Study of the ultrasonic compaction process of composite laminates—part II: advanced numerical simulation

2014 ◽  
Vol 8 (4) ◽  
pp. 625-637 ◽  
Author(s):  
J. Justo ◽  
F. Chinesta ◽  
E. Graciani ◽  
Ch. Ghnatios ◽  
F. París
Keyword(s):  
Numerical Simulation ◽  
Composite Laminates ◽  
Compaction Process ◽  
Ultrasonic Compaction

Study of the ultrasonic compaction process of composite laminates - part I: process modeling

2014 ◽  
Vol 8 (4) ◽  
pp. 613-623 ◽  
Author(s):  
J. Justo ◽  
E. Graciani ◽  
F. París ◽  
F. Chinesta ◽  
R. Ávila
Keyword(s):  
Process Modeling ◽  
Composite Laminates ◽  
Compaction Process ◽  
Ultrasonic Compaction

Simulation Study of Granular Compaction Dynamics under Vertical Tapping

2007 ◽  
Vol 555 ◽  
pp. 107-112 ◽  
Author(s):  
D. Arsenović ◽  
S.B. Vrhovac ◽  
Z.M. Jakšić ◽  
Lj. Budinski-Petković ◽  
A. Belić
Keyword(s):  
Numerical Simulation ◽  
Molecular Dynamics ◽  
Friction Coefficient ◽  
Simulation Study ◽  
Material Properties ◽  
Two Dimensions ◽  
Second Phase ◽  
Hard Disks ◽  
Compaction Process ◽  
Granular Compaction

We study by numerical simulation the compaction dynamics of frictional hard disks in two dimensions, subjected to vertical shaking. Shaking is modeled by a series of vertical expansions of the disk packing, followed by dynamical recompression of the assembly under the action of gravity. The second phase of the shake cycle is based on an efficient event−driven molecular−dynamics algorithm. We analyze the compaction dynamics for various values of friction coefficient and coefficient of normal restitution. We find that the time evolution of the density is described by ρ(t)=ρ∞ − ρEα[−(t/τ)α], where Eα denotes the Mittag−Leffler function of order 0<α<1. The parameter τ is found to decay with tapping intensity Γ according to a power law τ ∝ Γ−γ , where parameter γ is almost independent of the material properties of grains. Also, an expression for the grain mobility during compaction process has been obtained.

Numerical simulation of bolted joint composite laminates under low-velocity impact

2020 ◽  
Vol 23 ◽  
pp. 100891 ◽  
Author(s):  
Zhangxin Guo ◽  
Zhonggui Li ◽  
Hao Zhu ◽  
Junjie Cui ◽  
Diansen Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Composite Laminates ◽  
Low Velocity Impact ◽  
Bolted Joint ◽  
Low Velocity ◽  
Velocity Impact

Numerical Simulation of Motion Rules of Coarse Aggregates in the Compaction Process

2015 ◽  
Vol 44 (2) ◽  
pp. 20150228
Author(s):  
Ying Gao ◽  
Weidong Liu ◽  
Hanguang Li ◽  
Xiongwei Dai
Keyword(s):  
Numerical Simulation ◽  
Compaction Process ◽  
Coarse Aggregates

Some aspects of numerical simulation for Lamb wave propagation in composite laminates

2006 ◽  
Vol 75 (1-4) ◽  
pp. 267-275 ◽  
Author(s):  
Chunhui Yang ◽  
Lin Ye ◽  
Zhongqing Su ◽  
Michael Bannister
Keyword(s):  
Numerical Simulation ◽  
Wave Propagation ◽  
Lamb Wave ◽  
Composite Laminates ◽  
Lamb Wave Propagation
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