The Effects of Fiber Orientation and Volume Fraction of Fiber on Mechanical Properties of Additively Manufactured Composite Material

A thesis published by Conerstone : A Collection of Scholarly and Creative Works for Minnesota State University, Mankato.

Additive manufacturing (AM) also known as 3D printing has tremendous advancements in récent days with a vast number of applications in industrial, automotive, architecture, consumer projects, fashion, toys, food, art, etc. Composite materials are widely used in structures with weight as a critical factor especially in aerospace industry. Recently, additive manufacturing technology, a rapidly growing innovative technology, has gained lot of importance in making composite materials. The properties of composite materials depend upon the properties of constituent’s matrix and fiber. There is lot of research on effect of fiber orientation on mechanical properties of composite materials made using conventional manufacturing methods. It will be interesting and relevant to study the relationship between the fiber orientation and fiber volume with mechanical properties of additively manufactured composite materials. This thesis work presents experimental investigation of mechanical behavior like tensile strength and fatigue life with variation in fiber orientation and fiber volume fraction of 3D printed composite materials. The aim is to study the best combination of volume fraction of fiber and fiber orientation that has better fatigue strength for additive manufactured composite materials. Using this study, they can decide the type of orientation and volume percent for desired properties. This study also finds the range of fatigue limits of 3d printed composite materials .

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Publicités

FAILURE ANALYSIS USING MICROFOCUS X-RAY IMAGING

Citation

Failure analysis using microfocus X-ray imaging

Auteur(s) / Author(s)

BOSSI R. H. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Boeing Phantom Works, Seattle, WA, ETATS-UNIS

Résumé / Abstract

Failure analysis is an essential element of all engineered products. The goal of failure analysis is the understanding of the root causes of any undesirable effects. Microfocus X-ray imaging (radioscopy and computed tomography) offers detailed information on the internal assembly and material condition of objects under failure analysis investigation. Using advanced systems for the acquisition of radioscopic and computed tomography (CT) images, failure analysis investigations are improved in technical accuracy at a reduced flow time and cost over alternative approaches. A versatile microfocus radioscopic system with CT capability has been implemented successfully as a standard tool in the Boeing Phantom Works Failure Analysis Laboratory. Using this tool, studies of electronic, electromechanical, and composite material items have been performed. Such a system can pay for itself within two years through higher productivity of the laboratory, increased laboratory value to the company, and resolution of critical problems whose worth far exceeds the value of the equipment.

Revue / Journal Title

Journal of testing and evaluation    ISSN  0090-3973   CODEN JTEVAB

Source / Source

Congrès
ASTM Symposium on Exterior Insulation and Finish Systems (EIFS): Innovations and Solutions to Industry Challenges No3
1999, vol. 27, no 2, pp. 150-163 (12 ref.), pp. 137-142

Langue / Language

Anglais

Editeur / Publisher

American Society for Testing and Materials, West Conshohocken, PA, ETATS-UNIS  (1973) (Revue)