Journal of AE, Volume 25, 2007 (ca. 26 MB) - AEWG

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J.F. LABUZ, 25-364 VIDYADHAR LIMAYE, 25-373 KRYSTYNA LUBLINSKA, 25-166 O. MAKISHIMA, 25-308 TAKUMA MATSUO, 25-124 MASAMI MAYUZUMI, 25-238 NORIKO MIYOSHI, 25-107 YOSHIHIRO MIZUTANI 25-179, 25-238 C. R. L. MURTHY, 25-224 GEN NAKAYAMA, 25-157 JOHN P. NEWHOOK 25-373 HIROAKI NOMA, 25-107 MAREK NOWAK, 25-341 TADASHI ONISHI, 25-238 TAKESHI OGAWA, 25-124 MASAYASU OHTSU, 25-021 M. I. OJOVAN, 25-051 KANJI ONO, 25-001, 25-179 IRVING J. OPPENHEIM, 25-115 DIDEM OZEVIN, 25-355 KRYSTIAN PARADOWSKI, 25-166 ADRIAN POLLOCK, 25-231 G. PRASANNA, 25-224 EDOARDO PROVERBIO, 25-324 RHYS PULLIN, 25-140, 25-215 WILFRIED REIMCHE, 25-331 R. L. REUBEN, 25-348 JOHN M. RODGERS, 25-286 IGOR MARIA DE ROSA, 25-080 SABINE ROSNER, 25-149 THOMAS P. RUNARSSON, 25-252, 25-260 FABRIZIO SARASINI, 25-080 C. R. SCALES, 25-051 CHRISTIAN SCHEER, 25-331 THOMAS SCHUMACHER, 25-316 TOMOKI SHIOTANI, 25-069, 25-308 L. M. SPASOVA, 25-051 NICHOLAS S. SPIVEY, 25-187 WOJCIECH SPYCHALSKI, 25-166 J. A. STEEL, 25-348 TATSUO TABARU, 25-107 MIKIO TAKEMOTO, 25-124, 25-157, 25-172, 25-179, 25-267 YOSHIHIRO TANIYAMA, 25-157 N. A. THAKKAR, 25-348 I-6
YUICHI TOMODA, 25-021 T. TOUTOUNTZAKIS, 25-033 PETER TSCHELIESNIG, 25-276 RUNAR UNNTHORSSON, 25-252, 25-260 HARTMUT VALLEN, 25-132 JOCHEN VALLEN, 25-132 VINCENZO VENTURI, 25-324 JAMES L. WALKER II, 25-187 AMELIA P. WRIGHT, 25-115 WEI WU, 25-115 R. PAUL YOUNG, 25-294 I-7
Page 3 and 4: JOURNAL OF ACOUSTIC EMISSION VOLUME
Page 5 and 6: 25-194 ACOUSTIC EMISSION SOURCE LOC
Page 7: Volume 25 (2007) AUTHORS INDEX DIMI
Page 11 and 12: Notes for Contributors 1. General T
Page 13 and 14: In Memoriam H. Reginald Hardy, Jr.
Page 15 and 16: STRUCTURAL INTEGRITY EVALUATION USI
Page 17 and 18: The power-law AE behavior was recen
Page 19 and 20: sorting out the original signals, e
Page 21 and 22: Wood [36] in Australia has been usi
Page 23 and 24: One needs to appreciate the difficu
Page 25 and 26: In geotechnical applications, the p
Page 27 and 28: methods include the use of combined
Page 29 and 30: should take. Past attempts for stru
Page 31 and 32: 11. Suzuki, T., Ohtsu, M., Aoki, M.
