263
9
8. Calculate the flexural strength and modulus of a glass fibrereinforced PP composite in a 3-point bend test. The thickness,
length, and width of the sample, as well as deflection and load
are 3 mm, 60 mm, 10 mm, 3 mm, and 20 KN, respectively.
9. Explain the better mechanical performance of a carbon fibrereinforced epoxy composite over a glass fibre- reinforced PP
composite on the basis of their structure–property relationship.
10. What is the nondestructive technology used to estimate volume fractions?
11. Why are mechanical waves, such as ultrasound, used in NDT for
detection of flaws in composite?
12. Why do you not use electromagnetic waves for detection of
delamination or flaws in a composite?
References
1. Patel, G.N., Chance, R.R., Turi, E.A., and Khanna, Y.P., Journal of American
Chemical Society, 100, 1978, p. 6644.
2. Seigmann, A. and Turi, E.A., Journal of Macromolecule Science-Physics,
B10(4), 1974, p. 689.
3. Varma, I.K., Matrix resins for composites (seminar proceedings), “Development of resins moulding compounds and coupling agents for composite
industry,” IIT Delhi, New Delhi, March 12–14, 1984.
4. Shindé, S.L., and Goela, J.S., High Thermal Conductivity Materials, Springer,
2006.
5. Tsekmes, I.A., Kochetov, R., Morshuis, P.H.F., and Smit, J.J., Thermal Conductivity of Polymeric Composites: A Review, 2013 IEEE International Conference
on Solid Dielectrics, Bologna, Italy, June 30–July 4, 2013.
6. “Recent trends in polymers and their composites,” Proceedings of Seminar,
Department of Science and Technology, New Delhi, December 1986.
7. Raghavan, V., Materials Science and Engineering: A First Course, Third Edition,
Prentice Hall of India Private Ltd., 1989.
8. Rudge, A.W., Milne, K., Olver, A.D., and Knight, P., The Handbook of Antenna
Design (IEEE Electromagnetic Wave Series), London, Peter Peregrinus, 1986.
9. Composite Material, https://en. wikipedia. org/wiki/Composite_material.
10. Dwivedi, Mayank, Alam, Sarfaraz, Bhatnagar, Naresh, and Ghosh, Anup K.,
“Radar transparent glass fabric reinforced polyetherimide/Cloisite 30B
nanocomposites,” Polymers for Advanced Technologies, 22(12), 2011,
pp. 2166–72.
11. Tensile testing, Wikipedia.
12. Short Beam Shear, Intertek Plastics Technology Laboratories, http://www.
ptli. com/testlopedia/tests/Short_Beam_shear-D2344. asp.
13. Huang, Miinshiou, Jiang, Liang, Liaw, Peter K., Brooks, Charlie R., Seeley,
Rodger, and Klarstrom, Dwaine L., “Using Acoustic Emission in Fatigue and
Fracture Materials Research,” JOM, November 1998 (vol. 50, no. 11) Retrieved
2011-12-05.
14. Industrial Radiography, https://en. wikipedia. org/wiki/Industrial_radiography.
15. Aqualified, http://aqualified. com/services/ultrasound-shearwave-ndt/.
16. “Mechanics of materials and acoustic emission testing,” BAM, Federal
institute for Materials research and Testing, http://www. bam. de/en/kompetenzen/fachabteilungen/abteilung_5/fg53/fb53_werkstoffmechanik_
schallemissionspruefung. htm.
17. Ultrasonic Testing, https://en. wikipedia. org/wiki/Ultrasonic_testing
18. Eddy current methods, https://www. ikts. fraunhofer. de/en/departments/
electronics_microsystems/systems_for_testing_analysis/eddy_current_
methods. html.
References
9
8. Calculate the flexural strength and modulus of a glass fibrereinforced PP composite in a 3-point bend test. The thickness,
length, and width of the sample, as well as deflection and load
are 3 mm, 60 mm, 10 mm, 3 mm, and 20 KN, respectively.
9. Explain the better mechanical performance of a carbon fibrereinforced epoxy composite over a glass fibre- reinforced PP
composite on the basis of their structure–property relationship.
10. What is the nondestructive technology used to estimate volume fractions?
11. Why are mechanical waves, such as ultrasound, used in NDT for
detection of flaws in composite?
12. Why do you not use electromagnetic waves for detection of
delamination or flaws in a composite?
References
1. Patel, G.N., Chance, R.R., Turi, E.A., and Khanna, Y.P., Journal of American
Chemical Society, 100, 1978, p. 6644.
2. Seigmann, A. and Turi, E.A., Journal of Macromolecule Science-Physics,
B10(4), 1974, p. 689.
3. Varma, I.K., Matrix resins for composites (seminar proceedings), “Development of resins moulding compounds and coupling agents for composite
industry,” IIT Delhi, New Delhi, March 12–14, 1984.
4. Shindé, S.L., and Goela, J.S., High Thermal Conductivity Materials, Springer,
2006.
5. Tsekmes, I.A., Kochetov, R., Morshuis, P.H.F., and Smit, J.J., Thermal Conductivity of Polymeric Composites: A Review, 2013 IEEE International Conference
on Solid Dielectrics, Bologna, Italy, June 30–July 4, 2013.
6. “Recent trends in polymers and their composites,” Proceedings of Seminar,
Department of Science and Technology, New Delhi, December 1986.
7. Raghavan, V., Materials Science and Engineering: A First Course, Third Edition,
Prentice Hall of India Private Ltd., 1989.
8. Rudge, A.W., Milne, K., Olver, A.D., and Knight, P., The Handbook of Antenna
Design (IEEE Electromagnetic Wave Series), London, Peter Peregrinus, 1986.
9. Composite Material, https://en. wikipedia. org/wiki/Composite_material.
10. Dwivedi, Mayank, Alam, Sarfaraz, Bhatnagar, Naresh, and Ghosh, Anup K.,
“Radar transparent glass fabric reinforced polyetherimide/Cloisite 30B
nanocomposites,” Polymers for Advanced Technologies, 22(12), 2011,
pp. 2166–72.
11. Tensile testing, Wikipedia.
12. Short Beam Shear, Intertek Plastics Technology Laboratories, http://www.
ptli. com/testlopedia/tests/Short_Beam_shear-D2344. asp.
13. Huang, Miinshiou, Jiang, Liang, Liaw, Peter K., Brooks, Charlie R., Seeley,
Rodger, and Klarstrom, Dwaine L., “Using Acoustic Emission in Fatigue and
Fracture Materials Research,” JOM, November 1998 (vol. 50, no. 11) Retrieved
2011-12-05.
14. Industrial Radiography, https://en. wikipedia. org/wiki/Industrial_radiography.
15. Aqualified, http://aqualified. com/services/ultrasound-shearwave-ndt/.
16. “Mechanics of materials and acoustic emission testing,” BAM, Federal
institute for Materials research and Testing, http://www. bam. de/en/kompetenzen/fachabteilungen/abteilung_5/fg53/fb53_werkstoffmechanik_
schallemissionspruefung. htm.
17. Ultrasonic Testing, https://en. wikipedia. org/wiki/Ultrasonic_testing
18. Eddy current methods, https://www. ikts. fraunhofer. de/en/departments/
electronics_microsystems/systems_for_testing_analysis/eddy_current_
methods. html.
References