“…The parameter φ' is the friction angle of the soil at a critical state, assumed to be independent of Lode angle. Figure 4.3 shows the failure surface in the deviatoric plane, having a similar shape to that proposed by Matsuoka and Nakai (1974). This surface coincides with the Mohr-Coulomb hexagon at all vertices in the deviatoric plane, and the failure surface remains convex if α ≥ 0.6 (i.e.…”
Section: Yield Surface and Plastic Potential In Deviatoric Planesupporting
Hau, Kah Wai (2003) Application of a three-surface kinematic hardening model to the repeated loading of thinly surfaced pavements. PhD thesis, University of Nottingham.Access from the University of Nottingham repository:
“…The parameter φ' is the friction angle of the soil at a critical state, assumed to be independent of Lode angle. Figure 4.3 shows the failure surface in the deviatoric plane, having a similar shape to that proposed by Matsuoka and Nakai (1974). This surface coincides with the Mohr-Coulomb hexagon at all vertices in the deviatoric plane, and the failure surface remains convex if α ≥ 0.6 (i.e.…”
Section: Yield Surface and Plastic Potential In Deviatoric Planesupporting
Hau, Kah Wai (2003) Application of a three-surface kinematic hardening model to the repeated loading of thinly surfaced pavements. PhD thesis, University of Nottingham.Access from the University of Nottingham repository:
“…Variation of ö9 with Ł for constant M J available in the literature. Two of these have been discussed above, and they are shown along with those suggested by Matsuoka & Nakai (1974) and Lade & Duncan (1975) in Fig. 58.…”
Section: (A) No Standard Non-linear Strategymentioning
“…Es zeigt sich, dass bereits bei einem kleinen Dilatanzwinkel von ψ = ϕ′/4 und 25° ≤ ϕ′ ≤ 45° eine um rund 5 % größere Böschungsneigung möglich ist, als bei Böden ohne Dilatanz [18]. Wird die unendliche Böschung mit einem elastischideal-plastischen Modell mit einer Grenzbedingung nach Matsuoka und Nakai [19] berechnet, folgen ca. 10 % hö-here maximale Böschungswinkel, als für das MC-Modell bei gleichem Dilatanzwinkel [18], [20].…”
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