Structural Engineering and Mechanics

  • 제57권6호
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  • Pages.1015-1038
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  • 2016
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

An advanced criterion based on non-AFR for anisotropic sheet metals

  • Moayyedian, Farzad (Department of Mechanical Engineering, Eqbal Lahoori Institute of Higher Education (ELIHE)) ;
  • Kadkhodayan, Mehran (Department of Mechanical Engineering, Ferdowsi University of Mashhad (FUM))
  • 투고 : 2015.09.17
  • 심사 : 2016.01.11
  • 발행 : 2016.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

In the current research an advanced criterion with non-associated flow rule (non-AFR) for depicting the behavior of anisotropic sheet metals is presented to consider the strength differential effects (SDEs) for these materials. Owing to the fact that Lou et al. (2013) yield function is dependent on structure of an anisotropic material (BCC, FCC and HCP), an advanced yield function with inspiring of Yoon et al. (2014) yield function is proposed which is dependent upon anisotropic structures. Furthermore, to compute Lankford coefficients, a new pressure sensitive plastic potential function which would be dependent to anisotropic structure is presented and coupled with the proposed yield function with employing a non-AFR in a novel criterion which is called here 'dvanced criterion'. Totally eighteen experimental data are required to calibrate the criterion contained of directional tensile and compressive yield stresses for the yield function and directional Lankford coefficients for the plastic potential function. To verify the criterion, three anisotropic sheet metals with different structures are taken as case studies such as Al 2008-T4 (a BCC material), Al 2090-T3 (a FCC material) and AZ31 (a HCP material).

키워드

참고문헌

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피인용 문헌

  1. Yield function of the orthotropic material considering the crystallographic texture vol.58, pp.4, 2016, https://doi.org/10.12989/sem.2016.58.4.677
  2. Non-linear influence of hydrostatic pressure on the yielding of asymmetric anisotropic sheet metals 2018, https://doi.org/10.1177/1081286516675662
  3. Modified Burzynski criterion along with AFR and non-AFR for asymmetric anisotropic materials vol.21, pp.2, 2016, https://doi.org/10.1007/s43452-021-00214-6