scholarly journals Thickness effect on Mode I trans-laminar fracture toughness of quasi-isotropic carbon/epoxy laminates

2019 ◽  
Vol 210 ◽  
pp. 145-151 ◽  
Author(s):  
Xiaodong Xu ◽  
Aakash Paul ◽  
Michael R. Wisnom
Keyword(s):  
Fracture Toughness ◽  
Thickness Effect ◽  
Mode I ◽  
Laminar Fracture ◽  
Isotropic Carbon

On the mixed mode I/II/III inter-laminar fracture toughness of cotton/epoxy laminated composites

2020 ◽  
Vol 105 ◽  
pp. 102400 ◽  
Author(s):  
Elham Moradi ◽  
Afshin Zeinedini
Keyword(s):  
Fracture Toughness ◽  
Mixed Mode ◽  
Laminated Composites ◽  
Mode I ◽  
Laminar Fracture

The Inter-Laminar Fracture and Mechanical Behavior of Nano-Alumina Modified Glass Fiber/ Epoxy Composite

2012 ◽  
Author(s):  
Mathew John ◽  
Raghu V. Prakash ◽  
Raman Velmurugan
Keyword(s):  
Fracture Toughness ◽  
Glass Fiber ◽  
Epoxy Resin ◽  
Mode I ◽  
Mode Ii ◽  
Glass Fiber Reinforced ◽  
Nano Alumina ◽  
Alumina Particles ◽  
Laminar Fracture ◽  
Modified Epoxy

This paper presents the effect of addition of nano-alumina particles on the fracture properties of glass fiber reinforced plastic (GFRP) composite laminates. Epoxy resin is the most commonly used polymer matrix for advanced composite materials in view of its ability to adhere to a wide variety of fillers; on curing, they provide excellent stiffness and dimensional stability. However the highly cross linked epoxy often behaves undesirably brittle, because, plastic deformation is constrained, leading to poor resistance to crack initiation and propagation. Hence it is necessary to improve the toughness without sacrificing the other important mechanical and thermal properties. In this work, glass-fiber-reinforced composite with nano-alumina modified epoxy matrix was successfully produced with a hand lay-up process and characterized by EDAX and XRD technique for its composition. The experimental results show that the composites exhibited improvements in inter-laminar toughness values (GIC and GIIC) along with improvements in other mechanical properties, especially in toughness related properties. The Mode-I interlaminar fracture toughness for 2 phr (per hundred gram resin) nano-alumina was 2.5 times higher than that of unfilled epoxy and the Mode-II inter-laminar fracture toughness improved by 37%. The significant increase in Mode-I fracture toughness and improvement in Mode II inter-laminar fracture toughness resulting from the nano-particle modification, indicates a pronounced increase in matrix toughness. Impact tests suggest that the energy absorption capability of the GFRP considerably improved with the addition of equi-axed nano-alumina particles with epoxy resin. The laminate and fracture surface morphology analysis was done to understand the fracture and toughening mechanisms behind these property changes. The bending characteristic such as ILSS and Flexural properties recorded the maximum improvements of 14% and 17% respectively for the laminate with nano-alumina modified epoxy. A significant improvement in flexural modulus of over 37% was noticed with respect to unmodified epoxy. The experimental results show that the tensile modulus exhibited 15% improvement compared to laminate without nano-alumina, while, a modest change was observed in the tensile strength.

scholarly journals Is there a ply thickness effect on the mode I intralaminar fracture toughness of composite laminates?

2020 ◽  
Vol 107 ◽  
pp. 102473 ◽  
Author(s):  
C. Furtado ◽  
A. Arteiro ◽  
P. Linde ◽  
B.L. Wardle ◽  
P.P. Camanho
Keyword(s):  
Fracture Toughness ◽  
Composite Laminates ◽  
Thickness Effect ◽  
Mode I

scholarly journals Effect of Testing Method Type and Specimen Size on Mode I Fracture Toughness of Kimachi Sandstone

2019 ◽  
Vol 135 (5) ◽  
pp. 33-41 ◽  
Author(s):  
Minami KATAOKA ◽  
Yuzo OBARA ◽  
Leona VAVRO ◽  
Kamil SOUCEK ◽  
Sang-Ho CHO ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Specimen Size ◽  
Mode I ◽  
Mode I Fracture ◽  
Mode I Fracture Toughness ◽  
Testing Method

Influence of specimen geometry on mode I fracture toughness of asphalt concrete

2021 ◽  
Vol 276 ◽  
pp. 122181
Author(s):  
Si Fuan ◽  
Ma Ke ◽  
Liu Kanghe ◽  
Li Kun ◽  
M.R.M. Aliha
Keyword(s):  
Fracture Toughness ◽  
Asphalt Concrete ◽  
Specimen Geometry ◽  
Mode I ◽  
Mode I Fracture ◽  
Mode I Fracture Toughness

scholarly journals The effect of modified tannic acid (TA) eco-epoxy adhesives on mode I fracture toughness of bonded joints

2021 ◽  
Vol 96 ◽  
pp. 107122
Author(s):  
Mohamed Nasr Saleh ◽  
Nataša Z. Tomić ◽  
Aleksandar Marinković ◽  
Sofia Teixeira de Freitas
Keyword(s):  
Fracture Toughness ◽  
Tannic Acid ◽  
Mode I ◽  
Bonded Joints ◽  
Mode I Fracture ◽  
Mode I Fracture Toughness ◽  
Epoxy Adhesives

Effect of temperature on the fracture toughness of wood under mode I quasi-static loading

2019 ◽  
Vol 223 ◽  
pp. 863-869
Author(s):  
N. Dourado ◽  
M.F.S.F. de Moura
Keyword(s):  
Fracture Toughness ◽  
Static Loading ◽  
Effect Of Temperature ◽  
Mode I
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