Evaluation of Mode-1 interlaminar fracture toughness for fibre-reinforced composites materials

Composites ◽  
1992 ◽  
Vol 23 (2) ◽  
pp. 133
Keyword(s):  
Fracture Toughness ◽  
Reinforced Composites ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture ◽  
Composites Materials ◽  
Fibre Reinforced Composites

Preparation of Polyimide Nanofiber Membranes and Interlaminar Toughness Investigation of Their Toughened Composites

NANO ◽  
2021 ◽  
Author(s):  
Hailiang Wu ◽  
Chao Yu ◽  
Yuan Chen ◽  
Chao Yan ◽  
Xiaoqing Wu ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Fiber Diameter ◽  
Reinforced Composites ◽  
Interlaminar Fracture Toughness ◽  
Fiber Reinforced ◽  
Water Contact ◽  
Interlaminar Fracture ◽  
Electrospinning Method ◽  
Ft Ir ◽  
Nanofiber Membranes

Interlaminar delamination and brittle fracture of matrix have been a dilemma that fiber-reinforced composites have been faced with. Herein, the polyimide (PI) nanofiber-toughened glass fiber fiber-reinforced epoxy composites were prepared by electrospinning method and subsequent vacuum assistant resin transfer molding. The effect of spinning parameters including PI concentration, applied voltage, collector distance, jet speed and ambient humidity on the resultant fiber diameter and its distribution was systematically evaluated. The surface properties of obtained PI nanofibers were characterized by FT-IR, TG-DSC and water contact angle. The effect of PI concentration on tensile strength of PI membranes was also studied. The mode I (G[Formula: see text] and mode II (G[Formula: see text] interlaminar fracture toughness were measured. The results indicated that GIc and GIIc increased by 127.69% and 85.33%. The improvement of interlaminar fracture toughness may be attributed to the bridging effect of PI nanofibers.

scholarly journals Mode I Interlaminar Fracture Toughness Analysis of Co-Bonded and Secondary Bonded Carbon Fiber Reinforced Composites Joints

2018 ◽  
Vol 20 (suppl 2) ◽  
pp. 873-882 ◽  
Author(s):  
Camila Belo Gomes Brito ◽  
Rita de Cássia Mendonça Sales Contini ◽  
Ricardo Francisco Gouvêa ◽  
Arthur Scaglioni de Oliveira ◽  
Mariano Andrés Arbelo ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Carbon Fiber ◽  
Fiber Reinforced Composites ◽  
Mode I ◽  
Reinforced Composites ◽  
Interlaminar Fracture Toughness ◽  
Fiber Reinforced ◽  
Interlaminar Fracture ◽  
Carbon Fiber Reinforced Composites ◽  
Carbon Fiber Reinforced
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