FIFTH CANADIAN CONFERENCE ON NONDESTRUCTIVE ... - IAEA

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- 261 - V ßß =8.07x10" 2l (k 2 icÖy) K 2 1c/ay(MJ/m 2 ) Flg. 6: Relation between ultrasonic parameters V^ßg and mechanical properties Kic/Oy. The solid line is equation (2), which Vary used to fit his data on Titanium alloy and maraging steels. In this case Kic and oy were changed by heat treatment. The crosses correspond to the experimental data obtained for 403 stainless steel in the temperature range -60°C to +40°C.
- 262 - ACOUSTIC EMISSI<strong>ON</strong> TESTING OF MAN-LIFT DEVICES J.A. Baton Ontario Hydto Reie.an.ah Toronto, Ontario INTRODUCTI<strong>ON</strong> Safety is a very controversial issue. Whereas we may find it an acceptable risk to cross a busy street or to ski down a steep slope, we may have some reservation about flying in a commerical airliner or to be raised 20 m above the ground in a bucket of an aerial lift device unless we have some positive perception regarding the structural Integrity of the equipment. Much of this assurance is developed through nondestructive test procedures but, until recently there has been no method which could provide reliable information as to the mechanical worthiness of the fibre reinforced plastic (frp) boom of man-lift devices ("bucket trucks" or "cherry pickers"). Dielectric testing of booms is mandatory but this test, usually performed semiannually, is a poor indicator of mechanical integrity. Under dry conditions a boom on the point of mechanical failure could pass this electrical test. Conversely, seepage of moisture Into surface layers would result in dielectric failure but may not have implications in terms of mechanical fitness. Tradition NDT methods do not work well on composite materials such as frp. Radiography will show fibre direction and gross voids but little else. Ultrasound suffers high attenuation plus the fibres give rise to a myriad of reflections. Liquid pénétrants will show surface imperfections but may also cause chemical degradation of the plastic resin. However, acoustic emission monitoring can potentially detect and locate "active" defects in both frp and metallic components and can be used in a straightforward, all encompassing test. FAILURE MODES As a generality, nondestructive testing is performed to detect potential future failure of a component or structure. If such a test is to be worthwhile, it must be sensitive to the precusors of possible failure modes. Further, the test must be performed at a frequency such that the progression from the earliest reliable detection of incipient failure to actual failure cannot occur. This point will not be dealt with here but does raise some questions as to the efficacy of periodic testing of frp booms.
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q 11 Atomic Energy of Canada Limite
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ATOMIC ENERGY OF CANADA LIMITED FIF
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CINQUIEME CONFERENCE CANADIENNE SUR
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iii ACKNOWLEDGEMENT A special note
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DAY 2 KEYNOTE ADDRESS: Advanced Rad
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DAY1 KEYNOTE ADDRESS: Five Years Ex
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MB Power has a total generating cap
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The fourth lesson learned was that
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STATION UNIT Coleson Cove Coleson C
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0*'? - 8 - Ä | '••• '~-!.if~
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- 10 - 7/8 inch Titanium Tube 3D i
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The facility at CFB Greenwood was c
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CONDITION MONITORING - 14 - The Con
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- 16 - REDUCING UNWANTED EFFECTS ~
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- 18 - When this happens, the instr
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- 20 - (CJUIMTTCJW ROTOR BLADE SHOW
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- 22 - Un»hl«ld«d prob* - good b
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STEEL FASTENERS EXAMINATION OF FAST
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- 26 - SKIP FINNED TUHt •< IG 5 I
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To gain primary statistical informa
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- 30 - The next step in the develop
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Each firing of the capacitor banks
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- 34 - At the Bruce we have complet
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1 GARTER SPRING IN VERTICAL POSITIO
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DIGITAL READ OUT 3.595 TOIL ELEMENT
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- 40 - EVALUATION OF ULTRASONIC MET
