Fracture behavior and toughening mechanism in Zanchor reinforced composites under mode II loading

2009 ◽  
Vol 69 (14) ◽  
pp. 2323-2330 ◽  
Author(s):  
Takayuki Kusaka ◽  
Keiko Watanabe ◽  
Masaki Hojo ◽  
Toshiyasu Fukuoka ◽  
Masayasu Ishibashi
Keyword(s):  
Fracture Behavior ◽  
Mode Ii ◽  
Reinforced Composites ◽  
Toughening Mechanism ◽  
Mode Ii Loading

scholarly journals Fracture Behavior of Carbon-Epoxy under Different Loading

2020 ◽  
Vol 9 (3) ◽  
pp. 1145-1149
Keyword(s):  
Fracture Surface ◽  
Strain Energy ◽  
Fracture Behavior ◽  
Strain Energy Release Rate ◽  
Strain Energy Release ◽  
Mode I ◽  
Mode Ii ◽  
New Materials ◽  
The Common ◽  
Mode Ii Loading

Delamination is the common failures of composite material attributed to various reasons, most importantly the potential stiffness degradation leading to small flaws and subsequently theypropagate, and it becomes essential to characterize the new materials for interlaminar fracture. For the present study Carbon /epoxy system of IM7/8552 was investigated under mode I and mode II loading. Material was formed into unidirectional laminates with Teflon inserts at its mid length. The specimens were machined according to ASTM standards, Tests were executed on a quasi-static Intron 8225, with load control at 5 mm/ min and 2 m/min for the mode -I and mode-II respectively. The strain energy release rate was found to be GIC=0.266 kJ/m2 and GIIC=0.687 kJ/m2 . Fiberbridging was prominently absent in the DCB samples Examination of the fracture surface by SEM at SAIF, in IIT{M) and the nature of the fracture surface revealed the typical failure mechanism pertaining to mode-I and mode-II failuremechanisms

Study on dynamic fracture behavior of TA15ELI alloy under mode-II loading by caustics method

Rare Metals ◽  
2010 ◽  
Vol 29 (4) ◽  
pp. 361-365 ◽  
Author(s):  
Rui Liu ◽  
Songxiao Hui ◽  
Wenjun Ye ◽  
Xujun Mi ◽  
Baiqing Xiong ◽  
...  
Keyword(s):  
Dynamic Fracture ◽  
Fracture Behavior ◽  
Mode Ii ◽  
Caustics Method ◽  
Mode Ii Loading

scholarly journals Mechanical Properties of CaO–Al2O3–SiO2 Glass-Ceramics Precipitating Hexagonal CaAl2Si2O8 Crystals

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 393
Author(s):  
Kei Maeda ◽  
Kosho Akatsuka ◽  
Gaku Okuma ◽  
Atsuo Yasumori
Keyword(s):  
Fracture Toughness ◽  
Liquidus Temperature ◽  
Fracture Behavior ◽  
Glass Ceramics ◽  
High Fracture Toughness ◽  
Flexural Test ◽  
Toughening Mechanism ◽  
High Fracture ◽  
X Ray ◽  
Microcrack Toughening

Fracture behavior via a flexural test for a newly found CaO–Al2O3–SiO2 (CAS) glass-ceramic (GC) was compared with that of enstatite GC and mica GC, which are well-known GCs with high-fracture toughness and machinability, respectively. By focusing on the nonelastic load–displacement curves, CAS GC was characterized as a less brittle material similar to machinable mica GC, compared with enstatite GC, which showed higher fracture toughness, KIC. The microcrack toughening mechanism in CAS GC was supported by the nondestructive observation of microcracks around the Vickers indentation using the X-ray microcomputed tomography technique. The CAS GC also showed higher transparency than mica GC due to its low crystallinity. Moreover, the precursor glass had easy formability due to its low-liquidus temperature.

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