25 Result(s)
within
Engineering
Characterization and Evaluation of Materials
Xu** Song
Chapter
-
Chapter
A Technique of Short Uniaxial Stress Pulse
A technique of nanosecond stress impulse by plate impact with a light gas gun for study of dynamic response and damage mechanism of materials resulted from such as deposition of radiation beams is reported in ...
-
Chapter
Ultrasonic Equivalent Flaw Sizing - A Time-of-Flight Approach
Ultrasonic equivalent flaw sizing is a method in which the size, shape, and orientation of a flaw is determined in terms of a best-fit simple shape, such as an ellipsoid (for volumetric flaws) or an ellipse (f...
-
Chapter and Conference Paper
Classification of Indoor Environmental Gases Using Temperature Modulation of Two SnO2 Sensing Films on a Substrate
Two SnO2 based sensing fllms(pure SnO2 and SnO2/Pt) and a Pt thin film for temperature sensor on an alumina substrate were designed and fabricated for classifying the indoor environmental gases. By controlling th...
-
Chapter and Conference Paper
Fabrication of a 94 GHz LIGA Klystrino
The klystrino developed at Stanford Linear Accelerator Center (SLAC) is a micro-fabricated klystron being the high-power source of microwaves [1]. The ultra-deep (UD) LIGA process is adopted to fabricate the m...
-
Chapter and Conference Paper
A 3-Voltage Actuated Micromachined RF Switch for Telecommunications Applications
In this paper, micromachined RF switch for telecommunications application is proposed. The switches are formed on the CPW(Coplanar waveguide) transmission lines and driven by the electrostatic force making the...
-
Chapter and Conference Paper
A Web-Based Optimization for Function Synthesis of Planar Linkage
A new web-based optimization method for function synthesis of planar linkage is developed. The technical features of this method are analyzed and a web-based design mode is confirmed, which combines the charac...
-
Chapter
Dynamic Characterization of Soft Materials
Soft materials, such as elastomers, foams, gels, and biological tissues, possess low stiffness, yield strength, and wave speeds. These characteristics pose challenges in experiment design to obtain the dynamic...
-
Chapter and Conference Paper
Kolsky Tension Bar Techniques for Dynamic Characterization of Alloys
Dynamic stress-strain response associated with damage and failure mechanisms of alloys is desired to be quantitatively determined. Dynamic tensile characterization has been demonstrated an efficient method for...
-
Chapter and Conference Paper
Dynamic Mode-II Characterization of A Woven Glass Composite
Delamination of laminated composites has been a reliability issue in applications. Fracture toughness is a critical indicator of resistance to such a delamination. Quasi-static experimental techniques determin...
-
Chapter and Conference Paper
Dynamic Tensile Characterization of Foam Materials
Polymeric foams have been widely utilized in packaging and transportation applications due to their light weight but superior energy absorption capabilities. Here the superior energy absorption is usually reco...
-
Chapter and Conference Paper
Back-directional Gated Spectroscopic Imaging for Nanoscale Deformation Analysis in Bone
Although crack mechanisms in bone have been intensively studied to have a better understanding of bone fracture, exact prefailure damage mechanisms about how cracks or deformations at nanoscales occur still re...
-
Chapter and Conference Paper
Magnetic Resonance Elastography of the Mouse Vitreous Humor In Vivo
Magnetic resonance elastography (MRE) is a novel experimental technique for estimating the dynamic shear modulus of biological tissue in vivo and non-invasively. Propagating acoustic frequency shear waves are lau...
-
Chapter and Conference Paper
Effect of Threaded Joint Preparation on Impact Energy Dissipation Using Frequency-Based Kolsky Bar Analysis
Threaded joints are used in a wide range of industries and are relied upon in maintaining component assembly and structural integrity of mechanical systems. The threads may undergo specific preparation before ...
-
Chapter
Reaction between Carbonaceous Materials Containing HDPE and Steel-Making Slag
Since waste plastics have been applied extensively in many high temperature processes such as iron- and steel-making, coke-making and carbon nano-structure manufacturing etc, the investigation about the reacti...
-
Chapter and Conference Paper
Stress Analysis of a Perforated Asymmetrical Vehicle Cooling Module Structure from Unidirectional DIC Displacement Information
The stresses in a perforated asymmetrical cooling module of a heavy commercial vehicle are determined by processing Digital Image Correlation (DIC)-recorded unidirectional displacement data with a series repre...
-
Chapter and Conference Paper
Effect of Pre-strain, Processing Conditions, and Impact Velocity on Energy Dissipation in Silicone Foams and Rubber
Silicone foams and rubber are used in a variety of applications to protect internal components from external shock impact. Understanding how these materials mitigate impact energy is a crucial step in designin...
-
Chapter and Conference Paper
Development of “Dropkinson” Bar for Intermediate Strain-Rate Testing
A new apparatus – “Dropkinson Bar” – has been successfully developed for material property characterization at intermediate strain rates. This Dropkinson bar combines a drop table and a Hopkinson bar. The drop...
-
Chapter and Conference Paper
Revisit of Dynamic Brazilian Tests of Geomaterials
Understanding the dynamic behavior of geomaterials is critical for refining modeling and simulation of applications that involve impacts or explosions. Obtaining material properties of geomaterials is challeng...
-
Chapter and Conference Paper
Radial Inertia Effect on Dynamic Compressive Response of Polymeric Foam Materials
Polymeric foams have been extensively used in shock isolation applications because of their superior shock or impact energy absorption capability. In order to meet the shock isolation requirements, the polymer...
-
Chapter and Conference Paper
Quasi-Static and Dynamic Poisson’s Ratio Evolution of Hyperelastic Foams
Poisson’s ratio of soft, hyperelastic foam materials such as silicone foam is typically assumed to be both a constant and a small number near zero. However, when the silicone foam is subjected to large deforma...
