ABAQUS user-defined UMAT and VUMAT. UMAT: Warning: The use of this subroutine generally requires considerable expertise. You are cautioned that the implementation of any realistic constitutive model requires extensive development and testing. Initial testing on a single-element model with prescribed traction loading is strongly recommended. User subroutine UMAT: can be used to define the mechanical constitutive behavior of a material; will be called at all material calculation points of elements for which the material definition includes a user-defined material behavior; can be used with any procedure that includes mechanical behavior; can use solution-dependent state variables; must update the stresses and solution-dependent state variables to their values at the end of the increment for which it is called; must provide the material Jacobian matrix for the mechanical constitutive model; can be used in conjunction with user subroutine USDFLD to redefine any field variables before they are passed in; and is described further in User-defined mechanical material behavior.

References in zbMATH (referenced in 77 articles )

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  1. Jafaripour, Mostafa; Taheri-Behrooz, Fathollah: Creep behavior modeling of polymeric composites using Schapery model based on micro-macromechanical approaches (2020)
  2. Palizi, Mehrdad; Federico, Salvatore; Adeeb, Samer: Consistent numerical implementation of hypoelastic constitutive models (2020)
  3. Lucarini, S.; Segurado, J.: On the accuracy of spectral solvers for micromechanics based fatigue modeling (2019)
  4. Udhayaraman, R.; Mulay, Shantanu S.: Multi-scale damage framework for textile composites: application to plain woven composite (2019)
  5. Aveiga, David; Ribeiro, Marcelo L.: A delamination propagation model for fiber reinforced laminated composite materials (2018)
  6. Jansen van Rensburg, Gerhardus J.; Kok, Schalk; Wilke, Daniel N.: Modelling multiple cycles of static and dynamic recrystallisation using a fully implicit isotropic material model based on dislocation density (2018)
  7. Teferra, Kirubel; Graham-Brady, Lori: A random field-based method to estimate convergence of apparent properties in computational homogenization (2018)
  8. Fallah, A.; Ahmadian, M. T.; Firozbakhsh, K.; Aghdam, M. M.: Micromechanical modeling of rate-dependent behavior of connective tissues (2017)
  9. Fallah, Ali; Ahmadian, Mohammad Taghi; Mohammadi Aghdam, Mohammad: Rate-dependent behavior of connective tissue through a micromechanics-based hyper viscoelastic model (2017)
  10. Özdemir, İ.: Resistive force theory-based analysis of magnetically driven slender flexible micro-swimmers (2017)
  11. Augustins, L.; Billardon, R.; Hild, F.: Constitutive model for flake graphite cast iron automotive brake discs: induced anisotropic damage model under complex loadings (2016)
  12. Liu, Z. Y.; Dong, C. Y.: Automatic coupling of ABAQUS and a boundary element code for dynamic elastoplastic problems (2016)
  13. Nguyen, Nhung; Waas, Anthony M.: Nonlinear, finite deformation, finite element analysis (2016)
  14. Bellini, Chiara; Federico, Salvatore: Green-Naghdi rate of the Kirchhoff stress and deformation rate: the elasticity tensor (2015)
  15. Li, Huan; Pan, Xiaofei; Yuan, Huang: A nonlocal treatment technique based on the background cell concept for micro-mechanical damage modeling (2015)
  16. Lin, Chen; Li, Yue-Ming: A return mapping algorithm for unified strength theory model (2015)
  17. Pawlikowski, Marek; Domański, Janusz; Suchocki, Cyprian: Advanced finite element analysis of L4-L5 implanted spine segment (2015)
  18. Safaei, Mohsen; Lee, Myoung-Gyu; De Waele, Wim: Evaluation of stress integration algorithms for elastic-plastic constitutive models based on associated and non-associated flow rules (2015)
  19. Waffenschmidt, Tobias; Polindara, César; Menzel, Andreas; Blanco, Sergio: A gradient-enhanced large-deformation continuum damage model for fibre-reinforced materials (2014)
  20. Chockalingam, K.; Tonks, M. R.; Hales, J. D.; Gaston, D. R.; Millett, P. C.; Zhang, Liangzhe: Crystal plasticity with Jacobian-free Newton-Krylov (2013)

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