PSI - Issue 44

Francesco S. Liguori et al. / Procedia Structural Integrity 44 (2023) 544–549

549

6

F. S. Liguori, A. Corrado, A. Bilotta and A. Madeo / Structural Integrity Procedia 00 (2022) 000–000

λ

3

E2

E1

2

E1

E2

1

mesh 1 mesh 2 mesh 3 S4-CDP

0

1

ε peq [%]

− 600 − 500 − 400 − 300 − 200 − 100 0 0

u A

z [ mm ]

Fig. 3: Prestressed girder: equilibrium paths (left-hand side) and equivalent plastic strain contour plot at two equilibrium points (right-hand side).

References

Bilotta A., Casciaro R., 2002. Assumed stress formulation of high order quadrilateral elements with an improved in-plane bending behaviour. Comput. Methods Appl. Mech. Engrg. 191 / 15-16, 4365–4378. Bilotta A., Casciaro R., 2007. A high performance element for the analysis of 2D elastoplastic continua. Comput. Methods Appl. Mech. Engrg. 196, 818–828. Bilotta A., Garcea G., Leonetti L., 2016. A composite mixed finite element model for the elasto-plastic analysis of 3D structural problems, Finite Elements in Analysis and Design 113, 43–53. Haussler-Combe, U., 2014. Computational Methods for Reinforced Concrete Structures. John Wiley & Sons. Hofstetter G., Mang H. A., 1996. Computational plasticity of reinforced and prestressed concrete structures, Computational Mechanics 17, 243– 254. Jirasek, M., Bazant, Z. P., 2002. Inelastic analysis of structures. John Wiley & Sons. Liguori, F. S., Madeo, A., 2021. A corotational mixed flat shell finite element for the e ffi cient geometrically nonlinear analysis of laminated composite structures. International Journal for Numerical Methods in Engineering 122 (17), 4575–4608. Madeo, A., Liguori, F. S., Zucco, G., Fiore, S., 2021. An e ffi cient isostatic mixed shell element for coarse mesh solution. International Journal for Numerical Methods in Engineering 122 (1), 82–121. Papanikolaou, V. K., Kappos, A. J., 2007. Confinement-sensitive plasticity constitutive model for concrete in triaxial compression. International Journal of Solids and Structures 44, 7021–7048. Simo, J. C., Hughes, T. J. R., 1998. Computational inelasticity. Springer-Verlag.