Explicit dynamics simulation of Pecan fruit deformation under compressive loading-Part-2: Explicit dynamics simulation procedure

2017 ◽  
Vol 40 (6) ◽  
pp. e12582 ◽  
Author(s):  
H. Kursat Celik
Keyword(s):  
Compressive Loading ◽  
Dynamics Simulation ◽  
Simulation Procedure ◽  
Explicit Dynamics

Molecular Dynamics Simulation of the Buckling Behavior of Boron Nitride Nanotubes under Uniaxial Compressive Loading

2010 ◽  
Vol 297-301 ◽  
pp. 984-989 ◽  
Author(s):  
S. Ebrahimi-Nejad ◽  
Ali Shokuhfar ◽  
A. Zare-Shahabadi
Keyword(s):  
Boron Nitride ◽  
Compressive Loading ◽  
Pair Potential ◽  
Md Simulations ◽  
Boron Nitride Nanotubes ◽  
Dynamics Simulation ◽  
Buckling Loads ◽  
Buckling Behavior ◽  
Bond Stretching ◽  
Different Diameters

Boron Nitride nanotubes (BNNTs) together with carbon nanotubes (CNTs) have attracted the wide attention of the scientific community and have been considered as promising materials due to their unique structural and physical properties. In this paper, the behavior of BNNTs of different diameters under compressive loading has been studied through molecular dynamic (MD) simulations. We have used a Lennard-Jones pair potential to characterize the interactions between non-bonded atoms and harmonic potentials for bond stretching and bond angle vibrations. Results of the MD simulations determine the critical buckling loads of the BNNTs of various diameters under uniaxial compression, and indicate that for the simulated BNNTs of length L = 6 nm, the critical buckling loads increase by increasing the nanotube diameters.

Molecular dynamics simulation of the coalescence and melting process of Au and Cu nano-clusters

2018 ◽  
Vol 32 (06) ◽  
pp. 1850061
Author(s):  
Gang Chen ◽  
Chuan Jie Wang ◽  
Peng Zhang
Keyword(s):  
Shear Deformation ◽  
Melting Process ◽  
Dynamics Simulation ◽  
Particle Rotation ◽  
Interface Diffusion ◽  
Surface And Interface ◽  
Simulation Procedure ◽  
Increasing Temperature ◽  
Deformation Surface ◽  
Cu Nanoclusters

Molecular dynamic (MD) method is used to study the coalescence and fusing process of Au and Cu nanoclusters. The results show that shear deformation, surface and interface diffusion play important role in different stages of all simulation procedure. In most cases, shear deformation produces the twin boundary or/and stacking fault in particles by particle rotation and slide. The angle between the {111} of Au and Cu particles decrease with increasing temperature, which promotes the formation of the stable interface. Furthermore, the coalescence point and melting temperature increase as cluster diameter increases. For the other cases, there are no particle rotation and slide phenomenon in the elevating temperature process because the stable interface can be formed by forming twin boundaries once two particles contact.

scholarly journals Explicit Dynamics Simulation of High-Speed Railway Bearing Based On ANSYS/LS-DYNA

2019 ◽  
Vol 612 ◽  
pp. 032011
Author(s):  
Yongwu Wang ◽  
Gang Zhang ◽  
Canyang Ma ◽  
Kai Yang ◽  
Zhenqiang Zhang ◽  
...  
Keyword(s):  
High Speed ◽  
Dynamics Simulation ◽  
High Speed Railway ◽  
Explicit Dynamics

Explicit Dynamics Simulation Research on Soil Cutting of Shield Machine Based on LS-DYNA

2011 ◽  
Vol 697-698 ◽  
pp. 642-645
Author(s):  
X.G. Wang ◽  
Wei Guo ◽  
Jian Qin Liu
Keyword(s):  
Thrust Force ◽  
Dynamics Simulation ◽  
Simulation Research ◽  
Finite Element Software ◽  
Explicit Dynamics ◽  
Total Thrust ◽  
Soil Cutting ◽  
Soil Residue ◽  
Shield Machine ◽  
Good Agreement

In this paper, the universal nonlinear finite element software LS-DYNA is applied to the explicit dynamics simulation of shield’s soil cutting in tunneling, and using Non-reflective boundary of DYNA’s module, accurately conduct the dynamic analysis of shield’s tunneling. Finally Making visualization processing on the computed results with the post-processing soft LS-PREPOST. Compared with results of static’s simulation and small-sized shield experiment indoor, the explicit dynamics simulation used in the paper is in good agreement with them. Through the alleosis chat of internal energy, we can see that LS-DYNA can be commendably utilized to explicit dynamics simulation of soil cutting of shield’s cutter, simultaneously, we also concluded that moderately increasing the cutter opening rate will have a significant impact on improving the unearthed rate of soil residue, tunneling efficiency and lowering the total thrust force of the shield.

Sign in / Sign up

Export Citation Format

Share Document