IMP-12: Effect of Strain Rate on the Interlaminar Fracture Toughness of Zanchor Reinforced Composites(IMP-II: IMPACT BEHAVIOR OF MATERIALS AND STRUCTURES)

2005 ◽  
Vol 2005 (0) ◽  
pp. 34 ◽  
Author(s):  
T. KUSAKA ◽  
M. HOJO ◽  
T. FUKUOKA ◽  
M. ISHIBASHI
Keyword(s):  
Fracture Toughness ◽  
Strain Rate ◽  
Impact Behavior ◽  
Reinforced Composites ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture

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

Toughening of Glass Fiber Reinforced Unsaturated Polyester Composites by Core-Shell Particles

2017 ◽  
Vol 742 ◽  
pp. 74-81 ◽  
Author(s):  
Andreas Klingler ◽  
Liubov Sorochynska ◽  
Bernd Wetzel
Keyword(s):  
Fracture Toughness ◽  
Unsaturated Polyester ◽  
Impact Behavior ◽  
Core Shell ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture ◽  
Glass Fiber Reinforced ◽  
The Matrix ◽  
Shell Particles ◽  
The Impact

This study focused on the examination of unsaturated polyester resin based continuous glass filament mat reinforced composites (GFRP) and the modification by core-shell rubber particles (CSR). The goal was to evaluate the effect of CSR toughening on processability, mechanical properties and impact strength as well as the interaction with inorganic color particles in the submicron range on the GFRP. The interlaminar fracture toughness GIc of the modified GFRP was improved by about 20% compared to the neat GFRP by using only 2 wt-% of the CSR modifier, while only marginally increasing the viscosity of the reactive mixture. The responsible mechanisms were found to be local shear yielding of the matrix and an improved fiber-matrix adhesion. The hybridization of inorganic color particles and CSR reduced the interlaminar fracture toughness of the laminate, which could be ascribed to the formation of pores due to the introduction of the oxide particles. However, the impact behavior of the GFRP was positively affected.

Sign in / Sign up

Export Citation Format

Share Document