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III MEASUREMENTS AND RESULTS - 42 -
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C Real defects - 44 - Here we repor
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Flaw Figure 1: Schematic of experim
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0.5 E10 Q. 8 1.5 2.0 - 48 - Positio
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- 50 - Figure 6: Optical micrograph
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- 52 - specialized applications suc
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- 54 - As the probed surface is not
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- 56 - in practice the central frin
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- 53 - bipolar pulse, as it is seen
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- 60 - 18. J.-P. Monchalln and R. H
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Sample Lens Ultrasound - 62 - Detec
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CD CO c O Q. W 0 - 64 - Sin(7TfuT)
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- 66 - AUTOMATED ULTRASONIC TESTING
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- 68 - 2.1 Scanning Bridge and Imme
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- 70 - each waveform digitization t
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- 72 - Further development of the s
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TRANSDUCER SELECT/ PULSE CONTROL -
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SCAIIIIING BRIDGE COLOUR GRAPHICS D
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Figure J — Beam profile of 3.5 MH
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- 80 - an additional reverse magnet
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- 82 - reinitialise the stress depe
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BAR MAGNET IDEAL FIELDS MEASURED FI
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- 86 - Figure 4: Hysteresis loops f
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-150 H= 1.6 kA/m COMPRESSION -100 -
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- 90 - MAGNETISATION ANHYSTERETÎC
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(b) 19 mm diameter o Hard spot 19mm
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Q. I CO zL 2 (Ky) TYPICAL UNCERTAIN
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- 96 - Figure 14: Conceptual M-H be
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- 98 - characterization program bas
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- 100 - 1. Planar transducer: l.a.
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Fig. 1 1/JS - 102 - Echos observed
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- 104 - CAPABILITIES/LIMITATIONS OF
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- 106 - V = f* - 0.9 ak N [2] h. /^
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DISCUSSION - 108 - The results of t
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- 110 - FIGURE 1: Equipment Used fo
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FIGURE 4: - 112 - 5 10 IS 10 Depth
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FIGURE 6: Output of Computer Modell
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- 116 - "Events on earth consist in
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- 118 - now _n = Af (5) n where Af
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- 120 - REFERENCES 1. J.K. Feiblema
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PULSER IMMERSION TRANSDUCER WATER ^
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- 124 - 6. Ultrasonic frequency spe
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i I 1 i l - 126 - —j 10. Ultrason
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TIME RNFOSIS PLOT CRSF: - 128 - 1H.
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- 130 - THE INTRODUCTION OF REAL-TI
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5. QUALIFYING THE IMAGE - 132 - In
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- 134 - CONVENTIONAL FILM RADIOGRAP
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- 136 - 11.3 Computer Management of
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- 138 - Back end of system. The com
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- IAO - to be loaded properly into
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20. OPERATIONAL UTILIZATION - 142 -
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% -•'v/ FILM AND SCREENS ' \ INSI
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- 146 - By design, these A/E monito
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- 148 - a) enables an A/E monitor s
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- 150 - OTHER . CHANNELS CONVENTION
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DAY 2 KEYNOTE ADDRESS: Advanced Rad
