controlled fiber preform forming process of fiber reinforced plastics. In this paper, three kinds of multiple product defects and defect degree of VAT process were designed, and 10 kinds of CFRP plates were made by VARI process. Ultrasonic phased array C-scan and SEM were used for macroscopic examination and microscopic characterization. The longitudinal tensile and compression tests of CFRP were carried out to study the effect of unidirectional laying defects on the mechanical properties of CFRP sheet. It is very beneficial for VAT process to be further improved, quality system to be established and benefit to be improved.

Key words: CFRP, VAT, defects, mechanical properties

CLC Number:

TB332

WANG Yi-min, YAN Chun-yun, LIU Ting, GAO Zhi-cheng. EFFECT OF DEFECTS IN VARIABLE ANGLE TOW PLACEMENT (VAT) ON MECHANICAL PROPERTIES OF COMPOSITES[J]. COMPOSITES SCIENCE AND ENGINEERING, 2020, 0(12): 100-104.

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