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Keywords: strain measurement
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eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7723-9
... As optical systems and optical processing become more common and more affordable, some materials testing laboratories are replacing traditional displacement or strain measurement extensometers with noncontacting solutions. A wide variety of noncontacting measurement devices exist...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2005
ISBN-10: 0-8031-3479-7
ISBN: 978-0-8031-3479-9
... programs. These are summarized and discussed. Recommendations for future full-scale certification test programs are also discussed. full-scale fatigue test full-scale static test structural certification strain measurement Michael G. Sullentrup1 The F/A-18E/F Full-Scale Static and Fatigue Test...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2890-8
ISBN: 978-0-8031-2890-3
... and tuning input drive files for this railcar test bed is illustrated using data from experiments recently performed by the railroad industry. accelerated test car body fatigue freight train instrumentation multiaxial loads railcar rainflow histogram ride quality strain measurement...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2865-7
ISBN: 978-0-8031-2865-1
... to be stable. extensometers in-plane biaxial testing strain measurement experimental techniques cruciform specimen cyclic testing elevated temperature multiaxial fatigue deformation David L. Krause I and Paul A. Bartolotta 1 An In-Plane Biaxial Contact Extensometer REFERENCE: Krause, D. L...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2854-1
ISBN: 978-0-8031-2854-5
... to the geotextile, but also the method of strain gauge attachment must not change the surface properties of the geotextile significantly. Two common methods of geotextile strain measurement are attaching strain gauges directly to the geotextile with an adhesive agent and mounting electronic sensors by means of two...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2854-1
ISBN: 978-0-8031-2854-5
... Ten years ago the coefficient of variation of creep test measurements in our laboratory was reported as being 8.6% to 12%. Now it is between 1.0 and 1.6%. This paper reports on the changes which have brought about this large improvement in accuracy. creep strain measurement laboratory...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2609-3
ISBN: 978-0-8031-2609-1
... one third of the expected burst pressure for an undamaged specimen. composites failure impact damage prediction neural networks acoustic emission video image correlation strain strain measurement nondestructive testing (NDT) nondestructive evaluation (NDE) pressure vessels rocket...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2403-1
ISBN: 978-0-8031-2403-5
... design was facilitated through use of an analytical model to predict performance. A prototype transducer was tested and compared to foil resistance strain gage results. The prototype demonstrated 25 microstrain resolution over a 10% strain range. fiber optic strain measurement optic lever Guy...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2403-1
ISBN: 978-0-8031-2403-5
... of 20–50 microstrain can easily be obtained. Some preliminary results are presented showing the sensitivity of the results obtained to the contact force between the extensometer and the specimen. strain measurement extensometer soft materials biomechanics soft tissues Nigel Shrive, 1 Erich...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2001-X
ISBN: 978-0-8031-2001-3
... for SRR99 are compared with the TF results. thermal fatigue thermo-mechanical fatigue high temperature low cycle fatigue superalloy single crystal induction heating strain measurement Frank Meyer-Olbersleben,1 Carlos C. Engler-Pinto Jr.,1 and Farhad R6za'i-Aria 1 ON THERMAL FATIGUE OF NICKEL...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-2017-6
ISBN: 978-0-8031-2017-4
..., a new fatigue testing apparatus was developed that simulates the operating loads for the steam turbine, including centrifugal forces, untwisting moments, and bending moments. The results of the strain measurement and the low-cycle fatigue tests verified the use of the peak stress, which was calculated...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1879-1
ISBN: 978-0-8031-1879-9
... analyses are being compiled for publication as a family of design curves. composite materials stress concentration strain concentration holes hole interaction strain measurement experimental stress analysis James R. Sorem, Jr., t Edward H. Glaessgen, 2 and Steven M. Tipton a Experimental...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1419-2
ISBN: 978-0-8031-1419-7
... for empirical parameters. notched strength hole size effect subcritical damage radiography scanning electron microscopy strain measurement finite element analysis linear elastic fracture mechanics splitting delamination damage mechanics composite materials fracture fatigue (materials) M...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1287-4
ISBN: 978-0-8031-1287-2
... loading tests, relations between the temperature changes and the damage state of the material can be found. Damage development is also investigated by strain measurements and radiography. composite materials carbon fiber reinforced plastics monotonic and cyclic loading temperature measurement...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0472-3
ISBN: 978-0-8031-0472-3
... lap welds resistance seam welds cryogenics fatigue notch sensitivity stress intensity factor cyclic loads strain measurement finite element method elastic-plastic analysis lsao Soya, 1Hironori Takashima, 1and Yoichi Tanaka 1 An Application of Stress Intensity Factor to Fatigue Strength...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1976
ISBN-10: 0-8031-0547-9
ISBN: 978-0-8031-0547-8
... distributions. mechanical tests high temperature tests strain measurement crack propagation strain concentration deformations M. J. Manjoine^ Determination of Plastic or Creep Strains by Grids REFERENCE: Manjoine, M. J., "Determination of Plastic or Creep Strains by Grids," Recent Developments...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1976
ISBN-10: 0-8031-0360-3
ISBN: 978-0-8031-0360-3
... involved a layer of metal with a thickness of about four average grains. fatigue (materials) copper surface properties cyclic loads strain hardening strain measurement crack propagation plasticity tests crack initiation Yoshifumi Nakano^ andB. I. Sandor'^ Cyclic Plasticity of Copper...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1975
ISBN-10: 0-8031-0533-9
ISBN: 978-0-8031-0533-1
... project. This paper describes the apparatus and procedures used for obtaining strain data on the bracing members, and compares the measured forces with design forces in the bracing. excavation bracing strains strain measurement extensometers inclinometers temperature measuring instruments...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1973
ISBN-10: 0-8031-0081-7
ISBN: 978-0-8031-0081-7
... sands. cohesionless soils density (mass/volume) sands gelatins solidification liquefaction cyclic loads variability strain measurement soil mechanics J. J. Emery, 1 W. D. L i a m F i n n / a n d 1~. W. Lee s Uniformity of Saturated Sand Specimens REFERENCE: Emery, J. J., Finn, W. D...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1973
ISBN-10: 0-8031-5528-X
ISBN: 978-0-8031-5528-2
... thermal testing is reviewed. Strain measurement, signal conditioning, computer utilization, fatigue crack growth, vacuum and environmental control, nondestructive testing, acoustic emission, and fractography are reviewed as they pertain to fatigue at elevated temperature. Specimen design, gripping...