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- 152 - ADVANCED RADIOGRAPHY FOR TR
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- 154 - for light weight and resist
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- 156 - available. Application exam
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- 158 - 28. V.J. Orphan, Science Ap
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CROSS SLIDE - 160 - AXIAL DRIVE : 3
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- 162 - Fig. 4. Two neutron radiogr
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INTRODUCTION (Continued) - 164 - Pr
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- 166 - SENSITOMETRIC QUALITY CONTR
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- 168 - MAKING THE TRANSITION TO AU
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(Continued) - 170 - The primary mec
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UJNXKAST o Indicated: o Calculated:
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- 174 - F»LM_i5=l£B_ DATE22=22=ß
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- 176 - RECENT MICROFUCUS X~RAY IMA
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ABSTRACT - 178 - WET CHANNEL INSPEC
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- 180 - 5) an eddy current probe to
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- 182 - tube, say 0.5-1.0 metre, so
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ACKNOWLEDGEMENTS - 184 - Many peopl
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- 186 - TABLE 3 Operational Objecti
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Pressure Tube Fuel -Carter Spring S
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«AC UUSU«O«HII INCUMKTM - 190 -
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Inlet or Outlet £nd Outlet 2m - 19
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- 194 - AN ADVANCED HEAT EXCHANGER
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- 196 - storage terminal. However,
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2.4 Data Processing Subsystem 2.4.1
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- 200 - display parameter set could
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5. PLAYBACK - 202 - A tape playback
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" * 0 0 MOkE* i SUN! SOW A 1 3* ~V
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SLHHT POU 422/14 - 206 - x •* F-R
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- 208 - The recent failure of a Zir
Page 223 and 224: - 210 - probe in its operating envi
Page 225 and 226: - 212 - The eddy current and wall t
Page 227 and 228: 6. SUMMARY - 214 - The failure of a
Page 229 and 230: +2.5%p Lift Off •* - 216 - +5% Wa
Page 231 and 232: 0 -0.2 -0.4 -0.6 -0.8 -1.0 c .1 2 o
Page 233 and 234: 0 -0.25 -0.50 -0.75 -1.00 -1.25 i 1
Page 235 and 236: - 222 - CHECKING FOR CRACKS IN GAS
Page 237 and 238: - 224 - on the fringes. (The sensit
Page 239 and 240: Figure 1 18 MW gas turbine rotor, p
Page 241 and 242: - 228 - Figure 3 Weak penetrant ind
Page 243 and 244: - 230 - Figure 7 All signals superi
Page 245 and 246: - 232 - Figure 11 Frequency respons
Page 247 and 248: - 234 - row 3 sent to 0 4 n 1Vor?d.
Page 249 and 250: 1. INTRODUCTION - 236 - In-service
Page 251 and 252: - 238 - treatment, and bending are
Page 253 and 254: - 240 - With an AC coil surrounding
Page 255 and 256: - 242 - against magnet position, tr
Page 257 and 258: 6. SUMMARY - 244 - Conventional edd
Page 259 and 260: 10 1 Centre Magnet 2 Keepers 3 End
Page 261 and 262: A - II' Concentric Groove 0.1 mm de
Page 263 and 264: - 250 ON THE RELATION BETWEEN ULTRA
Page 265 and 266: - 252 - Following a brief descripti
Page 267 and 268: CONCLUSION - 254 - In order to veri
Page 269 and 270: - 256 - 13. R.L. Smith, F.L. Rusbri
Page 271 and 272: Ultrasonic Instrumentation - 258 -
Page 273: 100 a (m" 1 ) 10 f Slope = 4 10 - 2
Page 277 and 278: - 264 - Metal components with class
Page 279 and 280: - 266 - Any recognizable fibre dama
Page 281 and 282: - 268 - FIGURE 1 EXPULSION OF FIBRE
Page 283 and 284: 100 95 LU LU 5 S 90 ^"-85 K H H 80
Page 285 and 286: - 272 - FIGURE 6 SENSORS AND PREAMP
Page 287 and 288: 900 800 700 i/> 600 H Z O 500 U 400
Page 289 and 290: - 276 - ACOUSTIC SORTING OF GRINDER
Page 291 and 292: - 278 - 6e P = Po c - St or p = p0
Page 293 and 294: - 280 - (9) for hardened steel. All
Page 295 and 296: - 282 - but not reseted, so the com
Page 297 and 298: - 284 - GOOD CRACKED 0 2 4 6 8 0 2
Page 299 and 300: 0 - 286 - Figure 5: Resonance frequ
Page 301 and 302: - 288 - GOOD 0 .8 1.6 2.4 3.2 Level
Page 303 and 304: - 290 - THE BENEFITS OF NDT TRAININ
Page 305 and 306: - 292 - C.S.N.D.T. Chapters continu
Page 307 and 308: - 294 - The groundwork is in place.
Page 309 and 310: - 296 - The graduates of these prog
Page 311 and 312: - 298 - CERTIFICATION OF NONDESTRUC
Page 313 and 314: - 300 - (e) A differing but persist
Page 315 and 316: 250 200 150 100 50 Magnetic Particl
Page 317 and 318: LOOKING INTO THE FUTURE R.S. Sh.an.
