J-integral correlation of the initiation of slow crack growth in linear polyethylene

J. L. Bassani; N. Brown; X. Lu

doi:10.1007/bf00034275

J-integral correlation of the initiation of slow crack growth in linear polyethylene

International Journal of Fracture ◽

10.1007/bf00034275 ◽

1988 ◽

Vol 38 (1) ◽

pp. 43-59

Author(s):

J. L. Bassani ◽

N. Brown ◽

X. Lu

Keyword(s):

Crack Growth ◽

Slow Crack Growth ◽

J Integral ◽

Linear Polyethylene

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The correlation of slow crack growth in linear polyethylene by the J-integral

Polymer ◽

10.1016/0032-3861(89)90252-8 ◽

1989 ◽

Vol 30 (12) ◽

pp. 2215-2221 ◽

Cited By ~ 6

Author(s):

Xici Lu ◽

Norman Brown ◽

John L. Bassani

Keyword(s):

Crack Growth ◽

Slow Crack Growth ◽

J Integral ◽

Linear Polyethylene

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The relationship of the initiation stage to the rate of slow crack growth in linear polyethylene

Journal of Materials Science ◽

10.1007/bf01114287 ◽

1986 ◽

Vol 21 (7) ◽

pp. 2423-2429 ◽

Cited By ~ 35

Author(s):

Xici Lu ◽

Norman Brown

Keyword(s):

Crack Growth ◽

Slow Crack Growth ◽

Linear Polyethylene ◽

Initiation Stage ◽

Relationship Of ◽

The Relationship

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The effect of molecular weight on slow crack growth in linear polyethylene homopolymers

Journal of Materials Science ◽

10.1007/bf00540508 ◽

1988 ◽

Vol 23 (10) ◽

pp. 3648-3655 ◽

Cited By ~ 115

Author(s):

Yan -Ling Huang ◽

Norman Brown

Keyword(s):

Molecular Weight ◽

Crack Growth ◽

Slow Crack Growth ◽

Linear Polyethylene

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The initiation of slow crack growth in linear polyethylene under single edge notch tension and plane strain

Journal of Materials Science ◽

10.1007/bf00559346 ◽

1985 ◽

Vol 20 (12) ◽

pp. 4553-4560 ◽

Cited By ~ 40

Author(s):

Norman Brown ◽

S. K. Bhattacharya

Keyword(s):

Crack Growth ◽

Plane Strain ◽

Slow Crack Growth ◽

Single Edge ◽

Linear Polyethylene ◽

Single Edge Notch ◽

Edge Notch

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Effect of thermal history on the initiation of slow crack growth in linear polyethylene

Polymer ◽

10.1016/0032-3861(87)90350-8 ◽

1987 ◽

Vol 28 (9) ◽

pp. 1505-1511 ◽

Cited By ~ 35

Author(s):

Xici Lu ◽

Norman Brown

Keyword(s):

Crack Growth ◽

Thermal History ◽

Slow Crack Growth ◽

Linear Polyethylene

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The dependence of slow crack growth in a linear polyethylene on test temperature and morphology

Journal of Polymer Science Part B Polymer Physics ◽

10.1002/polb.1993.090310703 ◽

1993 ◽

Vol 31 (7) ◽

pp. 767-772 ◽

Cited By ~ 6

Author(s):

Xici Lu ◽

Andrew Mcghie ◽

Norman Brown

Keyword(s):

Crack Growth ◽

Test Temperature ◽

Slow Crack Growth ◽

Linear Polyethylene

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Examination of Fracture Interfaces in Silicon Nitride

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100113925 ◽

1975 ◽

Vol 33 ◽

pp. 60-61

Author(s):

Nancy J. Tighe

Keyword(s):

Silicon Nitride ◽

Grain Boundary ◽

Crack Growth ◽

Subcritical Crack Growth ◽

Slow Crack Growth ◽

Ceramic Materials ◽

Grain Boundary Sliding ◽

Boundary Phase ◽

Turbine Engines ◽

Boundary Sliding

Silicon nitride is one of the ceramic materials being considered for the components in gas turbine engines which will be exposed to temperatures of 1000 to 1400°C. Test specimens from hot-pressed billets exhibit flexural strengths of approximately 50 MN/m2 at 1000°C. However, the strength degrades rapidly to less than 20 MN/m2 at 1400°C. The strength degradition is attributed to subcritical crack growth phenomena evidenced by a stress rate dependence of the flexural strength and the stress intensity factor. This phenomena is termed slow crack growth and is associated with the onset of plastic deformation at the crack tip. Lange attributed the subcritical crack growth tb a glassy silicate grain boundary phase which decreased in viscosity with increased temperature and permitted a form of grain boundary sliding to occur.

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