A micromechanical model for prediction of mixed mode I/II delamination of laminated composites considering fiber bridging effects

2018 ◽  
Vol 94 ◽  
pp. 46-56 ◽  
Author(s):  
Z. Daneshjoo ◽  
M.M. Shokrieh ◽  
M. Fakoor
Keyword(s):  
Mixed Mode ◽  
Laminated Composites ◽  
Micromechanical Model ◽  
Mode I ◽  
Fiber Bridging

On the mixed mode I/II delamination R-curve of E-glass/epoxy laminated composites

2017 ◽  
Vol 171 ◽  
pp. 19-31 ◽  
Author(s):  
M.M. Shokrieh ◽  
A. Zeinedini ◽  
S.M. Ghoreishi
Keyword(s):  
Mixed Mode ◽  
Laminated Composites ◽  
Mode I

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

Kinking of Transversal Interface Cracks Between Fiber and Matrix

2006 ◽  
Vol 74 (4) ◽  
pp. 703-716 ◽  
Author(s):  
Federico París ◽  
Elena Correa ◽  
Vladislav Mantič
Keyword(s):  
Boundary Element Method ◽  
Mixed Mode ◽  
Applied Load ◽  
Micromechanical Model ◽  
Circumferential Stress ◽  
Mode I ◽  
Mode Ii ◽  
Pure Mode ◽  
Interface Cracks ◽  
The Matrix

Under loads normal to the direction of the fibers, composites suffer failures that are known as matrix or interfiber failures, typically involving interface cracks between matrix and fibers, the coalescence of which originates macrocracks in the composite. The purpose of this paper is to develop a micromechanical model, using the boundary element method, to generate information aiming to explain and support the mechanism of appearance and propagation of the damage. To this end, a single fiber surrounded by the matrix and with a partial debonding is studied. It has been found that under uniaxial loading transversal to the fibers direction the most significant phenomena appear for semidebonding angles in the interval between 60deg and 70deg. After this interval the growth of the crack along the interface is stable (energy release rate (ERR) decreasing) in pure Mode II, whereas it is plausibly unstable in mixed mode (dominated by Mode I for semidebondings smaller than 30deg) until it reaches the interval. At this interval the direction of maximum circumferential stress at the neighborhood of the crack tip is approximately normal to the applied load. If a crack corresponding to a debonding in this interval leaves the interface and penetrates into the matrix then: (a) the growth through the matrix is unstable in pure Mode I; (b) the value of the ERR reaches a maximum (in comparison with other debonding angles); and (c) the ERR is greater than that released if the crack continued growing along the interface. All this suggests that it is in this interval of semidebondings (60-70deg) that conditions are most appropriate for an interface crack to kink. Experiments developed by the authors show an excellent agreement between the predictions generated in this paper and the evolution of the damage in an actual composite.

Investigation of mixed mode I/II interlaminar fracture toughness of laminated composites by using a CTS type specimen

1998 ◽  
Vol 61 (3-4) ◽  
pp. 325-342 ◽  
Author(s):  
R. Rikards ◽  
F.-G. Buchholz ◽  
H. Wang ◽  
A.K. Bledzki ◽  
A. Korjakin ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Mixed Mode ◽  
Laminated Composites ◽  
Type Specimen ◽  
Mode I ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture

Delamination propagation criterion including the effect of fiber bridging for mixed-mode I/II delamination in CFRP multidirectional laminates

2017 ◽  
Vol 151 ◽  
pp. 302-309 ◽  
Author(s):  
Yu Gong ◽  
Libin Zhao ◽  
Jianyu Zhang ◽  
Yana Wang ◽  
Ning Hu
Keyword(s):  
Mixed Mode ◽  
Mode I ◽  
Propagation Criterion ◽  
Fiber Bridging ◽  
Delamination Propagation

On the mixed mode I/II/III translaminar fracture toughness of cotton/epoxy laminated composites

2020 ◽  
Vol 109 ◽  
pp. 102760
Author(s):  
A. Zeinedini ◽  
M.H. Moradi ◽  
H. Taghibeigi ◽  
J. Jamali
Keyword(s):  
Fracture Toughness ◽  
Mixed Mode ◽  
Laminated Composites ◽  
Mode I

scholarly journals A new mixed mode I/II failure criterion for laminated composites considering fracture process zone

2018 ◽  
Vol 98 ◽  
pp. 48-58 ◽  
Author(s):  
Z. Daneshjoo ◽  
M.M. Shokrieh ◽  
M. Fakoor ◽  
R.C. Alderliesten
Keyword(s):  
Failure Criterion ◽  
Mixed Mode ◽  
Fracture Process ◽  
Fracture Process Zone ◽  
Process Zone ◽  
Laminated Composites ◽  
Mode I

Mixed-Mode I/II/III Fracture Grip Interface

2010 ◽  
Vol 3 (2) ◽  
pp. 131-139
Author(s):  
Arash Karpour ◽  
Khosrow Zarrabi
Keyword(s):  
Mixed Mode ◽  
Mode I

Study of mixed mode I/II cohesive zone models of different rank coals

2021 ◽  
Vol 246 ◽  
pp. 107611
Author(s):  
Jianfeng Yang ◽  
Haojie Lian ◽  
Vinh Phu Nguyen
Keyword(s):  
Cohesive Zone ◽  
Mixed Mode ◽  
Mode I ◽  
Cohesive Zone Models
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