Date of Award

Summer 1992

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Mechanical & Aerospace Engineering

Program/Concentration

Engineering Mechanics

Committee Director

Ramamurthy Prabhakaran

Committee Member

Dawn C. Jegley

Committee Member

Yozo Mikata

Call Number for Print

Special Collections; LD4331.E57R61

Abstract

The low-velocity impact of composite laminates can induce high transverse shear strains, resulting in severe damage within the laminate. This type of damage may be studied in a quasi-static manner by use of a multi-span beam shear test in five-point bending configuration. A five-point bending arrangement induces high transverse shear strains in sections of the laminate, causing failures, such as intraply cracks and delaminations, that are similar to those caused by low-velocity impact. Stress distributions in the laminate can be calculated using a potential energy approach, and these stress distributions can be correlated with failure locations in the five-point bending configuration. Results of low-velocity impact tests, five-point bending tests, and theoretical analysis are presented in the present paper.

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DOI

10.25777/0vke-1990

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