/DFS/DETPLAN/NODE

Block Format Keyword Describes a planar detonation wave.

N MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaCOtaaaa@36CE@ is the direction of propagation. Detonation velocity (D) is taken from JWL material law. Lighting time is set to TDET on the plane normal to N MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaCOtaaaa@36CE@ containing basis point P.
Figure 1.

dfs_detplan_image

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/DFS/DETPLAN/NODE/detp_ID/unit_ID
TDET mat_ID P_ID
N_ID

Definition

Field Contents SI Unit Example
detp_ID Detonator identifier.

(Integer, maximum 10 digits)
unit_ID Unit identifier.

(Integer, maximum 10 digits)
P_ID Node identifier for base point P.

Default node P is (0, 0, 0) (Integer)
TDET Detonation time.

Default = 0.0 (Real)
mat_ID Explosive material number concerned by detonation time.
= 0
All /MAT/LAW5 (JWL) material law are affected by the detonation time.

(Integer)
N_ID Node identifier for normal vector definition.

(Integer)

Comments

  1. Detonation time is TDET in plane containing basis point P.
  2. It is possible to define multiple detonators with different types and lighting times.
  3. If a detonation option is not defined, all JWL material law will instantaneously detonate.
  4. Burn fractions are available in time history file with /TH/BRIC card and BFRAC keyword.
  5. Detonation times can be written in the Starter output file for each JWL elements. Printout flag IPRI ≥ 3 (/IOFLAG).