Title: Punch Crush and Punch Shear Damage Behavior of Uni-Directional S-2 Glass Composite Ribbons at Sub-Millimeter Length Scale

Authors: Bazle Z. (Gama) Haque, Molla A. Ali, Daniel J. O’Brien and John W. Gillespie Jr.

DOI: 10.33599/nasampe/s.22.0789

Abstract: Punch crush and punch shear are two important damage mechanisms of composites under high velocity ballistic impact. In order to model these mechanisms at micromechanical length scales, punch crush and punch shear experiments have been conducted on unidirectional composite ribbons of sub-millimeter thickness (80~100 microns). For the punch crush experiments, a flat punch of 100 micron width has been found suitable. On the other hand, punch shear experiments have been conducted in the annulus width (distance between support edge to punch edge) range 5 micron to 65 micron. Scanning electron microscopic (SEM) images have been used to determine the fiver volume fraction (FVF) and study the fracture surface. Three different unidirectional composites have been fabricated using S-2 glass with 933 and 906 sizing and three different matrix resin systems, i.e., Dow epoxy Resin DER353, FURAN diepoxy, and TGDDM with 20%mPRS (partially reacted structure). Micro punch crush and punch shear experimental methodology have been developed to conduct experiments at sub-millimeter length scale. Results show that punch crush strength is fiber dominated and punch shear strength is a function of punch shear annulus & matrix resin type.

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Conference: SAMPE 2022

Publication Date: 2022/05/23

SKU: TP22-0000000789

Pages: 21

Price: $42.00