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Highly Reduced Lumped Parameter Models Representing Impedance Functions at the Interface of One-Dimensional Viscoelastic Continua
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In recent dynamic problems dealing with high-frequency excitations, such as ultrasonic vibrations, a proper representation of rods transmitting kinetic energy from the interface attached to the ...
Fixed-Head Pile Bending by Kinematic Interaction and Criteria for Its Minimization at Optimal Pile Radius
Publisher: American Society of Civil Engineers
Abstract: This study focuses on how to determine an optimal radius minimizing the bending strains of vertical, cylindrical fixed-head piles embedded in a homogeneous elastic stratum in soil-pile-structure systems where the kinematic ...
Simple Model of Frequency-Dependent Impedance Functions in Soil-Structure Interaction Using Frequency-Independent Elements
Publisher: American Society of Civil Engineers
Abstract: This study presents a methodology to make a simple equivalent model of frequency-dependent impedance functions of soil-structure interactions using a frequency-independent spring and dashpot, together with a proposed element ...
Formulas for Determining Structural Variables to Control the Maximum Deformations and Stored Energies in Structures with Elastic-Perfectly Plastic Springs under Monotonic Loading
Publisher: American Society of Civil Engineers
Abstract: This study presents formulas for determining structural properties by which the maximum ductility factors and strain energies stored in elastic-perfectly plastic springs composing a structural system subjected to static ...
Utilization of Seasonal Sky Radiation Energy for Space Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A unique seasonal collection method of sky radiation energy was proposed. This method is especially effective in the humid area where the radiative cooling could not be expected. To collect ...
Simulative Analysis for Long-Term Underground Cool Storage Incorporating Sky Radiation Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Effects of Flexibility on Rocking Impedance of Deeply Embedded Foundation
Publisher: American Society of Civil Engineers
Abstract: This paper presents a detailed investigation of the influence on the rocking impedance of flexible sidewalls in embedded foundations. The study focuses on vertical and cylindrical foundations embedded in a homogeneous ...
Model Tests on Horizontal Impedance Functions of Fixed-Head Inclined Pile Groups under Soil Nonlinearity
Publisher: American Society of Civil Engineers
Abstract: The effects of soil nonlinearity on the dynamic behavior of fixed-head floating inclined pile groups are investigated experimentally in the form of horizontal impedance functions (IFs) and internal forces in piles. A
Formulation of Cross-Hardening in Creep and its Effect on the Creep Damage Process of Copper
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present paper is concerned with the modelling of creep and creep damage in polycrystalline metals and the experimental evaluation of the proposed model. By ascribing the reduction of creep ...
Delamination and Encapsulant Resin Cracking in LSI Plastic Packages Subjected to Temperature Cyclic Loading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Using Kr85 radioactive tracer techniques, initial sites of edge delaminations occurring during temperature cyclic tests in large-scale integrated circuit (LSI) plastic packages with either Cu alloy ...
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