Dissertation/Thesis Abstract

Mechanical and Surface Properties of Technical and Single Flax Fiber in Micro and Nano Scale
by Ahmed, Shabbir, M.S., North Dakota State University, 2017, 168; 10604844
Abstract (Summary)

The continued search for sustainable and eco-friendly materials led to the integration of bio-fibers as the reinforcement in composite materials. However, a wide variation in their mechanical properties poses a considerable challenge for their incorporation in load bearing and structural bio-composite materials. In this thesis, a rigorous experimental investigation is performed for quantifying this variation in mechanical properties of flax fiber such as ultimate strength, ultimate strain, and elastic modulus. The effect of stalk diameter and variety on strength and strain was investigated on a statistical basis. Probability distribution models were proposed for predicting the probability of failure on a given strength. A dynamic in-situ failure analysis was performed on technical flax fibers with the help of scanning electron microscopy (SEM) to investigate the micro and nanoscale failure behavior. A reliable measurement method of surface energy of a single flax fiber was proposed and performed by atomic force microscopy (AFM).

Indexing (document details)
Advisor: Ulven, Chad Andrew
Commitee: Jiang, Long, Pryor, Scott, Wang, Xinnan
School: North Dakota State University
Department: Mechanical Engineering
School Location: United States -- North Dakota
Source: MAI 56/06M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Mechanical engineering
Keywords: Atomic force microscopy, Failure analysis, Flax fiber, Single and technical fiber, Statistical analysis, Surface energy
Publication Number: 10604844
ISBN: 978-0-355-19875-1
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