!PLASTIC¶

Ufafanuzi wa nyenzo plastiki

Unapofafanua !PLASTIC, lazima pia ufafanue !ELASTIC ndani ya !MATERIAL hiyo hiyo.

Vigezo¶

YIELD        = MISES (Thamani ya chaguo-msingi), Mohr-Coulomb, DRUCKER-PRAGER, USER
HARDEN       = BILINEAR (Thamani ya chaguo-msingi), MULTILINEAR, SWIFT, RAMBERG-OSGOOD, KINEMATIC, COMBINED
DEPENDENCIES = 0 (Thamani ya chaguo-msingi) / 1
INFINITESIMAL    Ikibainishwa, dhana ya deformation ndogo hutumika

** Kuanzia mstari wa 2 na kuendelea **

Wakati `YIELD = MISES` (Thamani ya chaguo-msingi)¶

** Wakati HARDEN = BILINEAR (Thamani ya chaguo-msingi) **

(Mstari wa 2) YIELD0, H

** Wakati HARDEN = MULTILINEAR **

(Mstari wa 2) YIELD, PSTRAIN, Temperature
(Mstari wa 3) YIELD, PSTRAIN, Temperature

...inaendelea

** Wakati HARDEN = SWIFT **

(Mstari wa 2) ε0, K, n

** Wakati HARDEN = RAMBERG-OSGOOD **

(Mstari wa 2) ε0, D, n

** Wakati HARDEN = KINEMATIC **

(Mstari wa 2) YIELD0, C

** Wakati HARDEN = COMBINED **

(Mstari wa 2) YIELD0, H, C

Wakati `YIELD =` Mohr-Coulomb au Drucker-Prager¶

** Wakati HARDEN = BILINEAR (Thamani ya chaguo-msingi) **

(Mstari wa 2) c, $\phi$, H, $\psi$

** Wakati HARDEN = MULTILINEAR **

(Mstari wa 2) $\phi$, $\psi$
(Mstari wa 3) c, PSTRAIN
(Mstari wa 4) c, PSTRAIN
...inaendelea

Aina nyingine za HARDEN = hupuuzwa na huwa thamani ya chaguo-msingi (BILINEAR).

Jina la kigeu	Sifa	Maelezo
YIELD0	R	Yield stress ya awali
H	R	Mgawo wa hardening
PSTRAIN	R	Plastic strain
YIELD	R	Yield stress
\(\varepsilon0, K, n\)	R	\(\overline{\sigma} = k\left( \varepsilon_{0} + \overline{\varepsilon} \right)^{n}\)
\(\varepsilon0, D, n\)	R	\(\varepsilon = \frac{\sigma}{E} + \varepsilon_{0}\left( \frac{\sigma}{D} \right)^{n}\)
\(\phi\)	R	Pembe ya msuguano wa ndani
\(\psi\)	R	Pembe ya dilatancy (chaguo-msingi: thamani sawa na \(\phi\))
c	R	Cohesion
C	R	Mgawo wa linear kinematic hardening
Temperature	R	Halijoto (inahitajika wakati DEPENDENCIES=1)
v1, v2...v10	R	Konstanti za nyenzo

** Wakati YIELD= USER **

(Kuanzia mstari wa 2 na kuendelea) v1, v2, v3, v4, v5, v6, v7, v8, v9, v10

Mfano wa matumizi¶

!PLASTIC, YIELD=MISES, HARDEN=MULTILINEAR, DEPENDENCIES=1
  276.0, 0.0, 20.
  296.0, 0.0018, 20.
  299.0, 0.0053, 20.
  303.0, 0.008, 20.
  338.0, 0.0173, 20.
  372.0, 0.0271, 20.
  400.0, 0.037, 20.
  419.0, 0.0471, 20.
  437.0, 0.0571, 20.
  450.0, 0.0669, 20.
  460.0, 0.0767, 20.
  469.0, 0.0867, 20.
  477.0, 0.0967, 20.
  276.0, 0.0, 100.
  276.0, 0.0018, 100.
  282.0, 0.0053, 100.
  295.0, 0.008, 100.
  330.0, 0.0173, 100.
  370.0, 0.0271, 100.
  392.0, 0.037, 100.
  410.0, 0.0471, 100.
  425.0, 0.0571, 100.
  445.0, 0.0669, 100.
  450.0, 0.0767, 100.
  460.0, 0.0867, 100.
  471.0, 0.0967, 100.
  128.0, 0.0, 400.
  208.0, 0.0018, 400.
  243.0, 0.0053, 400.
  259.0, 0.008, 400.
  309.0, 0.0173, 400.
  340.0, 0.0271, 400.
  366.0, 0.037, 400.
  382.0, 0.0471, 400.
  396.0, 0.0571, 400.
  409.0, 0.0669, 400.
  417.0, 0.0767, 400.
  423.0, 0.0867, 400.
  429.0, 0.0967, 400.

Mgawo wa work hardening huhesabiwa kwa interpolesheni kutoka data ya ingizo iliyo hapo juu kwa halijoto au plastic strain iliyobainishwa. Ni lazima kuingiza safu ileile ya PSTRAIN kwa kila thamani ya halijoto.