CLamPy

Classical LAMinate theory for the lightweight design of structures and systems in PYthon

Klassische Laminattheorie für Leichtbau-Strukturen und -Systeme in Python

Teoria classica dei laminati per la costruzione leggera di strutture e sistemi in Python

Installation

Prerequisites

Python 3 in addition to further packages. These necessary libraries can be installed via PIP:

pip install scipy
pip install numpy
pip install matplotlib
pip install tikzplotlib
pip install pandas
pip install openpyxl

Install

python setup.py install

PIP

You can also install CLamPy via PIP

pip install CLamPy

Getting started

See Python scripts and Jupyter notebook in test.

Assumptions

• Kirchhoff kinematic assumptions
  • Normals to the neutral plane remain normal after deformation
  • Normals remain straight after deformation
  • Thickness remains the same after deformation
• Ideal bonding
  • No height of bonding between plies
  • Plies cannot slip relative to each other, i.e. no shear deformation
  • The strength between plies is infinite
• Geometry
  • Constant uniform thickness
  • Thin laminate, i.e. width and length > 10 times thickness
  • Small displacements and rotations, i.e. out-of-place displacement << thickness

Furture work

• Add documentation including list of all nomenclature with meaning
• Different material parameters for each ply as array
• Material library
• Plot Young's modulus of each ply
• Top and Bottom characterisctics in an array for each ply
• Set warning if material properites have strange values
• Add thermal properties
• Add moisture properties

Main source

• Jones, R. M. (2014) Mechanics of composite materials. Second Edition, Taylor and Francis, New York.

Further references

• http://kmjespersen.sci-life.com/laminate-theory-example-using-python-notebook/
• https://github.com/joaopbernhardt/lamipy
• https://github.com/Eacaen/CLT-material-properties
• https://github.com/kemeen/material_mechanics
• http://kmjespersen.sci-life.com/laminate-theory-example-using-python-notebook/
• https://wstein.org/edu/2010/480b/projects/05-lamination_theory/

Authors

E. M. Gioia & E. J. Wehrle