Decompression wave speed and crack velocity measurements during S4 test in water pressurized plastic pipes: Part 2. Criteria for onset of rapid crack propagation

2017 ◽  
Vol 59 ◽  
pp. 84-89
Author(s):  
Hyunmin Bae ◽  
Junggyu Lim ◽  
Vipin Vijayan ◽  
Tom Marti ◽  
Sunwoong Choi
Keyword(s):  
Crack Propagation ◽  
Crack Velocity ◽  
Wave Speed ◽  
Velocity Measurements ◽  
Rapid Crack Propagation ◽  
Plastic Pipes ◽  
Decompression Wave

Decompression wave speed and crack velocity measurements during S4 test in water pressurized plastic pipes: Part 1. Experimental methods

2016 ◽  
Vol 53 ◽  
pp. 338-346 ◽  
Author(s):  
Vipin Vijayan ◽  
Hyunmin Bae ◽  
Tom Marti ◽  
Sunwoong Choi
Keyword(s):  
Crack Velocity ◽  
Wave Speed ◽  
Experimental Methods ◽  
Velocity Measurements ◽  
Plastic Pipes ◽  
Decompression Wave

Impact energy and rapid crack propagation in plastic pipes

Polymer ◽  
1986 ◽  
Vol 27 (1) ◽  
pp. 76-79 ◽  
Author(s):  
Witold Brostow ◽  
Willi F. Müller
Keyword(s):  
Crack Propagation ◽  
Impact Energy ◽  
Rapid Crack Propagation ◽  
Plastic Pipes

scholarly journals A Study of Rapid Crack Propagation in Gas-Pressurized Plastic Pipes.

1994 ◽  
Vol 43 (492) ◽  
pp. 1141-1146
Author(s):  
Koichi KITAO
Keyword(s):  
Crack Propagation ◽  
Rapid Crack Propagation ◽  
Plastic Pipes

Effects of Argon as the primary impurity in anthropogenic carbon dioxide mixtures on the decompression wave speed

2016 ◽  
Vol 95 (3) ◽  
pp. 440-448 ◽  
Author(s):  
Kamal K. Botros ◽  
John Geerligs ◽  
Brian Rothwell ◽  
Thomas Robinson
Keyword(s):  
Carbon Dioxide ◽  
Wave Speed ◽  
Decompression Wave ◽  
Anthropogenic Carbon ◽  
Anthropogenic Carbon Dioxide

scholarly journals The influence of edge effects on crack propagation in snow stability tests

2014 ◽  
Vol 8 (1) ◽  
pp. 229-257
Author(s):  
E. H. Bair ◽  
R. Simenhois ◽  
A. van Herwijnen ◽  
K. Birkeland
Keyword(s):  
Crack Propagation ◽  
Strain Energy ◽  
Wave Speed ◽  
Strain Energy Release Rate ◽  
Field Tests ◽  
Strain Energy Release ◽  
Element Model ◽  
Fe Model ◽  
Test Length ◽  
Column Tests

Abstract. Propagation tests are used to assess the likelihood of crack propagation in a snowpack, yet little is known about how test length affects propagation. Guidelines suggest beams with lengths around 1 m for Extended Column Tests (ECTs) and Propagation Saw Tests (PSTs). To examine how test length affects propagation, we performed 163 ECTs and PSTs 1 to 10 m long. On days with full crack propagation in 1.0 to 1.5 m tests, we then made videos of tests 2 to 10 m long. We inserted markers for particle tracking to measure collapse amplitude, collapse wave speed, and wavelength. We also used a finite element model to simulate the strain energy release rate at fixed crack lengths. We find that: (1) the proportion of tests with full propagation decreased with test length; (2) collapse was greater at the ends of the beams than in the centers; (3) collapse amplitudes in the longer tests were consistent with the shorter tests and did not reach a constant value; (4) collapse wavelengths in the longer tests were around 3 m, 2 × greater than what is predicted by the anticrack model. Based on our field tests and FE models, we conclude that the shorter tests fully propagated more frequently because of increased stress concentration from the far edge. The FE model suggests this edge effect occurs for PSTs up to 2 m long or a crack to beam length ratio ≥ 0.20. Our results suggest that ECT and PST length guidelines may need to be revisited.

Features of failure for steel St. 3 connected with rapid crack propagation

1989 ◽  
Vol 21 (4) ◽  
pp. 441-443
Author(s):  
G. V. Klevtsov ◽  
A. G. Zhizherin ◽  
G. V. Stepanov ◽  
V. A. Makovei
Keyword(s):  
Crack Propagation ◽  
Rapid Crack Propagation

scholarly journals A reconciliation of dynamic crack velocity and Rayleigh wave speed in isotropic brittle solids

1994 ◽  
Vol 65 (2) ◽  
pp. 97-114
Author(s):  
P. D. Washabaugh ◽  
W. G. Knauss
Keyword(s):  
Rayleigh Wave ◽  
Crack Velocity ◽  
Wave Speed ◽  
Dynamic Crack ◽  
Brittle Solids ◽  
Rayleigh Wave Speed

Temperature Dependence of Rapid Crack Propagation and Arrest in A517F Steel

1974 ◽  
pp. 267-280 ◽  
Author(s):  
G. T. Hahn ◽  
R. G. Hoagland ◽  
A. R. Rosenfield
Keyword(s):  
Crack Propagation ◽  
Temperature Dependence ◽  
Rapid Crack Propagation ◽  
Crack Propagation And Arrest
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