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Lead Frame and Wire Length Limitations to Bond Densification
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: At IC package lead counts above 100, the limiting factor for bond densification in single layer packages with gold wire interconnections shifts from pad pitch to a combination of lead tip ...
Discussion: “Indentation of a Circular Membrane” (Yang, W. H., and Hsu, K.-H., 1971, ASME J. Appl. Mech., 38, pp. 227–230)
Publisher: The American Society of Mechanical Engineers (ASME)
Collapse of a Gas-Filled Spherical Cavity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The PLK coordinate perturbation technique [10] is used to obtain a solution to the problem of collapse of gas-filled spherical cavity in an infinite compressible liquid. The gas is assumed to ...
Combined Bending and Compression of a Pressurized Circular Cylindrical Membrane Column
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Load-lateral deflection curves are developed for a pressurized tube of circular cross section under combined bending and compression. The tube walls are assumed to have negligible compressive ...
Reexamination of the Kolsky Technique for Measuring Dynamic Material Behavior
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A one-dimensional wave propagation analysis is carried out to assess the validity of the Kolsky formulas [1] for average stress and strain in a specimen exhibiting bilinear elastic-plastic ...
Reflection and Refraction of Weak Elastic-Plastic Waves
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The method of singular surfaces is used to obtain expressions for the amplitudes of weak discontinuities reflected from or transmitted across interfaces between solids of dissimilar elastic-plastic ...
The Effect of Residual Stresses on the Critical Crack Length Predicted by the Griffith Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Griffith theory for unstable crack length is modified to take into account the effect of residual (self-equilibrating) stresses. An expression relating the uniform stress, physical properties ...
Bending of a Curved Bar of Micropolar Elastic Material
Publisher: The American Society of Mechanical Engineers (ASME)
Response of a Rigid-Plastic Ring to Impulse Loading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Formulas are derived which describe the dynamic response of a ring of rigid-plastic material which is subjected to an arbitrarily distributed impulse load. When the impulse is distributed over ...
Dynamic Creep Instability of Initially Straight, Centrally Loaded Columns
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An examination is made of the assumptions underlying the Rabotnov-Shesterikov theory of dynamic creep instability [1] to determine a reason for the reported poor agreement between theoretical ...