复合层压材料性能[杨氏模量、刚度矩阵、强度和失效准则应用]_python_代码_下载

Introduction ==================== | |CN|ENG| | |---|----|-----|-----| |1|`复合材料层合板计算`|[Composite Material Calculation with CLT][CLT]| [Introduction](#composite-material-calculation-with-clt)|`read the program introduction for more details ` [Here](/doc/pro_introduction.pdf) [Running requirements](#running-requirements) | [Installation](#installation) | [License](#license) <img align="right" width="400" height="300" src="fig/Composite_3d.png" data-canonical-src="fig/Composite_3d.png" /> ******************************** ##### Project code for Mechanics of Composite Structure IN NPU,PARTLY FINISH. ##### ALL RIGHT RESERVED ******************************** #### see the blade design used the composite materials __composite-blade-design__ [Blog Introduction](https://eacaen.github.io/python/2017/10/17/composite-blade-design.html) [Github source](https://github.com/Eacaen/composite-blade-design) ******************************** ## Project goals: - Use the fibre and matrix or given data to define the composite lamina and then layup the laminate. - Use the *Classical Lamination Theory* to calculate the stress&strain distribution in each layer. - Choose suitable *Failure Criteria* to check the strength of laminate at given load. - Show accurate calculate information of results, display figures of stress&strain distribution; show the failure steps of chosen layer. ## Data flow of the Project <img src="fig/dataflow.png" data-canonical-src="fig/dataflow.png" /> ## Task achieved: - [x] Use CLT to calculate stresses and strains distribution in lamina & laminate in local and global coordinate systems - [x] Elastic modulus calculate for lamina with [mixture of law , VDI2014 , Chamis model .....] - [x] Global elastic modulus calculate for __laminate__ - [x] Failure criteria [Tsai-Wu, Tsai-Hill, Hoffman, Max stress&strain ...] - [x] Display the figures and report accurate results - [x] Puck failure criteria - [x] Can choose failure criteria in step analysis by pass the name of the *failure criteria* - [x] Add progress bar in step analysis, more cleaner - [ ] Thermal & moisture effects on CLT calculations - [ ] Database for Fibre and Matrix, laminate materials - [ ] ... ## Brief intro ### Coordinate System * xy is the Global System for __laminate__ * 12 is the Local system for __lamina__ <img src="fig/laminate_COS.png" data-canonical-src="fig/laminate_COS.png" /><img src="fig/lammmm.png" data-canonical-src="png/lammmm.png" /> ### Composite Material Calculation with CLT * The main package is a Python composite materials calculation package. The calculation of laminate stress, strain and failure Criterion based on the Classical Lamination Theory ([CLT](https://en.wikipedia.org/wiki/Composite_laminates)). - You can define the lamina's fibre and matrix's parameters like the Elastic moduli , Shear moduli  and strength, then in the next step, you can define lamina's layer angle and thickness directly or combined by fibre/matrix. - Use the ***Laminate class*** to get the matrix such as . - Use the ***Load class*** and load force and moment to the laminate to calculate the stress  and stain  of each lamina. - Use the ***Failure_Cirterion class*** and you can choose different theories to check witch lamina failure or not. * The *laminate_Tools.py* can help to plot the stress and strain distribution in the laminate in the COS(xy or 12), print the results in _Excel_ formate and save it in _Excel_. <img width="400" height="300" src="fig/strain_dis1.png" data-canonical-src="fig/strain_dis1.png" /><img width="400" height="300" src="fig/stress_dis.png" data-canonical-src="fig/stress_dis.png" /> <img width="400" height="300" src="fig/strain_dis.png" data-canonical-src="fig/strain_dis.png" /><img width="400" height="300" src="fig/result.png" data-canonical-src="fig/result.png" /> ## Run failure analysis Run failure analysis by adding load step by step , use *laminate_step_failure.py* can plot the Load Factor vs the strain development of the chosen laminate, at the same time, it can mark the First Ply Failure and Last Ply Failure. > It may take some more time to run the process <img width="400" height="300" src="fig/failstep.png" data-canonical-src="fig/failstep.png" /><img width="400" height="300" src="fig/failureStep.png" data-canonical-src="fig/failureStep.png" /> ***************************************************** ### Running requirements Python > v2.7 Numpy Scipy Sympy matplotlib ### Installation >Copy the source files in the local directory and add the PATH in the system or copy the files to the Python's "site-packages" folder. >Copy the source file in you own file and develop the new function by yourself. ### License #### Project code for Mechanics of Composite Structure IN NPU,PARTLY FINISH. #### ALL RIGHT RESERVE ***************************************************** #### Debugs log - [x] The __fibre__ and __fiber__ mixed used, can not enter *fibre failure* mode. - [x] Run the load in a large enough scales to get the failure step curve, how to how to distinguish the lamina has failed? - [ ] how to distinguish the lamina has failed? the matrix of fiber failure. The test example shows the fuzzy answer. --------------------------------------------------------- [CLT]:https://github.com/Eacaen/CLT-material-properties "CLT"