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Search Publications by: Joannie Chin (Fed)

Displaying 51 - 61 of 61

Ultraviolet Chambers Based on Integrating Spheres for Use In Artificial Weathering

November 1, 2001

Author(s)

Joannie W. Chin, E Byrd, N Embree, Jonathan W. Martin, J D. Tate

Laboratory ultraviolet (UV) chambers are widely used to obtain weathering data for a wide range of commercial polymer products including coatings, textiles, elastomers, plastics and polymeric composites. Although numerous improvements have been made in the

Elevated Temperature Aging of Glass Fiber Reinforced Vinyl Ester and Isophthalic Polyester Composites in Water, Salt Water, and Concrete Pore Solution

September 1, 2001

Author(s)

Joannie W. Chin, W Hughes, A Signor

In recent years, the use of fiber-reinforced vinyl ester and isophthalic polyester (isopolyester) composites in civil infrastructure has greatly increased, due to an optimum combination of desirable properties, processability, and ease of installation

Report of the Ultraviolet (UV) Subpanel

August 1, 2001

Author(s)

Joannie W. Chin

This manuscript is one of 7 sections in a report on the environmental durability of fiber-reinforced composite materials to be published and distributed by the Civil Engineering Research Foundation.

A State of the Art Report on the Durability Aspects of Fiber-Reinforced Polymer (FRP) Composites

July 1, 2001

Author(s)

Joannie W. Chin, V M. Karbhari, D R. Reynaud

Although fiber-reinforced polymer (FRP) composites are increasingly being used for the renewal of civil infrastructure, there are still some major questions related to the durability of these materials in a civil engineering environment. This concern is

Effects of Water, Salt Solution and Simulated Concrete Pore Solution on the Properties of Composite Matrix Resins Used in Civil Engineering Applications

April 1, 2001

Author(s)

Joannie W. Chin, K Aouadi, M R. Haight, W Hughes, Tinh Nguyen

One of the obstacles hindering the acceptance of polymer composites in civil engineering applications is the susceptibility of the polymeric matrix to degradation that is initiated by moisture, temperature, and corrosive chemical environments. The

Use of Integrating Spheres as Uniform Sources for Accelerated UV Weathering of Advanced Materials

August 1, 2000

Author(s)

Joannie W. Chin, Jonathan W. Martin, Walter E. Byrd, E Embree

The primary method for obtaining laboratory weathering data for a wide range of commercial polymer products including coatings, textiles, elastomers, plastics and polymeric composites is through the use of ultraviolet radiation exposure chambers (UV

Temperature Effects on Fatigue of Polymer Composites

July 1, 2000

Author(s)

Hai C. Tang, Tinh Nguyen, Tze J. Chuang, Joannie W. Chin, Hanchang F. Wu, J Lesko

Fiber-reinforced polymeric composites provide lightweight, high strength, and corrosive resistance to severe environmental exposures. These composites have been extensively used in aerospace and military application over the last three decades and are

Critical Gaps in Durability Data for FRP Composites in Civil Infrastructure

May 1, 2000

Author(s)

V M. Karbhari, Joannie W. Chin, D R. Reynaud

Although fiber reinforced polymer (FRP) composites are increasingly being used for the renewal of civil infrastructure, there are still some major questions related to the durability of these materials in a civil engineering environment. This concern is

Fatigue Model for Fiber-Reinforced Polymeric Composites in Civil Engineering Applications

May 1, 2000

Author(s)

Hai C. Tang, Tinh Nguyen, Joannie W. Chin, J Lesko, Tze J. Chuang

A fatigue model based on cumulative damage is developed for predicting the fatigue life of fiber-reinforced polymeric composites in offshore applications. This model incorporates applied maximum stress, stress amplitude, loading frequency, residual tensile

Sorption and Diffusion of Water, Salt Water and Concrete Pore Solution in Composite Matrices

August 1, 1998

Author(s)

Joannie W. Chin, Tinh Nguyen, K Aouadi

In recent years, the use of fiber-reinforced polymer composites in civil infrastructure has been promoted as a solution to the deterioration of bridges, buildings, and other structures composed of traditional materials, such as steel, concrete, and wood

Analysis of the Single-Fiber Fragmentation Test

January 1, 1998

Author(s)

Tinh Nguyen, Joannie W. Chin, Tze-Jer Chuang, S Lee

An analysis of the single-fiber fragmentation test was investigated. An approximate solution for the stress fields of a fiber embedded in a polymer matrix of different elastic moduli was obtained by the Eshelby method. The fiber was modeled as a prolate