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Search Publications by: Gale A. Holmes (Fed)

Displaying 151 - 175 of 250

AN ANALYSIS PROCEDURE FOR QUANTIFYING THE FRAGMENTATION BEHAVIOR OF 2-D MULTI-FIBER ARRAYS

May 24, 2007

Author(s)

Jae Hyun Kim, Walter G. McDonough, Gale A. Holmes

Dynamic Mechanical Analysis of the Glassy State Response of a Sub-Tg Annealed Model Epoxy Network

May 7, 2007

Author(s)

Gale A. Holmes

Using dynamic mechanical analyzers the relaxation behavior of a loosely cross-linked model epoxy resin was investigated before and after room temperature aging. Preliminary results indicate a stiffening of the storage moduli occurs below 50 C, the b

A Methodology for Detecting Interfacial Debonding in Clay/Epoxy Nanocomposites

July 1, 2006

Author(s)

Jae Hyun Kim, Gale A. Holmes, Chad R. Snyder

Ballistic Fibers: A Review of the Thermal, Ultraviolet, and Hydrolytic Stability of the Benzoxazole Ring Structure

April 10, 2006

Author(s)

Gale A. Holmes, Kirk D. Rice, Chad R. Snyder

Investigating the Environmental Stability of Ballistic Fibers Using Model Compounds and Mass Spectrometry

September 1, 2005

Author(s)

Kathleen M. Flynn, William E. Wallace, Charles M. Guttman, Gale A. Holmes, Mark Arnould

Metrologies and predictive models to test and predict the long-term reliability of polymers used in ballistic resistant armor are presented.

Study on the Interfacial Properties of Two-Dimensionally Arranged Glass Fiber/Epoxy Resin Model Composites

June 5, 2005

Author(s)

Chang K. Moon, Gale A. Holmes, Walter G. McDonough

The effect of interfiber distance on the interfacial properties in two dimensional multi-E-glass fiber/epoxy resin composites has been investigated using fragmentation test. In addition, the effect of the fiber surface treatment on the interfacial

A Simple Methodology for Observing Mechanical Properties of NanocompositePart 1:Interfacial Properties in an Epoxy Clay Nanocomposites

February 20, 2004

Author(s)

Jae Hyun Kim, Gale A. Holmes

Research by the Pinnavaia Group and M lhaupt et al. on elastomeric polyurethane and elastomeric epoxy clay hybrid nanocomposites have shown that the tensile strength, tensile modulus and strain-to-failure of these nanocomposites are increased relative to

A Simple Methodology for Observing Mechanical Properties of Nanocomposites. Part 2: Investigation of Interfacial Properties in E-Glass Fiber Model Composites

February 20, 2004

Author(s)

Jae Hyun Kim, Gale A. Holmes, Chad R. Snyder

The fiber/matrix interfacial shear strength (IFSS) and the fiber/matrix interphase fracture toughness are critical parameters that control failure initiation and crack propagation in composites. In spite of this importance, most IFSS test methods ignore

Interaction Between Matrix Cracks in E-Glass/Epoxy 2 Dimensional Multi-Fiber Array Model Composites

November 15, 2003

Author(s)

Gale A. Holmes, Walter G. McDonough, Joy P. Dunkers, Charles C. Han

The interaction between fiber breaks in an E-Glass/Epoxy 2-D multifiber array that form matrix cracks during fiber fracture is presented. In contrast to the theoretical predictions of Hedgepeth and van Dyke (1967) the failure sites in fibers adjacent to a

The Influence of Silane Coupling Agent Composition on the Surface Characterization of Fiber and on Fiber-Matrix Interfacial Shear Strength

July 1, 2003

Author(s)

E Feresenbet, Gale A. Holmes, D T. Raghavan

Epoxy resins are widely used as the matrix material for fiber reinforced composites in aircrafts, automobiles, ships and housing. Most of the reinforcement in epoxy composite is glass fiber so as to lower the cost. Studies in the past have suggested that

Using Self-Assembled Monolayer Technology to Probe the Mechanical Response of the Fiber Interphase-Matrix Interphase Interface

June 1, 2003

Author(s)

Gale A. Holmes, E Feresenbet, D T. Raghavan

In this paper, a brief review of the fiber-matrix interphase/interface region is given for carbon- and glass-fiber composites. The interphase/interface region is discussed interms of the fiber interphase (FI), the matrix (MI), and the FI-MI interface as

Interaction between Matrix Cracks in E-Glass/Epoxy Two-Dimensional Multi-Fiber-Array Model Composites

January 1, 2003

Author(s)

Gale A. Holmes, Walter G. McDonough, Joy Dunkers, Charles C. Han

Round Robin Assessment of the Single Fiber Fragmentation Test

October 21, 2002

Author(s)

M J. Rich, L T. Drzal, Donald L. Hunston, Gale A. Holmes, Walter G. McDonough

The Versailles Project on Advanced Materials and Standards (VAMAS) was established following an economic summit meeting in 1982 held at Versailles by the Heads of State of the seven leading industrial nations and representatives from the Commission of the