u4.82.01 Operator DEFI_FOND_FISS# 1. But 2. Syntax 3. Operands 3.1. Operand MAILLAGE 3.2. Crack bottom description 3.3. Description of lips 3.4. Operand PREC_NORM 4. Examples 4.1. Entire crack defined by various types of entities in 3D 4.2. Using operand NORMALE (plane crack DECOLLEE in 3D) 4.3. 2D crack 4.4. Closed crack bottom with node ordering