Page 319 and 320: - 305 - Another 'near future 1 need
Page 321 and 322: - 307 - NDE OF STRUCTURAL CERAMICS
Page 323 and 324: - 309 - The system described in thi
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and - 311 - S = a 2j for XR>a (2) S
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TRANSCEIVER digital signal display
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m "O -30 z o Ul -40 u. Ul ce o o Ü
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- 317 - deep penetration in same fo
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- 319 - the density by »w3 to 7%.
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density 10 3 kg/m 3 dissipation fac
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(0 60 g40 «MM "5. 3 O ü Cö §20
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60 PZT7 Vp " - 325 - o A —polariz
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- 327 -
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- 329 - Fig. 8: Typical Outputs of
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- 331 - ULTRASONIC ANALYSIS OF VOID
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- 333 - function is approximated by
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PULSER/RECEIVER OSCILLOSCOPE SPECTR
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to •a I a. a Ê £ < IS i-o 00 -
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Figure 5: Frequency spectra from: (
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- 341 - 100 150 Void Diameter (jjm)
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- 343 - TIME (ns) Figure 9: Peak ti
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- 345 - COMPUTER SIMULATION OF ULTR
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pu = T XX + T Xy tt x y pV = T Xy +
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- 349 - linear system of equations
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- 351 - These boundary conditions a
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10. EXAMPLE - 353 - The following e
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3 "/A ! - 355 - 1 I 2 I Figs. 1-4.
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INTRODUCTION - 357 - The inspection
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- 359 - A 3 by k array was construc
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INVERSION PROBLEM - 361 - The inver
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- 363 - the right of coils 1 to 6,
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—- ••;•••• 'IM i lüi
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- 3hl 2 3 4 OISTANCE (mm) Figure h.
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- 369 - a) 0.080 X 0.010 X 0.004" 5
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- 371 - DISTANCE ;,n(m) Figure 9b
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- 373 - INTRODUCTION X-ray diffract
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and - 375 - e a -^(a + a ) + —-
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- 377 - The commercial prototype is
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- 379 - REFERENCES 1) Klug, H.P. an
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- 381 - incident x-ray beam diffrac
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- 383 - Fig. 5(a). 200 W X-ray tube
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- 385 - Fig. 7. Head of the commerc
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- 387 - APPLICATIONS OF NEUTRON DIF
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peaks which are easily measurable.
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- 391 - directions around the circu
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I.-3 TRIPLE-AXIS NEUTRON SPECTROMET
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Ad hki£ d hkil xlO 3 - 395 - INTER
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- 397 - Fig. 5 Longitudinal, tangen
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I - INTRODUCTION - 399 - Polyethyle
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- 401 - This together with the expr
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- 403 - (5v/v)fit must be considere
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Transducer Signal - 405 - P.E.(p.v)
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ü .CO ü m O o CÖ g •4—> Q 2.
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- 409 - The present study was carri
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- 411 - Since tomographlc Images ar
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- 413 - bore axis, were scanned. Th
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- 415 - normally measured with a sh
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(a) L (b) ic) 1 - 417 - •HwK- |3A
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Figure A : Orientation of the casti
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- 421 - APPENDIX A Determination of
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ÜJ I/) 1 ce TO PE/ a. 100 90 - 80
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- 425 - This paper will concentrate
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- 427 - Ultrasonic and radiographie
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- 429 - A micrograph of the laminat
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- 431 - 2. Holography requires disp
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- 433 - 10. Green, D.R., Schneller,
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- 4 35 - Fig. 2 (a): cross-section
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10 _ 0.1 1_ 0.01 0.1 1 - 437 - TIME
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• •' '
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HEATING PULSES DETECTOR " -—FILTE
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- 443 - 5 10 POSITION (mm) Fig. 10
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- 445 - MATERIALS EFFECTS ON ACOUST
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- 447 - orientation of these specim
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- 449 - determined experimentally f
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STRUCTURE •^ TRANSDUCER (S) - 451
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- 453 - 500 PRESSURE (KPO) LEAK DIA
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Caron, V. Energy Mines & Resources
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Mclntyre, Dent Babcock & Wilcox Can
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ISSN 0067-0367 To identify individu
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