Optimization of Process Parameters of Fracture Toughness Using Simulation Technique Considering Aluminum–Graphite Composites

Begum, Yasmin; Bharath, K. N.; Doddamani, Saleemsab; Rajesh, A.; Kaleemulla, K. Mohamed

doi:10.1007/s12666-020-02113-5

Cited by 18 publications

(8 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is obvious that the bigger particle size of reinforcement causes weak bonding between matrix and reinforcement hence reduces the load carrying capacity which in turn decreases fracture toughness of the material. The ANOVA analysis reveals that the a/W ratio [25] followed by the material composition will influence more on the fracture toughness than grain size of the SiC.…”

Section: Discussionmentioning

confidence: 99%

“…The procedure given in the Taguchi's design of experiments is to examine the various parameters and their effect on the mean and variance. From the results of the Taguchi's design of experiments, ANOVA (analysis of variance) [25] has been carried out, to optimize the performance behavior, and to choose the new process parameter. In the current work, optimizing the parameters of the fracture toughness tests is done utilizing the Taguchi's technique.…”

Section: Design Of Experimentationmentioning

confidence: 99%

See 1 more Smart Citation

Taguchi’s method of optimization of fracture toughness parameters of Al-SiCp composite using compact tension specimens

Guddhur¹,

Naganna

Doddamani

2021

Int. J. Optim. Control, Theor. Appl. (IJOCTA)

Self Cite

View full text Add to dashboard Cite

The objective of this work is to investigate the process parameters which influence the fracture toughness of aluminum-silicon carbide particulate composite prepared using the stir casting technique. The Taguchi’s design of experiments is conducted to analyze the process parameters. Three parameters considered are composition of material, grain size and a/W ratio. From the Taguchi’s analysis, on compact tension specimens, aluminum 6061 reinforced with 9 wt% of the silicon carbide particles composite and a/W ratio of 0.45 are considered to be optimized parameters. Taguchi's technique result shows that the increment in the a/W ratio causes decrement in the load carrying capacity of the composite. Whereas the fine grain size of silicon carbide have better toughness values. From the ANOVA outcomes it is clear that the composition and a/W ratio of the geometry has more influence on the fracture toughness than the grain size of reinforcement.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Design Of Experimentationmentioning

confidence: 99%

Taguchi’s method of optimization of fracture toughness parameters of Al-SiCp composite using compact tension specimens

Guddhur¹,

Naganna

Doddamani

2021

Int. J. Optim. Control, Theor. Appl. (IJOCTA)

Self Cite

View full text Add to dashboard Cite

show abstract

“…Since these approaches determine the global quantities far from crack, the singularity can be ignored. The finite element model was built using PLANE182 element [31], for the crack analysis of the aluminum-graphite alloy.…”

Section: Methodsmentioning

confidence: 99%

Fracture analysis of AA6061-graphite composite for the application of helicopter rotor blade

Doddamani

Wang²,

Jinnah³

et al. 2021

Frattura Ed Integrità Strutturale

Self Cite

View full text Add to dashboard Cite

The main objective of the work is to study the fracture behavior of AA6061-graphite material using both experimental technique and finite element simulation by considering helicopter rotor blade as a case study. From the case study, it has been observed that the helicopter rotor blade, made of AA6061, has been failed at the threaded portion of the hole. Experimental fracture toughness is carried out using the compact tension specimens as per ASTM standard testing procedure. Modeling of compact tension specimens and the threaded portion of the bolt hole was utilized to analyze the fracture toughness using a simulation tool. From the results and the comparison, it is recommended to use AA6061-9wt% graphite material as a replacement of AA6061 in the application of main rotor blades of the helicopter.

show abstract

“…Hence, the concentration keypoint at the crack tip has been created. The fracture toughness KI was calculated during finite element analysis using the KCALC command as [26]. Geometry, finite element mesh and symmetry boundary conditions for cases (SECP), (CCP), and (DECP), respectively are shown in Figs.…”

Section: Methodsmentioning

confidence: 99%

Mode I stress intensity factor with various crack types

Soliman

2021

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

Presence of cracks in mechanical components needs much attention, where the stress field is affected by cracks and the propagation of cracks may be occurred causing the damage. The objective of this paper is to present an investigation of crack type effect on crack severity in a finite plate. Three cases of cracked plate with three different types of cracks are assumed in this work, i.e., single edge crack, center crack and double edge crack. 2D numerical models of cases of cracked plate are established in finite element analysis (FEA), ANSYS software by adopting PLANE 183 element. Values of FEA mode I stress intensity factor SIF and Von-Mises stress at crack apex are determined for cases of cracked plate under tensile stress with different values. To identify the crack severity, the comparison of FEA results for different cracked cases is made. The comparison showed that, single edge cracked plate (SECP) has the maximum values of mode I SIF and Von-Mises stress at crack apex, i.e. the greatest crack severity is considered. Also, values of FEA Von-Mises stress at crack apex for center cracked plate (CCP) are moderate and for double edge cracked plate (DECP) are the minimum. Besides, in case of high crack lengths, it is found that, FEA results of mode I SIF in case of (CCP) are higher than those of in case of (DECP). Consequently, crack severity is considered as moderate in case of (CCP) and the minimum in case of (DECP). Empirical formulas are used to approximately estimate mode I SIF for all the case studies of cracked plate in this study and the results are compared to those of FEA. A good agreement between analytical and FEA results has been showed by this comparison.

show abstract

Optimization of Process Parameters of Fracture Toughness Using Simulation Technique Considering Aluminum–Graphite Composites

Cited by 18 publications

References 12 publications

Taguchi’s method of optimization of fracture toughness parameters of Al-SiCp composite using compact tension specimens

Taguchi’s method of optimization of fracture toughness parameters of Al-SiCp composite using compact tension specimens

Fracture analysis of AA6061-graphite composite for the application of helicopter rotor blade

Mode I stress intensity factor with various crack types

Contact Info

Product

Resources

About