INVESTIGATION INTO THE EFFECT OF STITCHING IN CFRP ON MODE II DELAMINATION TOUGHNESS

ZHU Hua-dong; JIAO Gui-qiong; YANG Bao-ning

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Article Navigation > Acta Materiae Compositae Sinica > 2001 > 18(2): 85-88

ZHU Hua-dong, JIAO Gui-qiong, YANG Bao-ning. INVESTIGATION INTO THE EFFECT OF STITCHING IN CFRP ON MODE II DELAMINATION TOUGHNESS[J]. Acta Materiae Compositae Sinica, 2001, 18(2): 85-88.

Citation:

ZHU Hua-dong, JIAO Gui-qiong, YANG Bao-ning. INVESTIGATION INTO THE EFFECT OF STITCHING IN CFRP ON MODE II DELAMINATION TOUGHNESS[J]. Acta Materiae Compositae Sinica, 2001, 18(2): 85-88.

ZHU Hua-dong, JIAO Gui-qiong, YANG Bao-ning. INVESTIGATION INTO THE EFFECT OF STITCHING IN CFRP ON MODE II DELAMINATION TOUGHNESS[J]. Acta Materiae Compositae Sinica, 2001, 18(2): 85-88.

Citation:

ZHU Hua-dong, JIAO Gui-qiong, YANG Bao-ning. INVESTIGATION INTO THE EFFECT OF STITCHING IN CFRP ON MODE II DELAMINATION TOUGHNESS[J]. Acta Materiae Compositae Sinica, 2001, 18(2): 85-88.

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INVESTIGATION INTO THE EFFECT OF STITCHING IN CFRP ON MODE II DELAMINATION TOUGHNESS

1.
Dept. of Engineering Mechanics, Northwestern Polytechnical University, Xi'an 710072, China;
2.
Institute of Spacecraft System Engineering, Beijing 100083, China

Received Date: 1999-09-14
Rev Recd Date: 1999-12-13
Publish Date: 2001-05-15

Abstract

Abstract

Effects of through-thickness stitching on Mode II interlaminar fracture toughness(G_II) and modes of delamination of composite laminates were investigated by performing end-notched flexure(ENF) tests. Vertical displacement of loading point and crack shear displacement(CSD) between upper and lower crack surfaces at the end of ENF specimens were measured. Different stitch yarns and stitch densities were considered. The addition of stitching was found to decrease the initiation interlaminar fracture toughness G_IIi, but can effectively suppress the growth of delamination.
- composite laminates,
- stitching,
- mode II interlaminar fracture toughness,
- crack growth resistance
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