EDA RESEARCH

1. Analysis of the Effect
of Parameters on
Fracture Toughness
of Hemp Fiber
Reinforced Hybrid
Composites Using
the ANOVA Method
30 July
H. K. Madhusudhana, M. Prasanna Kumar, Arun Y.
Patil, R. Keshavamurthy, T. M. Yunus Khan, Irfan
Anjum Badruddin, and Sarfaraz Kamangar
School of Mechanical Engineering, KLE
Technological University, Hubballi 580031, India
Proponents
Received: 20 August 2021 | Accepted: 29 August
2021 | Published: 6 September 2021

2. Presented by:
Buenviaje, Khen Moises
Columna, Patricia Aileen
Monterey, Delfin IV
Tiu, Renalyn Ros
Villanueva, Laurice Joyce

3. Table of contents
Abstract &
Introduction
Research
Question
Methodology Results and
Discussion
Statistical
Treatment
Conclusion
01
04
02
05
03
06

4. Abstract &
Introduction
01

5. • Global warming
• Hemp fiber as alternative with only 360
kg/tonne of CO2 emissions
• This paper presents an experimental study
of the fracture toughness behavior of hemp-
reinforced hybrid composites (HRHC).
• Taguchi technique
• Use of different filler combination with hemp
fiber and epoxy
Abstract:

6. • Orthogonal array
• Minitab software
• ANOVA and main effects plot
Abstract:
Materials Used
• Fracture toughness increases with a
decrease in thickness.
Observation:

7. Natural fiber composites qualities:
• Low density
• Low cost
• Vast availability
• Biodegradability
• High stiffness and strength that when added
to polymer matrix, the tensile properties of
the composites are improved
Introduction:

8. • Flax
• Matrix and fiber
Uses of composites reinforced with natural fibers:
• Aerospace
• Automobile
• Building
• Packaging industries
• Considered as better options for structural
members if they show enormous strength when
subjected to fracture loading
Introduction:

9. • Crack tip analysis
• Stress Intensity Factor
Use of fracture toughness values:
• Performance evaluation
• Material characterization
• Quality assurance
Introduction:

10. Research
Question
02

11. 1. What is the best combination of hemp fiber,
filler, and resin content is suitable for
producing natural fiber composite with
maximum fracture toughness?
2. Which factor among thickness, resin content,
and fiber content is the most significant in
improving the fracture toughness of the
natural fiber composite?
Research Questions:

12. Methodology
03

13. 3.1 Materials:
Figure 1.1
Coconut Shell
Powder
Figure 1.2
Banana Fiber

14. 3.1 Materials:
Figure 1.3
Sawdust
Figure 1.4
Hemp Fiber

15. Table 1: Details of the materials suppliers.

16. Table 2: Properties of Epoxy

17. This process requires only the primary
resources, and preparation is also simple, as
shown in Figure 2

18. The methodology of the present research work
is explained in Figure 3.

19. Figure 4. The Single-Edge Notched Bending
(SENB) test specimen
Experiments

20. Figure 5. The fabricated composite laminate and
fracture test specimens
Experiments

21. Table 3: Process parameters and levels
Experiments

22. Table 4: L9 Orthogonal Array
Experiments

23. Statistical
Treatment
04

24. Taguchi
Method
Statistical Treatment
Analysis of
Variance
(ANOVA)

25. Results and
Discussion
05

26. Fracture Toughness
Results and Discussion

27. Three-point bending test results
Results and Discussion

28. Analysis of Variance for S/N
Results and Discussion

29. Response table for signal to noise ratios—larger
is better
Results and Discussion

30. Maximum fracture toughness is obtained for the combination of 8
mm thickness, 60% resin content, and coconut shell powder as filler.
Results and Discussion

31. 4.1. Fracture Toughness-3 Point Bending Test
(Load v/s Displacement Graphs)
Results and Discussion

32. 4.1. Fracture Toughness-3 Point Bending Test
(Load v/s Displacement Graphs)
Results and Discussion

33. 4.1. Fracture Toughness-3 Point Bending Test
(Load v/s Displacement Graphs)
Results and Discussion

34. 4.2 Compliance v/s Crack Length
Results and Discussion

35. 4.3 Fracture Toughness v/s Thickness Graph
Results and Discussion

36. Conclusion
06

37. • The use of natural fibers is beneficial, as carbon fibers are
harmful to the environment.
• The maximum fracture toughness value is obtained for the
composite of 8 mm thickness, containing 35% of hemp fiber
with coconut shell powder as the filler.
• An L9 orthogonal array is used as it is more suitable for
analyzing the effects of three different factors at three
different levels.
• The Taguchi technique of the L9 orthogonal array helps in
the determination of the optimum levels of the tests
conducted.
Conclusions:

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41. Thanks!
BUENVIAJE | COLUMNA | MONTEREY
TIU | VILLANUEVA