Page 33 and 34: 40. http://en.wikipedia.org/wiki/Ma
Page 35 and 36: Abstract ACOUSTIC EMISSION TECHNIQU
Page 37 and 38: Fig. 1 Damage qualification by the
Page 39 and 40: After adding the data of a tested s
Page 41 and 42: Fig. 8 Sketch of a reinforced concr
Page 43 and 44: (3) Corrosion Process of Reinforced
Page 45 and 46: analysis. Corrosion cracking was si
Page 47 and 48: ACOUSTIC EMISSION MONITORING OF REI
Page 49 and 50: which - contrary to current beliefs
Page 51 and 52: Fig. 4. Applied load (actuator 1) a
Page 53 and 54: concrete and the jacket. Visual ins
Page 55 and 56: Based on conventional analysis, AE
Page 57 and 58: 2. Experimental The model pipe syst
Page 59 and 60:
pressure, respectively. This is ana
Page 61 and 62:
Fig. 6: Power spectra from fast Fou
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small leaks (below 0.1 mm diameter)
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ACOUSTIC EMISSION TECHNIQUE APPLIED
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parameters in time domain and (c) m
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above the threshold level of 40 dB
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energy, i.e., high amplitude and lo
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An optical microscopy observation o
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Continuous WT (CWT) is defined as a
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Fig. 8. Typical AE waveforms, their
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followed by abrupt jumps in the det
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E. Landis (1999), “Micro-macro fr
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EVALUATION OF REPAIR EFFECT FOR DET
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Fig. 2 Sensor array for tomography
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2 [ ] 2 k 3 9 2 2 1 f () 0 f ()
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At these depths, a complicated and
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The number of AE hits after repair
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damage indices of Calm and Load rat
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PVDF is a semicrystalline polymer,
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After these preliminary tests, the
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of PVDF sensors does not seem to ha
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Fig. 10. Evolution of a typical PAD
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Fig. 17. Evolution of a typical dur
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I-G. Kim, H-Y. Lee and J-W. Kim (20
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Pencil-lead breaks are monopoles an
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Fig. 1 Displacement vs. time, sourc
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Fig. 5 Displacement vs. time, sourc
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Fig. 8 Displacement versus time for
Page 115 and 116:
Fig. 10 Displacement vs. time. Sour
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Fig. 14 Signal amplitude versus tim
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To better relate these PLB and FEM
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HIGH-TEMPERATURE ACOUSTIC EMISSION
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thickness of 9 μm. The AlN element
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Fig. 5 Experimental setup for AE mo
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scales (and possibly salt cracks at
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DAMPING, NOISE, AND IN-PLANE RESPON
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The sharper resonance in Fig. 1c is
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i 2 RMS VDCC0 k BT = , g m 2 i
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ecause in-plane motion mostly produ
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4. B. Bahreyni, C. Shafai, Fabricat
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We first introduce our new quadridi
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Fig. 4 Amplitude profile as a funct
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Fig. 6 Change of room temperature (
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3) There are slight time lags in th
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Function Generator (FG) The functio
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Table 1 Results for continuous sens
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Fig. 7 pulse response XXX, filter :
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Fig. 11: Noise spectrum VS30-SIC-46
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waves propagate in a plate like str
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0.15 0 100kHz Driving pulse 10 100k
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0.45 0 100kHz Driving pulse 30 100k
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the sensor response to different fr
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CHARACTERISTICS OFACOUSTIC EMISSION
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Results and Discussion Shrinkage pr
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sapwood. Norway spruce wood consist
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most of the cells reached the fiber
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CHARACTERIZATION OF TITANIUM HYDRID
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Growth behavior of hydrides We stud
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were determined by the tensile test
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Figure 9 shows the Mode-I cracks in
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Results obtained are summarized as
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process of hydrogen destruction of
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Amplitude [dB] 60 55 50 45 40 35 30
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(Fig. 7) relative to the material a
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is shown in Table 1. Test specimens
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Fig. 4 Two types of AE signals dete
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the charging solution at 25 o C, by
Page 193 and 194:
ANALYSIS OF ACOUSTIC EMISSION FROM
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nearly same waveforms for the first
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values). Most (11 of 14) of the rec
