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1,815
Cold Expansion Tests for Plates Containing Elongated Holes
"... Cold-expansion testing of D6ac plates containing an elongated (non-circular) hole, of 2:1 aspect ratio, has been undertaken using an AMRL designed interference fit plug/sleeve arrangement. The aim has been to determine the practical viability of the process as an option for addressing the cracking p ..."
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Cold-expansion testing of D6ac plates containing an elongated (non-circular) hole, of 2:1 aspect ratio, has been undertaken using an AMRL designed interference fit plug/sleeve arrangement. The aim has been to determine the practical viability of the process as an option for addressing the cracking
Application of Normal Mode Expansion to AE Waves in Finite Plates
- Journal of Applied Mechanics
, 1994
"... INTRODUCTION Breckenridge et al. (1975), Hsu (1985) and Pao (1978) adapted approaches from seismology to calculate the response at the surface of an infinite half-space and an infinite plate. These approaches have found use in calibrating acoustic emission (AE) transducers. However, it is difficult ..."
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Cited by 5 (5 self)
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INTRODUCTION Breckenridge et al. (1975), Hsu (1985) and Pao (1978) adapted approaches from seismology to calculate the response at the surface of an infinite half-space and an infinite plate. These approaches have found use in calibrating acoustic emission (AE) transducers. However, it is difficult
Pressure Gradient Effects on Hypersonic Cavity Flow Heating
"... The effect of a pressure gradient on the local heating disturbance of rectangular cavities tested at hypersonic freestream conditions has been globally assessed using the two-color phosphor thermography method. These experiments were conducted in the Langley 31-Inch Mach 10 Tunnel and were initiated ..."
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initiated in support of the Space Shuttle Return-To-Flight Program. Two blunted-nose test surface geometries were developed, including an expansion plate test surface with nearly constant negative pressure gradient and a flat plate surface with nearly zero pressure gradient. The test surface designs
Characterization of electroless nickel plating on aluminum mirrors
"... Electroless nickel is often plated on the surface of aluminum mirrors to improve the ability to polish the mirror surface. Electroless nickel plating can cause a bimetallic effect, creating distortion of a mirror surface if it is heated or cooled. Published data listing the thermal coefficient of ex ..."
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Electroless nickel is often plated on the surface of aluminum mirrors to improve the ability to polish the mirror surface. Electroless nickel plating can cause a bimetallic effect, creating distortion of a mirror surface if it is heated or cooled. Published data listing the thermal coefficient
Vibrating Tests Using Plates and Bridge
"... Structure noise from steel railway bridges when trains run on them has become issue along conventional lines. In various past studies on reduction of noise from steel bridges, we focused on and studied methods of applying vibration control material to girder members of steel bridges that generate st ..."
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and thickness of the vibration surfaces. As a result of vibrating tests using steel girder members after their service life and various types of iron panels before and after vibration control, we developed a method of estimating before and after vibration control based on physical quantities. This article
Fourth order perturbative expansion for the Casimir energy with a slightly deformed plate
"... We apply a perturbative approach to evaluate the Casimir energy for a massless real scalar field in 3 + 1 dimensions, subject to Dirichlet boundary conditions on two surfaces. One of the surfaces is assumed to be flat, while the other corresponds to a small deformation, de-scribed by a single functi ..."
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of this expansion. II- The system Scalar field ϕ satisfying Dirichlet boundary conditions on two surfaces (zero width): L and R: L) x3 = 0 R) x3 = a+ η(x‖) Where η represents a small departure from a flat configuration. The vacuum energy of the system, Evac is Evac = lim T→∞
Asymptotic Expansion of Temperature Close to a Singularity of a Plate
, 2011
"... The thermal conduction in a thin laminated plate is considered here. The lateral surface of the plate is not regular. Consequently, the boundary of the middle plane admits a geometrical singularity. Close to the origin, the lateral edge forms an angle. We shall prove that the classical bidimensional ..."
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The thermal conduction in a thin laminated plate is considered here. The lateral surface of the plate is not regular. Consequently, the boundary of the middle plane admits a geometrical singularity. Close to the origin, the lateral edge forms an angle. We shall prove that the classical
CASS FRACTURE TESTS USING FLAT PLATE SPECIMENS WITH A SURFACE FLAW
"... ABSTRACT JSME rules for fitness for service have flaw acceptance rules for cast austenitic stainless steel (CASS) pipes. They allow applying two-parameter and elastic-plastic fracture mechanics methods using Z-factor. However they do not clearly describe whether limit load method is applicable for ..."
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for the case of no or low thermal aging condition. The authors performed tensile fracture tests using flat plate specimens with a surface flaw and confirmed that limit load method is applicable in the conditions of no thermal aging and even fully saturated thermal aging with high ferrite number. Also the plate
An analog VLSI chip for thin-plate surface interpolation
- Carnegie Mellon University
, 1989
"... Reconstructing a surface from sparse sensory data is a well-known problem iIi computer vision. This paper describes an experimental analog VLSI chip for smooth surface interpolation from sparse depth data. An eight-node ID network was designed in 3J.lm CMOS and successfully tested. The network minim ..."
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Cited by 2 (0 self)
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Reconstructing a surface from sparse sensory data is a well-known problem iIi computer vision. This paper describes an experimental analog VLSI chip for smooth surface interpolation from sparse depth data. An eight-node ID network was designed in 3J.lm CMOS and successfully tested. The network
NICKEL PLATED COPPER HEAT SPREADER SURFACE CHARACTERISTICS
"... Nickel plated copper heat spreader acts as a medium to dissipate heat from silicon die towards heat-sink. Electroless nickel plating requires catalytic activation before the nickel can be deposited onto copper. Different catalytic activation techniques such as galvanic initiation and thin nickel-cop ..."
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-copper electrodeposition have diverse impact on the thermal performance of the heat spreader. Surface roughness of heat spreader was studied using Infinite Focus Microscope. High temperature storage test was also run to investigate intermetallic diffusion between the nickel and copper layers. This study found out
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