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RISA Novel Model of the Equivalent Viscosity of Simple Viscoelastic Fluids
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the Maxwell model in simple shear flow by using the complex analysis, instead of the matrix analysis which is generally used in the literature. It is found that the viscoelastic fluids will behave ...
Effects of Heat Treatment on Sliding Wear and Milling Properties of Ti-6Al-4V Prepared by Selective Laser Melting
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ti-6Al-4V titanium alloy manufactured by selective laser melting (SLM) has a unique structure and properties. They offer a higher yield and ultimate tensile strengths but lower ductility than traditionally processed samples. ...
New Analytical Model for Composite Materials Containing Local Resonance Units
Publisher: American Society of Civil Engineers
Abstract: In this research, a new approach has been developed to calculate the effective mass density for a composite containing local resonance units consisting of a hard sphere core, a soft shell layer surrounding, and a stiff ...
Applying a Unit-Consistent Generalized Matrix Inverse for Stable Control of Robotic Systems
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: It is well understood that the robustness of mechanical and robotic control systems depends critically on minimizing sensitivity to arbitrary application-specific details whenever possible. For example, if a system is ...
Liquefaction of Level Ground Unsaturated Sand Deposits Using a Validated Fully Coupled Analysis Procedure
Publisher: American Society of Civil Engineers
Abstract: Liquefaction of unsaturated sands has been observed in laboratory tests and in the field. A comprehensive investigation of unsaturated sand deposits subjected to seismic loading, especially using validated computational ...
Robust Trajectory Tracking Guidance for Low L/D Lunar Return Vehicles Using Command Filtered Backstepping Approach
Publisher: American Society of Civil Engineers
Abstract: A reentry guidance method for low lift-to-drag (L/D) ratio vehicles in a lunar return mission is presented. Different from the reference drag tracking scheme, method in this paper tracks a weighted profile of altitude and ...
Dynamic Characteristics of Rotor-Squeeze Film Damper-Support System Excited by Base Harmonic Excitations Using MHB-AFT Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When operating at high speed, aeroengines mounted on the aircrafts also perform complicated maneuvering flights along with the aircrafts. The engine rotor systems will undergo forced motions excited by base movements and ...
Hybrid Atomistic-Continuum Simulation of Nanostructure Defect-Induced Bubble Growth
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effects of nanostructured defects of a copper solid surface on bubble growth in liquid argon have been investigated through a hybrid atomistic-continuum (HAC) method. The same solid surfaces with five different nanostructures, ...
Impacts of Greenland Ice Sheet on Blocking in Idealized Simulations
Publisher: American Meteorological Society
A Generalized Shear Lag Model for the “Brick-Mortar” Staggered Composite With Arbitrary Soft Phase Contents
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Although the mechanical mechanisms of staggered biological composites are widely investigated, each existing model has its own application scope. In order to comprehensively characterize the mechanical properties of the ...