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Type-D (at 3.45 ms). In this sample
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NEURAL NETWORK BURST PRESSURE PREDI
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temperature, while the remaining se
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not properly set). This results in
Page 207 and 208:
Conclusions Table 3 Summary of trai
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accurate source locations could be
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Fig. 1 Group velocities versus freq
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plane source orientation. But the l
Page 215 and 216:
Fig. 9 Out-of-plane displacement vs
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Fig. 11 WTs of Fig. 8 with superimp
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Fig. 13 WTs of Fig. 10 with superim
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Table 3 At 102 kHz, WT peak arrival
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Fig. 17 Frequency of maximum WT int
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Fig. 18 Arrangement of sensors (#1,
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location calculation result that yi
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NOVEL ACOUSTIC EMISSION SOURCE LOCA
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tion resolution. It should be noted
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The specimen with numerous holes wa
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Fig. 5. Comparison of location meth
Page 237 and 238:
Conclusions Delta-T source location
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Our approach This conceptual view c
Page 241 and 242:
Voronoi Construction: Taking a case
Page 243 and 244:
Fig. 6: Source location on a clamp
Page 245 and 246:
PROBABILITY OF DETECTION FOR ACOUST
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POD is determined at the convergenc
Page 249 and 250:
Fig. 2: Setup for illustrative runs
Page 251 and 252:
Fig. 7: Probability of location (PO
Page 253 and 254:
AE signals were filtered by high-pa
Page 255 and 256:
Fig. 3 Accuracy and variations of a
Page 257 and 258:
Fig. 7 Accuracy and variations of a
Page 259 and 260:
eference data. The absolute values
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REAL-TIME DENOISING OF AE SIGNALS B
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600 500 400 300 200 kHz700 Frequenc
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the STFT result (Fig. 4(b)). Theref
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MONITORING THE EVOLUTION OF INDIVID
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the type of filtering, number of su
Page 271 and 272:
was observed for either actuator. F
Page 273 and 274:
Conclusions An experimental methodo
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the onset of pulses, consequently,
Page 277 and 278:
zeros. The locations where a patter
Page 279 and 280:
The reliability of the additional p
Page 281 and 282:
AE MONITORING OF SOIL CORROSION OF
Page 283 and 284:
Fig. 2 Cumulative AE counts with ap
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cumulative event counts and amplitu
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AE was monitored using three types
Page 289 and 290:
Our conclusion from these tests is
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measurements with an Exxon Nuclear
Page 293 and 294:
equipment manufacturer), CISE (AE t
Page 295 and 296:
Automatic testing of receptacles du
Page 297 and 298:
The finalized standards are: • EN
Page 299 and 300:
14. Tscheliesnig P., Lackner G., He
Page 301 and 302:
Fig. 1. Typical high-temperature cr
Page 303 and 304:
• Emission rates are much higher
Page 305 and 306:
Fig. 4. Results of AE monitoring of
Page 307 and 308:
examination at 2000-5000X was able
Page 309 and 310:
samples extracted from the beam aft
Page 311 and 312:
The relative comparison of the size
Page 313 and 314:
Fig. 3. Schema of VB Application fo
Page 315 and 316:
Fig. 5. Microstructural observation
Page 317 and 318:
Fig. 7 AE source locations for diff
Page 319 and 320:
Fig. 9 CT images and corresponding
Page 321 and 322:
A.M. Brandt, G. Prokopski, J. Mater
Page 323 and 324:
conducted with AE technique. The AE
Page 325 and 326:
After location of the events, inter
Page 327 and 328:
The transit times of the individual
Page 329 and 330:
6) B. Schechinger, T. Vogel, Acoust
Page 331 and 332:
greater than the available anchorag
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location uncertainty and is the roo
Page 335 and 336:
Figures 4 and 5 illustrate all loca
Page 337 and 338:
ig cracks form, localization of AE
Page 339 and 340:
ased on magnetic induction, while i
Page 341 and 342:
Fig. 3. AE sensors positioning on b
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As a further evaluation of the degr
Page 345 and 346:
EARLY FAULT DETECTION AT GEAR UNITS
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Acoustic Emission Analysis at Rotat
Page 349 and 350:
The fixed bearing at the beginning
Page 351 and 352:
The time-frequency components of a
Page 353 and 354:
Additionally, the gear test bench h
Page 355 and 356:
APPLICATION OF ACOUSTIC EMISSION IN
Page 357 and 358:
Measurements of the acoustic backgr
Page 359 and 360:
Fig. 6. RMS for different ranges of
Page 361 and 362:
which indicate the transition from
Page 363 and 364:
surface condition. It has already b
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( 2 1) 2) ! kx1 ! k c ! x + c ! k (
Page 367 and 368:
Fig. 6: Signal above normal and def
Page 369 and 370:
DAMAGE ASSESSMENT OF GEARBOX OPERAT
Page 371 and 372:
The waveform streaming can be trigg
Page 373 and 374:
Extracting features using different
Page 375 and 376:
The classifier was used to identify
Page 377 and 378:
ASL spectral energy is further calc
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2 #_ of _ Sensors 2 2 2 ( x ) (
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Simulated Failure Plane One hundred
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It has been documented that the ini
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(a) (b) (c) (d) 95% _ 98% 98% _ 100
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IMPACT IMAGING METHOD TO MAP DAMAGE
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e) Step d) was repeated until the a
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Panel A Panel B Panel C Panel D Fig
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Journal of AE, Volume 25, 2007 (ca. 26 MB) - AEWG

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