Indian Journal of Engineering & Materials Sciences

Open Access Open Access  Restricted Access Subscription Access

Hot Deformation Behavior and Strain Rate Sensitivity of α+β Brass Sheet by Uniaxial Material Constitutive Equations


Affiliations
1 Department of Mechanical Engineering, Koneru Lakshmaiah Education Foundation, Guntur 522 302, India
 

The present work proposes a systematic procedure for evaluation of high temperatures deformation and formability of α+β Brass undergoing the uniaxial tensile test conditions. Firstly, uniaxial tensile tests were conducted on Universal Testing Machine (UTM) with loading capacity of 100 KN at temperature of 773K, 873K and 973K with a quasi-static strain rates of 0.001 s<sup>-1</sup>, 0.01 s<sup>-1</sup> and 0.1 s<sup>-1</sup>. Hot tensile flow stress behaviors have been affected significantly by test temperatures and strain rates for Brass. Drop-in yield and ultimate tensile strength have been observed at approximately 58 % and 68 % with a rise in test temperature from 773 K to 973 K. Around 30% improvement has been observed in % elongation with rise in test temperature. Further, flow stress has been predicted by most popular Johnson Cook (JC) uniaxial constitutive model at wide range of temperatures (773K, 873K and 973K) and strain rates (0.001 s<sup>-1</sup>,0.01 s<sup>-1</sup> and 0.1 s<sup>-1</sup>). Further, yield loci have been plotted at various temperatures using Hill 1948 and Barlat 1989 yield function. Barlat 1989 has followed experimental results correctly in all test temperatures.

Keywords

Johnson-Cook Model, Tensile Test, Yield Function.
User
Notifications
Font Size

  • Wright RN, Wire Technol Process Eng Metall, (2016).

  • Ratnayaka DD, Brandt MJ, & Johnson KM, Water Supply, (2009).

  • Green DE, Neale KW, MacEwen SR, Makinde A, & Perrin R, Int J Plast, 20(2004) 1677.

  • Gupta K, Jain NK, & Laubscher R, Adv Gear Manuf Finishing Classical Mod Processes, (2017).

  • Rehren T, J Archoelogical Sci, 26(1999) 1083.

  • Singh VD, Mahalle G, Kotkunde N, Singh SK, & Hussain MM, Adv Mater Process Technol, (2021) 1.

  • El-Danaf E, Kalidindi SR, Doherty RD, & Necker C, Acta Mater,48(2000) 2665.

  • Kalidindi SR, Int J Plast, 17(2001) 837.

  • Fan R, Magargee J, Hu P,& Cao J, Mater Sci Eng A, 574(2013) 218.

  • Duggan BJ, Hatherly M, Hutchinson WB, & Wakefield PT, Met Sci, 12(1978) 343.

  • Asgari S, El-Danaf E, Kalidindi SR & Doherty R.D, Metall Mater Trans A Phys Metall Mater Sci, 28(1997) 1781.

  • Sakharova NA, Fernandes JV & Vieira MF, Mater Sci Eng A507(2009) 13.

  • Mahalle G, Kotkunde N, Shah R, Gupta AK, & Singh SK, J Phys Conf Ser, 1063 (2018) 1.

  • Mahalle G, Kotkunde N, Kumar Gupta A, & Kumar Singh S, Mater Today Proc, 5 (2018) 18016.

  • Mohammed AAS, El-Danaf EA, & Radwan AKA, Mater Sci Eng A, 457 (2007) 373.

  • Xiao YH, Guo C, & Guo XY, Mater Sci Eng, A528 (2011) 6510.

  • Padmavardhani D, & Prasad YVRK, Metall Trans A, 22 (1991) 2993.

  • Fang XT, He GZ, Zheng C, Ma XL, Kaoumi D, Li YS, & Zhu YT, Acta Mater, 186 (2020) 644.

  • Dieter G.E, Mech Metall SI Metr Edition, (2011).

  • ASTM 517-00:2010 Stand Test Method for Plastic Strain Ratio r for Sheet Metal. ASTM B. Stand, (2010) 1.

  • Jata K V, Hopkins AK, & Rioja RJ, Mater Sci Forum, 217 (1996) 647.

  • Wu YT, & Koo CH, Scr Mater, 38 (1997) 267.

  • Johnson G, & Cook W, Eng Fract Mech, 21 (1985) 31.

  • Mahalle G, Kotkunde N, Gupta AK, Sujith R, Singh SK, & Lin YC, J Mater Eng Perform, 28 (2019) 3321.

  • Hill R, J Mech Phys Solids, 38 (1990) 405.

  • Mahalle G, Salunke O, Kotkunde N, Gupta AK, & Singh SK, In ASME Int Mech Eng Congress Exposition, (2019) 1.

  • Barlat F, & Lian K, Int J Plast, 5 (1989) 51.


Abstract Views: 66

PDF Views: 50




  • Hot Deformation Behavior and Strain Rate Sensitivity of α+β Brass Sheet by Uniaxial Material Constitutive Equations

Abstract Views: 66  |  PDF Views: 50

Authors

Bandhavi Challa
Department of Mechanical Engineering, Koneru Lakshmaiah Education Foundation, Guntur 522 302, India
Srinivasa Rao Seeram
Department of Mechanical Engineering, Koneru Lakshmaiah Education Foundation, Guntur 522 302, India

Abstract


The present work proposes a systematic procedure for evaluation of high temperatures deformation and formability of α+β Brass undergoing the uniaxial tensile test conditions. Firstly, uniaxial tensile tests were conducted on Universal Testing Machine (UTM) with loading capacity of 100 KN at temperature of 773K, 873K and 973K with a quasi-static strain rates of 0.001 s<sup>-1</sup>, 0.01 s<sup>-1</sup> and 0.1 s<sup>-1</sup>. Hot tensile flow stress behaviors have been affected significantly by test temperatures and strain rates for Brass. Drop-in yield and ultimate tensile strength have been observed at approximately 58 % and 68 % with a rise in test temperature from 773 K to 973 K. Around 30% improvement has been observed in % elongation with rise in test temperature. Further, flow stress has been predicted by most popular Johnson Cook (JC) uniaxial constitutive model at wide range of temperatures (773K, 873K and 973K) and strain rates (0.001 s<sup>-1</sup>,0.01 s<sup>-1</sup> and 0.1 s<sup>-1</sup>). Further, yield loci have been plotted at various temperatures using Hill 1948 and Barlat 1989 yield function. Barlat 1989 has followed experimental results correctly in all test temperatures.

Keywords


Johnson-Cook Model, Tensile Test, Yield Function.

References