Glass, Volume 22 |
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Page 189
Right at the tip ( x = 0 ) the stress is 0 / S = 1 + 2c / a ( 10 ) In terms of the radius of
curvature p = a ? / c of the crack tip o / S = 1 + 2Vc / p = 2Vc / ( 11 ) If the crack is
not elliptical in shape , it can be shown that Eq . ( 11 ) is still the proper form .
Right at the tip ( x = 0 ) the stress is 0 / S = 1 + 2c / a ( 10 ) In terms of the radius of
curvature p = a ? / c of the crack tip o / S = 1 + 2Vc / p = 2Vc / ( 11 ) If the crack is
not elliptical in shape , it can be shown that Eq . ( 11 ) is still the proper form .
Page 190
TABLE VI COMPARISON BETWEEN THE EXACT SOLUTION AND THE
WESTERGAARD APPROXIMATION FOR THE STRESS NEAR A CRACK TIP (
distance from origin ) / ( crack length ) ( y / c ) ( stress ) / ( applied stress ) ( o / s )
Exact ...
TABLE VI COMPARISON BETWEEN THE EXACT SOLUTION AND THE
WESTERGAARD APPROXIMATION FOR THE STRESS NEAR A CRACK TIP (
distance from origin ) / ( crack length ) ( y / c ) ( stress ) / ( applied stress ) ( o / s )
Exact ...
Page 197
direct experimental test of these relations ; in some limited tests there is evidence
for the dependence of failure stress on ... These criteria are based on Griffith ' s
calculation of the strain energy change in a stressed material caused by a crack .
direct experimental test of these relations ; in some limited tests there is evidence
for the dependence of failure stress on ... These criteria are based on Griffith ' s
calculation of the strain energy change in a stressed material caused by a crack .
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Contents
Water in Glass | 75 |
Applications | 121 |
Gel Method for Making Glass | 129 |
Copyright | |
11 other sections not shown
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Common terms and phrases
acid addition adsorption alkali alkoxide analysis applied atoms band Bartholomew bond bulk calculated cause Ceram Chem chemical clusters coefficient components composition concentration constant contraction crack crystals curve decrease dependence depth determination developed discussed distribution Doremus effect energy equation et al example expansion experimental failure fatigue fibers formation formed fracture function geometry give given glass surfaces groups heating higher hydrated hydrolysis hydrosilicate important increase influence ions Kamiya layer lead length load lower material mean measured melting metal method mole observed obtained occurs oxide phase Phys possible prepared pressure processes produced propagation properties range ratio reaction region samples seal shown in Fig shows silicate glasses SiO2 soda-lime Solids solution strain strength stress structure studies Table technique temperature thermal tion values vapor viscosity water content
Bibliographic information
| Title | Glass, Volume 22 Glass, Minoru Tomozawa Volume 12 of Treatise on materials science and technology |
| Editors | Minoru Tomozawa, R. H. Doremus |
| Publisher | Academic Press, 1977 |
| Original from | the University of Michigan |
| Digitized | 29 Nov 2007 |
| ISBN | 0123418127, 9780123418128 |
| Export Citation | BiBTeX EndNote RefMan |