... to near-tip strains. fatigue crack growth fatigue crack closure crack opening load elastic-plastic finite element modeling experimental measurement scanning electron microscope stereoimaging ASTM compliance offset method adjusted compliance ratio crack-tip strain remote displacements R...

... of the original fabric is difficult. The environmental scanning electron microscope (ESEM) is a relatively new instrument that examines materials including liquids and oils in their natural state with no prior sample preparation. The environmental chamber can contain gas or vapor at a pressure as high as 50 Torr...

.... stabilization solidification immobilization remediation reduction lime quicklime heavy metals arsenic chromium lead mercury leachability Toxicity Characteristics Leaching Procedure TCLP soil sludge ettringite energy dispersive x-ray x-ray diffraction scanning electron microscope batch...

... analysis using a scanning electron microscope (SEM) or electron microprobe on polished particle mounts allows the size, internal morphology and chemical composition to be determined on a particle-by-particle basis. Computer controlled SEM allows all factors except internal structure to be acquired...

... was investigated. The sensitivity was found to increase substantially with increasing AC current frequency. Automation ACPD aluminum crack initiation crack growth fasteners fatigue fracture mechanics multiple site cracking R -curve rivet scanning electron microscope David A. Jablonski I...

... of characterization and quantification of any particulates generated, and surface topographical changes on both head and taper contact surfaces. KEYWORDS: fatigue, fretting, Ringer's solution, wear, alumina, surface roughness, scanning electron microscope Total Hip Replacements are indispensable in successful...

... temperature (573 K). Special attention was paid to fracture processes: in situ observation of static fracture processes was also made in a scanning electron microscope (SEM). Fracture surfaces were closely examined with an SEM, and we have discussed the tensile and fatigue fracture mechanisms. The fiber...

... reactions sulfate compounds ettringite monosulfate calcium-aluminum-hydrate pozzolanic reactions unconfined compressive strength crystal morphology compositional characteristics X-ray diffraction scanning electron microscope James K. Mitchell 1 and Dimitris Dermatas ~ Clay Soil Heave Caused...

... The experimental mechanics of small cracks require high spatial resolution measurements that are only obtained by using the scanning electron microscope. This paper describes how cyclic loading stages developed for the scanning electron microscope have been used successfully to study growing...

... Examination with a scanning electron microscope (SEM) revealed that a single freeze-thaw cycle in distilled water did not damage the fibers of a needle-punched or a heat-bonded geotextile; however, significant soil particle contamination occurred in the needle-punched fabric after being frozen...

... exfoliation blisters scanning electron microscope Brij M. Pande, ^ Manmohan S. Anand, ^ and Rajendra P. Agarwala^ Dose and Energy Dependence of Helium Ion Irradiated Monel-400 REFERENCE: Pande, B. M., Anand, M. S., and Agarwala, R. P., "Dose and Energy Dependence of Helium Ion Irradiated Monel-400...

... the causes and extent of deterioration, as well as methods for its arrest and control. Investigation of the marble deterioration was carried out using the following equipment and techniques: (a) optical microscope with photomicrographic dispersive staining capability, (b) scanning electron microscope...

... classification system confining pressure initial tangent modulus scanning electron microscope thin section triaxial tests volumetric strain Nader S. Rad ^ and G. Wayne Clough' Static Behavior of Variably Cemented Beach Sands REFERENCE: Rad, N. S. and Clough, G. W., "Static Behavior of Variably Cemented...

... In order to increase understanding of the fibrous-to-cleavage fracture transition phenomenon, an examination of the fracture surfaces of A36 and A533B steel was made with a scanning electron microscope and stereoscopic photographs. By topographical characterization of matching sites...

...-voltage mode versus penetrating electrons in the high-voltage mode is discussed. scanning electron microscope linewidth measurement photoresist critical-dimension measurement field emission source field emission gun Tom F. Pomposo1 and Vincent J. Coates1 Computerized Electron-Beam Linewidth...

... with alkalis. A dense concrete with a high cement content will offer a good resistance to chemical and physical attacks. microstructure concrete thaumasite durability seawater ettringite alkalis reaction sand-cement scanning electron microscope X-ray diffraction building materials durability...

... The major objective of this investigation was to observe directly the formation or propagation of microcracks in concrete by use of the scanning electron microscope both before and after application of compressive stress fields. Concrete, under compression, fails when macrocracks have...

... A pure limestone and Iceland spar were shock calcined at several constant temperatures in the range 750 to 1300 C in a study of the pore structure of the calcines. The calcines were examined with a scanning electron microscope to follow the development of the pore structure and to correlate...

... nucleation scanning electron microscope etching evaluation tests STP453-EB/Oct. 1969 K. Kitajima1 and K. Futagami1 Fractographic Studies on the Cleavage Fracture of Single Crystals of Iron REFERENCE: Kitajima, K. and Futagami, K., "Fractographic Studies on the Cleavage Fracture of Single Crystals...