Fig. 37: Force-displacement curves of standard PFM mode II shear test (l/h = 5) compared to XPFM simulations with different l/h-ratios

Two-Dimensional Investigation 
 
Simlulation of a 2D mode II fracture test. A quasi-static displacement increment is applied with 140 steps and Δu = 5 · 10−5 mm for each load step. After that, the displacement increment is set to Δu = 1·10−6 mm until failure. To suitably compare the PFM approach and the XPFM approach, one staggered iteration per load step (n stag = 1) is applied in both cases. The initial crack is modelled explicitly.

material parameters:
λ = 121.15 kN/mm^2, μ = 80.77 kN/mm^2, Gc = 2.7·10−3 kN/mm, l = 0.008 mm, kg = 0, kφ = 0.005, kreg = 2 · 10^−4 · l^2


for each file -> Columns
1: displacement ux
2: force

file fig_37_data_1.csv: PFM, l/h=5
file fig_37_data_2.csv: XPFM, l/h=1
file fig_37_data_3.csv: XPFM, l/h=2