Dynamic Fracture Toughness and Crack Propagation in Brittle Material

1996 ◽  
pp. 105-112 ◽  
Author(s):  
Tadashi Shioya ◽  
Fenghua Zhou
Keyword(s):  
Fracture Toughness ◽  
Crack Propagation ◽  
Dynamic Fracture ◽  
Brittle Material ◽  
Dynamic Fracture Toughness

Dynamic Mode I Fracture Toughness Test of Composites Using a Kolsky Bar

2001 ◽  
Author(s):  
C. T. Sun ◽  
C. Han
Keyword(s):  
Fracture Toughness ◽  
Crack Propagation ◽  
Dynamic Fracture ◽  
Split Hopkinson Pressure Bar ◽  
Dynamic Fracture Toughness ◽  
Kolsky Bar ◽  
Dynamic Mode ◽  
Mode I ◽  
Fracture Toughness Test ◽  
Delamination Crack

Abstract Mode I dynamic delamination fracture was studied with two polymeric fiber reinforced composites. Wedge insertion fracture test on a Kolsky bar (or split Hopkinson pressure bar) apparatus was conducted. A speed about 1,000 m/s of Mode I delamination crack propagation was achieved using high rates of loading. Dynamic fracture and crack propagation were modeled by the finite element method. Dynamic initiation fracture toughnesses of both composites S2/8552 and IM7/977-3 were obtained. For IM7/977-3, dynamic fracture toughness of IM7/977-3 associated with the high speed of propagating crack was examined. It is found that the dynamic fracture toughness of the delamination crack propagating at speed up to 1,000 m/s approximately equals to the dynamic initiation fracture toughness, which is again approximately equal to the static fracture toughness.

Dynamic fracture toughness (JId) behavior of armor-grade Q&T steel weldments: Effect of weld metal composition and microstructure

2009 ◽  
Vol 15 (6) ◽  
pp. 1017-1026 ◽  
Author(s):  
Govindaraj Magudeeswaran ◽  
Visvalingam Balasubramanian ◽  
S. Sathyanarayanan ◽  
Gankidi Madhusudhan Reddy ◽  
A. Moitra ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Weld Metal ◽  
Dynamic Fracture ◽  
Dynamic Fracture Toughness ◽  
Metal Composition ◽  
Weld Metal Composition
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