Weac

LAYERED SLABS ON COMPLIANT WEAK LAYERS

WEAC v2.1 provides Python 🐍 implementations of closed-form analytical models for the mechanical analysis of **stratified snow covers** on compliant weak layers.

FEATURES

- Consistent use of coordinate system with downward pointing z-axis
- Consitent top-to-bottom numbering of slab layers
- Implementation of PSTs cut from either left or right side

**Full Changelog**: https://github.com/2phi/weac/commits/v2.1.0

- Added automatic version bumping

- Fixed PyPI version error

- Fixed PyPI publish workflow

FEATURES

- Completely rewritten in Python
- Coupled bending-extension ODE solver implemented
- Stress analysis of arbitrarily layered snow slabs
- FEM validated
- displacements
- weak-layer stresses
- energy release rates in weak layers
- [Documentation](https://2phi.github.io/weac/)
- [Demo and examples](https://github.com/2phi/weac/blob/main/demo/demo.ipynb)

**Full Changelog**: https://github.com/2phi/weac/commits/v2.0.1

LAYERED SLABS ON COMPLIANT WEAK LAYERS

WEAC v2.0 provides Python 🐍 implementations of closed-form analytical models for the mechanical analysis of **stratified snow covers** on compliant weak layers.

FEATURES

- Completely rewritten in Python
- Coupled bending-extension ODE solver implemented
- Stress analysis of arbitrarily layered snow slabs
- FEM validated
- displacements
- weak-layer stresses
- energy release rates in weak layers
- [Documentation](https://2phi.github.io/weac/)
- [Demo and examples](https://github.com/2phi/weac/blob/main/demo/demo.ipynb)

**Full Changelog**: https://github.com/2phi/weac/commits/v2.0.0

- Rosendahl, P. L., & Weißgraeber, P. (2020). Modeling snow slab avalanches caused by weak-layer failure – Part 1: Slabs on compliant and collapsible weak layers. The Cryosphere, 14(1), 115–130. https://doi.org/10.5194/tc-14-115-2020
- Rosendahl, P. L., & Weißgraeber, P. (2020). Modeling snow slab avalanches caused by weak-layer failure – Part 2: Coupled mixed-mode criterion for skier-triggered anticracks. The Cryosphere, 14(1), 131–145. https://doi.org/10.5194/tc-14-131-2020

FEATURES

- Slab deformation analysis
- Weak-layer stress prediction
- Finite fracture mechanics implementation
- Anticrack nucleation

**Full Changelog**: https://github.com/2phi/weac/commits/v1.0.0