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Author :
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (317 download)
Download or read book Determination of Elastic Moduli of Fiber-Resin Composites Using an Impulse Excitation Technique written by and published by . This book was released on 1996 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : ASTM Committee D-30 on High Modulus Fibers and Their Composites
Publisher : ASTM International
ISBN 13 : 9780803107014
Total Pages : 428 pages
Book Rating : 4.1/5 (7 download)
Download or read book Analysis of the Test Methods for High Modulus Fibers and Composites written by ASTM Committee D-30 on High Modulus Fibers and Their Composites and published by ASTM International. This book was released on 1973 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gerald Pickett
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (227 download)
Download or read book Analytical Procedures for Predicting the Mechanical Properties of Fiber Reinforced Composites written by Gerald Pickett and published by . This book was released on 1965 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Work previously reported on the development of procedures for the calculation of the elastic properties of and stresses in reinforced composite materials is continued. Results are reported for both the hexagonal and the rectangular array of fibers. Results on the elastic properties of and stresses in laminated plates and cylindrical shells are also reported.
Author :
Publisher : ASTM International
ISBN 13 :
Total Pages : 414 pages
Book Rating : 4./5 ( download)
Download or read book Analysis of the Test Methods for High Modulus Fibers and Composites written by and published by ASTM International. This book was released on 1973 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Elizabeth R. C. Marques
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (317 download)
Download or read book Ultrasonic Determination of the Elastic Constants of the Stiffness Matrix for Unidirectional Fiberglass Epoxy Composites written by Elizabeth R. C. Marques and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : CT. Sun
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (125 download)
Download or read book Effects of Fiber Length on Elastic Moduli of Randomly-Oriented Chopped-Fiber Composites written by CT. Sun and published by . This book was released on 1979 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a composite-cylinder model with a short cylindrical fiber embedded in the center of a cylindrical matrix, the longitudinal Young's modulus and major Poisson's ratio of a unidirectional, short-fiber composite are found in terms of the fiber volume fraction and the tip-to-tip spacing of the fibers. The expressions obtained are then modified to account for the influence of volume fraction and aspect ratio of the fibers. These results, together with Christensen and Waals' normalized expressions, are used to calculate the Young's modulus and Poisson's ratio of a randomly-oriented chopped-fiber composite in terms of the fiber volume fraction and its aspect ratio. The theory developed is then applied to examine numerically the effects of fiber length on the Young's modulus and Poisson's ratio of short glass-fiber/polyester-resin composites. The results show that the Young's modulus of both unidirectional and randomly-oriented fiber composites are strongly dependent on the fiber length; so is the Poisson's ratio, though to a lesser degree.
Author : Adham El-Newihy
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (119 download)
Download or read book Application of Impact Resonance Method for Evaluation of the Dynamic Elastic Properties of Polypropylene Fiber Reinforced Concrete written by Adham El-Newihy and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: For evaluation and quality control of concrete structures, the impact resonant frequency method is widely accepted for monitoring structure in-service properties and detecting structural damage. Common defects in concrete include consolidation problems during casting and development of micro-cracks during stages of hydration. Monitoring the dynamic characteristics of concrete plays an essential role in detecting real-time and early stages of deterioration. Ample research is focused on detecting large defects, however not much information is available on detection of minor defects of composites like fiber reinforced concrete. Change of elastic behavior when Polypropylene fibers are added as reinforcement is investigated. Destructive tests on structures in-service are not always feasible thus leaving non-destructive condition assessment as the only option. Amongst the various non-destructive tests available, vibrational tests provide a practical method to predict the dynamic moduli of structures (dynamic modulus of elasticity, dynamic modulus of rigidity and dynamic Poisson's ratio). The objective of this research is to assess the dynamic elastic properties of Polypropylene Fiber Reinforced Concrete (PFRC) in correlation with induced cracks and common consolidation defects using a lab developed non-destructive testing method that relies on impulse excitation and stress wave propagation to measure changes in the resonant frequency when polypropylene fibers are added to concrete. In the experimental program, two fiber sizes, macro and micro, with various volume contents have been used for casting PFRC cylinders and prisms. Fundamental resonant frequencies were measured for all cylinders and prisms in the transverse and longitudinal directions. All measured frequencies are directly related to the low-strain dynamic modulus of elasticity. In addition, PFRC prisms were used to investigate the relationship between the dynamic modulus of elasticity and modulus of rigidity. Several batches of similar mixtures are used to investigate different parameters that affect the resonant frequency of concrete such as the water to cement ratio, curing condition and age. Results indicated a decrease in the resonant frequency and elastic properties with an increase of the fiber content or length. Micro fibers showed higher dynamic elastic moduli when compared to macro fibers of the same mixture under saturated curing conditions. Post-cracked PFRC cylinders and flexural fractured prisms retained some of the resonant frequency with macro fibers exhibiting better elastic recovery when cracked.
