/ANIM/SHELL/FLDF

Engine Keyword Generates animation files containing the FLD damage factor for the FLD failure model.

Format

/ANIM/SHELL/FLDF/Keyword4

Definition

Field Contents SI Unit Example
Keyword4 Output location:
MEMB
Middle layer
UPPER
Upper layer
LOWER
Lower layer (number of integration points is equal to one)
 

Comments

  1. For a BATOZ shell element (Ishell=12), the value is the average value of the Gauss points in the layer.
  2. The values of FLD damage factor is equal to the ratio of the actual major principal strain value over the forming limit curve value:(1)
    F L D F = ε m a j o r ε lim MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOraiaadY eacaWGebGaamOraiabg2da9maalaaabaGaeqyTdu2aaSbaaSqaaiaa d2gacaWGHbGaamOAaiaad+gacaWGYbaabeaaaOqaaiabew7aLnaaBa aaleaaciGGSbGaaiyAaiaac2gaaeqaaaaaaaa@456F@

    Where, ε lim MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeqyTdu2aaS baaSqaaiGacYgacaGGPbGaaiyBaaqabaaaaa@3A9A@ is the major principal strain at failure limit from FLD (fct_ID in /FAIL/FLD).

    The FLDF compares the ε m a j o r MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeqyTdu2aaS baaSqaaiaad2gacaWGHbGaamOAaiaad+gacaWGYbaabeaaaaa@3C7C@ and ε lim MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeqyTdu2aaS baaSqaaiGacYgacaGGPbGaaiyBaaqabaaaaa@3A9A@ using the same ε m i n o r MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeqyTdu2aaS baaSqaaiaad2gacaWGPbGaamOBaiaad+gacaWGYbaabeaaaaa@3C88@ .


    Figure 1.

    FLDF may be greater than 1 if the option /FAIL/FLD, Ifail_sh =4 is used. In this case, the damage factor is only calculated for post-processing and no elements are deleted.