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Search Publications by: Martin Y. M. Chiang (Assoc)

Displaying 51 - 63 of 63

The Effects of Local Inhomogeneity on Shear Property Measurements of Hybrid Composites

November 1, 2002

Author(s)

Martin Chiang, Carl R. Schultesiz, J He

Numerous biological and chemical studies involve the use of calcium hydroxyapatite Ca10(PO4)6(OH)2, HA. In this study detailed physicochemical characterization of hexagonal HA prepared from an aqueous solution was carried out employing different methods

A Microshear Test to Measure Bond Strengths of Dentin-Polymer Interfaces

June 1, 2002

Author(s)

Walter G. McDonough, Joseph M. Antonucci, J He, Y Shimada, Martin Y. Chiang, Gary E. Schumacher, Carl R. Schultesiz

Mechanical property tests such as the diametral tensile, uniaxial tensile and transverse strength tests are commonly used in studying the interfacial properties of the bond between dental composites and dental substrates such as dentin and enamel. These

Effect of Hygrothermal Aging History on Sorption Process, Swelling, and Glass Transition Temperature in a Particle-Filled Epoxy-Based Adhesive

May 1, 2002

Author(s)

M Fernandez-Garcia, Martin Y. Chiang

The effects of hygrothermal aging history and initial water content on sorption behavior and the physical properties of a commercial particle-filled, epoxy-based adhesive were studied using a water reabsorption process. FTIR-AR analysis was performed to

Experimental and Theoretical Evaluations of the Iosipescu Shear Test for Hybrid Fiber Composites

May 1, 2002

Author(s)

J He, Martin Y. Chiang, Walter G. McDonough, Donald L. Hunston

The Iosipescu shear test with a modified Wyoming test fixture (ASTM D5379-93) was investigated experimentally and theoretically as a mean for determining the in-plane shear modulus and strength of unidirectional hybrid composites. Two types of hybrid

A Technique for Deducing In-Plane Modulus and Coefficient of Thermal Expansion of a Supported Thin Film

April 1, 2002

Author(s)

Martin Y. Chiang, C. K. Chiang, Wen-Li Wu

A technique for determining the in-plane modulus and the coefficient of thermal expansion (CTE) of supported thin films has been developed. The modulus and CTE are calculated by solving two coupled equations that relate the curvature of film samples

An Analytical Assessment of Using the losipescu Shear Test for Hybrid Composites

January 1, 2002

Author(s)

Martin Chiang, J He

Application of the V-notch Shear Test for Unidirectional Hybrid Composites

January 1, 2002

Author(s)

J He, Martin Y. Chiang, Donald L. Hunston, Charles C. Han

Research and Challenges in Applied Mechanics

January 1, 2002

Author(s)

K P. Chong, Martin Chiang

The United States Government pursues diligent funding of basic research because it confers a preferential economic advantage1. The National Science Foundation (NSF) and the National Institute of Standards and Technology (NIST) have supported basic research

Assessment of Sandwich Beam in Three-Point Bending for Measuring Adhesive Shear Modulus

July 1, 2001

Author(s)

J M. He, Martin Chiang, Donald L. Hunston

A finite element analysis (FEA) was conducted to examine the feasibility of determining the shear modulus of an adhesive in a bonded geometry using a three-point bending test on a sandwich beam specimen. This specimen consists of two substrate bars bonded

Effect of Straining Rate on the Mechanical Behavior of Adhesive Bonds Under Shear Deformation

January 1, 2001

Author(s)

H Chai, Martin Chiang, Carl R. Schultesiz

The mechanical behavior of adhesive bonds is of interest in a variety of technological applications, including traditional adhesive bonds, laminated structures and composite materials. In this work, the stress strain response of adhesive bonds undergoing

Effect of Water Exposure Cycles on Physical Properties of a Partical-Filled, Epoxy-Based Adhesive

May 1, 2000

Author(s)

Martin Chiang, M Fernandez-Garcia, E M. Yorkgitis

The effect of cyclic hygrothermal aging on a particle-filled, epoxy-based adhesive was studied using a sequence of water absorption, desorption and reabsorption at different temperatures. Moisture sorption characteristics were explored by measuring the

The Effect of Hydrothermal Aging on Swelling and Tg Depression for a Particle-Filled, Epoxy-Based Adhesive

February 24, 1999

Author(s)

Martin Y. Chiang, K T. Faber, M Fernandez-Garcia

The aim of this experimental investigation was to determine the effectof moisture on he physical properties of a particle-filled adhesive for structural bonding applications (weld-bond). This study has explored moisture effect on he behaviors of swelling

Hygrothermal Aging Studies of a Commercial Structural Adhesive

February 27, 1998

Author(s)

M Fernandez-Garcia, Martin Y. Chiang

This paper presents work in progress on the study of hygrothermal behavior of commercial structural adhesives in the Polymers Division at NIST. The work includes the disciplines of polymer science and applied mechanics, where the former addresses the