Author : Valentina Lopresto
Publisher : Springer Nature
ISBN 13 : 3031285476
Total Pages : 422 pages
Book Rating : 4.0/5 (312 download)
Download or read book Dynamic Response and Failure of Composite Materials written by Valentina Lopresto and published by Springer Nature. This book was released on 2023-04-24 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the latest advances and innovations in the field of dynamic loads and testing of composite materials and sandwich structures, as presented by international researchers and engineers at the International Symposium on Dynamic Response and Failure of Composite Materials (DRAF), held in Ischia, Italy, on June 21–24, 2022. Contributions include a wide range of topics such as low and high velocity impacts, smart composites, hull slamming, shock and blast, hail and bird impact, damage resistance and tolerance, failure mechanisms, composite structures, delamination and fractures, progressive damage modeling, micromechanics, ballistic impacts, ceramic and CMC, auxetic materials and structures, additive manufacturing, crashworthiness, green composites, and structural health monitoring.
Author : Mikhail S. Blanter
Publisher : Springer Science & Business Media
ISBN 13 : 3540687580
Total Pages : 553 pages
Book Rating : 4.5/5 (46 download)
Download or read book Internal Friction in Metallic Materials written by Mikhail S. Blanter and published by Springer Science & Business Media. This book was released on 2007-05-17 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a unique collection of experimental data in the field of internal friction, anelastic relaxation, and damping properties of metallic materials. It reviews virtually all anelastic relaxation phenomena ever published. The reader is also supplied with explanations of the basic physical mechanisms of internal friction, a summary of typical effects for different groups of metals, and more than 2000 references to original papers.
Author : Chao-Hsing Chen
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (89 download)
Download or read book Mechanical Properties of Fiber Reinforced Composites and of Perforated Solids written by Chao-Hsing Chen and published by . This book was released on 1965 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce H. King
Publisher :
ISBN 13 :
Total Pages : 484 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Influence of Architecture on the Elasticity and Strength of Si3N4/BN Fibrous-monolithic Ceramic Laminates written by Bruce H. King and published by . This book was released on 1997 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : GD. Dean
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (125 download)
Download or read book Determination of the Mechanical Properties of Fiber Composites by Ultrasonic Techniques written by GD. Dean and published by . This book was released on 1973 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: A technique is described for the determination of the elastic constants of a composite specimen by measuring, in an immersion tank, the velocities of ultrasonic waves propagating in various directions in the specimen. The theoretical basis of the method, the restrictions on specimen geometry, and possible sources of inaccuracy in the measurement and interpretation of data, are all discussed. Typical results are illustrated by data for a high modulus carbon fiber reinforced epoxy. A discussion is given of the use of ultrasonic techniques for material characterization. In particular, methods are discussed for identifying and quantifying specimen homogeneity, symmetry, degree of misorientation, and defect content. Extension of the techniques to the determination of viscoelastic properties, and the associated theoretical and practical problems, is also considered.
Author : HT. Hahn
Publisher :
ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (125 download)
Download or read book Simplified Formulas for Elastic Moduli of Unidirectional Continuous Fiber Composites written by HT. Hahn and published by . This book was released on 1980 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The elastic moduli of composites reinforced with continuous fibers depend on the elastic moduli of the constituent materials and on the geometry and spatial arrangement of fibers. The determination of the relationship between the composite properties and the constituent properties has been an area of extensive research. As a result, a large number of formulas are available for various combinations of geometry and distribution of fibers.
Author :
Publisher :
ISBN 13 :
Total Pages : 1104 pages
Book Rating : 4.3/5 (91 download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : ASM International. Handbook Committee
Publisher : ASM International
ISBN 13 : 0871702835
Total Pages : 1313 pages
Book Rating : 4.8/5 (717 download)
Download or read book Engineered Materials Handbook, Desk Edition written by ASM International. Handbook Committee and published by ASM International. This book was released on 1995-11-01 with total page 1313 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference on the properties, selection, processing, and applications of the most widely used nonmetallic engineering materials. Section 1, General Information and Data, contains information applicable both to polymers and to ceramics and glasses. It includes an illustrated glossary, a collection of engineering tables and data, and a guide to materials selection. Sections 2 through 7 focus on polymeric materials--plastics, elastomers, polymer-matrix composites, adhesives, and sealants--with the information largely updated and expanded from the first three volumes of the Engineered Materials Handbook. Ceramics and glasses are covered in Sections 8 through 12, also with updated and expanded information. Annotation copyright by Book News, Inc., Portland, OR
Author : Y. Flom
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (317 download)
Download or read book Evaluation of Engineering Properties of AL-Li Alloy X2096-T8A3 Extrusion Products written by Y. Flom and published by . This book was released on 1999 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tadeusz Uhl
Publisher : Springer
ISBN 13 : 3030201317
Total Pages : 4248 pages
Book Rating : 4.0/5 (32 download)
Download or read book Advances in Mechanism and Machine Science written by Tadeusz Uhl and published by Springer. This book was released on 2019-06-13 with total page 4248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the proceedings of the 15th IFToMM World Congress, which was held in Krakow, Poland, from June 30 to July 4, 2019. Having been organized every four years since 1965, the Congress represents the world’s largest scientific event on mechanism and machine science (MMS). The contributions cover an extremely diverse range of topics, including biomechanical engineering, computational kinematics, design methodologies, dynamics of machinery, multibody dynamics, gearing and transmissions, history of MMS, linkage and mechanical controls, robotics and mechatronics, micro-mechanisms, reliability of machines and mechanisms, rotor dynamics, standardization of terminology, sustainable energy systems, transportation machinery, tribology and vibration. Selected by means of a rigorous international peer-review process, they highlight numerous exciting advances and ideas that will spur novel research directions and foster new multidisciplinary collaborations.
