A mechanism for sub-surface median crack initiation in glass during indenting and scribing

1990 ◽  
Vol 25 (1) ◽  
pp. 575-579 ◽  
Author(s):  
Weili Cheng ◽  
Iain Finnie
Keyword(s):  
Crack Initiation ◽  
Median Crack

Unique crack behaviors of glass BK7 occurred in successive double scratch under critical load of median crack initiation

2020 ◽  
Vol 40 (8) ◽  
pp. 3279-3290 ◽  
Author(s):  
Junyuan Feng ◽  
Zhenping Wan ◽  
Wei Wang ◽  
Xiaofang Huang ◽  
Xinrui Ding ◽  
...  
Keyword(s):  
Crack Initiation ◽  
Critical Load ◽  
Median Crack

scholarly journals Application of Acoustic Emission Technique to Identifying Median Crack Initiation (Part 1)

1987 ◽  
Vol 95 (1101) ◽  
pp. 503-508
Author(s):  
Eiichi YASUDA ◽  
Yasuhiro TANABE ◽  
Kaoru MIYAHARA ◽  
Takayuki FUKAI ◽  
Shiushichi KIMURA ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Crack Initiation ◽  
Acoustic Emission Technique ◽  
Median Crack

Rubber Fracture Characterization Using J-Integral

1988 ◽  
Vol 16 (1) ◽  
pp. 44-60 ◽  
Author(s):  
C. L. Chow ◽  
J. Wang ◽  
P. N. Tse
Keyword(s):  
Crack Initiation ◽  
Carbon Black ◽  
Natural Rubber ◽  
Fracture Parameter ◽  
J Integral ◽  
Specimen Length ◽  
Fracture Characterization ◽  
Premature Failure ◽  
Testing Procedures ◽  
Material Evaluation

Abstract The use of the J-integral to investigate fracture characterization in a carbon black reinforced natural rubber is described. Three applications to crack initiation are included: two based on the use of a hypothetical zero specimen length and one on conventional testing procedures for metals. While the validity of the zero-length methods is questionable, the conventional method yielded a consistent Jc value of 1.01 N/mm for a typical tire compound. This value was obtained from 24 combinations of varying specimen geometries and pre-crack lengths. The J-integral is revealed as a valid fracture parameter that is applicable not only for material evaluation but also for designing tire structures to resist premature failure. These conclusions disagree with those from an earlier investigation, so the causes for the discrepancies are examined and discussed.

Analysis of the Crack Initiation at Non-Metallic Inclusions in High-Strength Steels

2012 ◽  
Vol 49 (8) ◽  
pp. 468-479 ◽  
Author(s):  
P. Grad ◽  
B. Reuscher ◽  
A. Brodyanski ◽  
M. Kopnarski ◽  
E. Kerscher
Keyword(s):  
Crack Initiation ◽  
High Strength Steels ◽  
High Strength ◽  
Metallic Inclusions

STRESS CORROSION CRACK INITIATION BEHAVIOR FOR THE X70 PIPELINE STEEL BENEATH A DISBONDED COATING

2012 ◽  
Vol 48 (10) ◽  
pp. 1267 ◽  
Author(s):  
Zhiying WANG ◽  
Jianqiu WANG ◽  
En-hou HAN ◽  
Wei KE ◽  
Maocheng YAN ◽  
...  
Keyword(s):  
Crack Initiation ◽  
Stress Corrosion ◽  
Stress Corrosion Crack ◽  
Pipeline Steel ◽  
X70 Pipeline Steel ◽  
Disbonded Coating
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