OOF: Finite Element Analysis of Microstructures

trigonalCrack next up previous contents
Next: zimmer and zimmer2 Up: Element Types and their Previous: griffith and griffith2   Contents



A trigonalA element (Section 4.5.7) with the griffith2 fracture criterion (Section 4.5.11).


The orientation of the trigonal element before it mutates. See Section 4.3.

thermoelastic coefficients
Before mutation, the components of the stiffness matrix are those of the trigonalA element (Section 4.5.7): c11, c12, c13, c14, c15, c33, and c44. The two independent coefficients of thermal expansion are alpha11 and alpha33.

The surface energy of the crack.

The factor which multiplies the rotated stiffness matrix's $C_{zzzz}$ component during a mutation. [dimensionless]

The factor which multiplies the rotated stiffness matrix's remaining $C_{ijkl}$ components for at least one of ijkl=z during a mutation. [dimensionless]

If true, an element which has been damaged during one mutate command will not be damaged further on subsequent mutate commands. If false, the knockdown factors may be applied multiple times. Default: false

/* Send mail to the OOF Team *//* Go to the OOF Home Page */