Environmental Data: Time series data on dynamic crack propagation in l...

Keywords:
CRACK PROPAGATION
DYNAMIC CRACK PROPAGATION
EXPERIMENT
PROPAGATION SAW TEST
SNOW AVALANCHE
SNOW MECHANICS
Keywords:
CRACK PROPAGATION
DYNAMIC CRACK PROPAGATION
EXPERIMENT
PROPAGATION SAW TEST
SNOW AVALANCHE
SNOW MECHANICS

Description

This data set includes material and results described in the related research article: Bergfeld, B., van Herwijnen A., Bobillier, G., Rosendahl P., Weiß...

Citation

Bergfeld, B., van Herwijnen, A., Schweizer, J. (2023). Time series data on dynamic crack propagation in long propagation saw tests. EnviDat. https://www.doi.org/10.16904/envidat.365.

Resources

  • Snowpack data and crack propagation characteristics

    Snowpack data includes the elastic modulus (stiffness properties) of the slab, the elastic modulus of the weak layer, and the specific fracture energy of the weak layer determined with a homogeneous and a layered slab model. During crack propagation, we measured the crack speed, touchdown distance, crack arrest length and energy dissipation due to compaction and dynamic fracture.

    Snowpack data and crack propagation characteristics

  • Videos of crack propagation

    The videos show the cracking process in the Propagation Saw Tests (flat field). The upper panel shows strain on top of the recorded movie frames. The second row shows vertical (w, blue line) and horizontal (u, orange line) displacement fields. The third and fourth row show the first and second time derivatives, namely the velocity and acceleration field.

    Videos of crack propagation

  • Sustained crack propagation index

    Index of self-sustained crack propagation SSP (ssp_measured.xlsx) with time. The self-sustained crack propagation index SSP was also modelled for simulated snow stratigraphy (ssp_modelled.xlsx) using crack speed and critical cut length parameterizations from Heierli (2005) and Richter et al. (2019), respectively.

    Sustained crack propagation index

  • SNOWPACK modelling

    The snow cover model SNOWPACK (version 3.60) was used to simulate the evolving snow stratigraphy at our field site. The model was driven with data from an automatic weather station which was located 100m next to the field site (FLS_bunker_snowpack.smet). The SNOWPACK initiation file (FLS_bunker_snowpack.ini) contains the selected model parameters that result in the modeled snow stratigraphy (FLS_bunker_snowpack.pro).

    SNOWPACK modelling