Teaching Video of Discrete Element Method and MatDEM (Subtitles in English and Chinese)
Discrete Element Analysis in Geotechnical Engineering
- Theory and Application of MatDEM
Speaker: Chun Liu, Nanjing University
Sutitle group: Qiang Tang, Xiaowei Yang, Yao Zhu, Chenguang Zhu, Yehuan Huang, Liwei Liang
Online video are moved to https://space.bilibili.com/380808616/#/ (no advertisements)
These video can be download from https://pan.baidu.com/s/1_jPRaO31OyyE0TYfmQPjFw (with Chinese and English subtitles, and including the following 10 chapters)
Part I Theory
Chapter 01 Principle and Implementation of Discrete Element Method, 55 minutes
01.1 Application fields and basic principle of discrete element method
01.2 Damped harmonic vibration of element
01.3 Three major issures of discrete element method
01.4 Interface and operations of MatDEM
Chapter 02 The Basic Structure of MatDEM, 61 minutes
02.1 Modeling by using struct data and function
02.2 Element type and elastic Clump
02.3 Introduction of help file and data structure of MatDEM
02.4 Filter of elements and post-processing commands
Chapter 03 Modular Modeling of MatDEM, 76 minutes
03.1 Automatic material training
03.2 Digital elevation modeling and standard balance
03.3 Modeling process of BoxLayer example
03.4 Definition and use of filter and group
03.5 Use of elastic Clump and application of boundary conditions
03.6 Balancing model, section display and data save
Chapter 04 Example of MatDEM Modeling Process, 65 minutes
04.1 Making struct data of balls and blocks
04.2 Modeling from an empty box
04.3 Applying load and numerical simulation
04.4 Using digital elevation data to define layers
04.5 Using Tool_Cut and images to cut model
Chapter 05 Modeling Essentials and Frequently Asked Questions, 45 minutes
05.1 Modification of element properties of specified group
05.2 Understanding of pressure platen and digital elevation modeling
05.3 Setting of parameters of iteration calculation at the third step
Part II Application
Chapter 06 Pile-soil Interaction - Detailed Modeling Process, 132 minutes
06.1 Understanding the effect of code through the example window
06.2 Simulation box customization and element gravity deposition
06.3 Gravity balancing of sample and data saving
06.4 Importing data and building soil layer
06.5 Definition and application of materials
06.6 Building a pile model and embed it in the soil
06.7 Balancing operations and check of pile-soil model
06.8 Numerical simulation of pile pulling process
Chapter 07 Microwave-assisted Rock Breaking - Mixing of Various Materials, 112 minutes
07.1 Establishing the geometric model of microwave-assisted rock breaking
07.2 Cutting model and defining material
07.3 Distinguish and set Clump of different materials
07.4 Model balancing method and its effect
07.5 Check of model balancing status
07.6 Setting of cycle number and time step
07.7 Thermal expansion and fracture formation of particles
07.8 Modeling essentials of microwave-assisted breaking rock
20181027，Updated next week
Chapter 08 Tunnel and Ground Settlement - Structure and Soil, 60 minutes
08.1 Using custom functions to make a tunnel tube
08.2 Tunnel excavation and embedded tunnel tube
08.3 Tight contact between tunnel tube and soil
08.4 Application of load and numerical simulation
Chapter 09 Torsional Shear and Direct Shear Test - Discrete Element Test, 64 minutes
09.1 Defining test parameters and making sample
09.2 Making torsion shear test box
09.3 Put the sample into the shear box
09.4 Material setting and numerical simulation
Chapter 10 Triaxial Stress and Joints - Deep Rock Mechanics, 69 minutes
10.1 Construction of a triaxial test box
10.2 Apply of triaxial stress
10.3 Using triangles and polygons to define joint faces
10.4 Using Tool_Cut to define complex joint faces
739 minutes in total
Books related to the video will be published at the end of 2018, in both English (Springer) and Chinese.