DETECTION OF BONDING DEFECT IN MULTIMATERIALS SANDWICH STRUCTURES USING THERMOGRAPHY AND NUMERICAL SIMULATION PREDICTION

2020 ◽  
Vol 11 (4) ◽  
pp. 323-340
Author(s):  
Komkrisd Wongtimnoi ◽  
Pisak Chermprayong ◽  
Laurent Mezeix
Keyword(s):  
Numerical Simulation ◽  
Sandwich Structures

NUMERICAL SIMULATION OF RESIDUAL STRENGTH FOR INSERTS IN SANDWICH STRUCTURES

2020 ◽  
Vol 11 (3) ◽  
pp. 209-225
Author(s):  
Kittigorn Chalernphonb ◽  
Natthawat Hongkarnjanakul ◽  
Laurent Mezeix
Keyword(s):  
Numerical Simulation ◽  
Residual Strength ◽  
Sandwich Structures

scholarly journals Numerical simulation and experimental validation on fabrication of nickel-based superalloy Kagome lattice sandwich structures

China Foundry ◽  
2020 ◽  
Vol 17 (1) ◽  
pp. 21-28
Author(s):  
Yan-peng Wei ◽  
Bo Yu ◽  
Quan-zhan Yang ◽  
Peng Gao ◽  
Jian Shi ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Experimental Validation ◽  
Sandwich Structures ◽  
Kagome Lattice ◽  
Kagomé Lattice ◽  
Nickel Based Superalloy

Research on the Anti-Penetration Performance of Aluminum Foam Sandwich Plate

2014 ◽  
Vol 624 ◽  
pp. 20-24 ◽  
Author(s):  
Gui Yun Hang ◽  
Wen Li Yu ◽  
Tao Wang ◽  
Jin Tao Wang ◽  
Zhen Li
Keyword(s):  
Numerical Simulation ◽  
Finite Elements ◽  
Dynamic Response ◽  
Direct Effect ◽  
Aluminum Foam ◽  
Sandwich Plate ◽  
Sandwich Structures ◽  
Simulation Method ◽  
Foam Core ◽  
Penetration Process

This paper investigated the anti-penetration performance of different sandwich structures plate using numerical simulation method. Finite elements models of the bullet and sandwich plate were established. The penetration performance of sandwich plate by bullet was simulated by software of LS-DYNA and dynamic response of the bullet during the penetration process was got. The results show that the anti-penetration performance is different because of the different cores in the plate. Besides, the density of the aluminum foam core has a direct effect on the performance. This paper could provide some reference for the designing of sandwich structures.

Numerical simulation of Lamb wave propagation in metallic foam sandwich structures: a parametric study

2013 ◽  
Vol 97 ◽  
pp. 387-400 ◽  
Author(s):  
Seyed Mohammad Hossein Hosseini ◽  
Abdolreza Kharaghani ◽  
Christoph Kirsch ◽  
Ulrich Gabbert
Keyword(s):  
Numerical Simulation ◽  
Wave Propagation ◽  
Parametric Study ◽  
Lamb Wave ◽  
Sandwich Structures ◽  
Metallic Foam ◽  
Lamb Wave Propagation

Manufacturing Aluminum Sandwich Structures by Means of Superplastic Forming

1999 ◽  
Vol 601 ◽  
Author(s):  
P. Impiö ◽  
J. Pimenoff ◽  
H. Hänninen ◽  
M. Heinäkari
Keyword(s):  
Numerical Simulation ◽  
Large Scale ◽  
Elevated Temperatures ◽  
Sandwich Structures ◽  
Superplastic Forming ◽  
Tensile Tests ◽  
Test Material ◽  
Forming Process ◽  
Metallographic Examination ◽  
Test Materials

AbstractThis paper examines the possibilities of manufacturing large-scale aluminium sandwich structures using superplastic forming. The materials tested were Mg-alloyed production quality aluminium (Al 5083-0, Al 5083-H321) and Aluminium 1561. Tensile tests at elevated temperatures were performed in order to establish the suitability of the test materials for superplastic forming. The microstructural changes in the test material specimens were examined. Thereafter numerical simulation of the Al 5083-0 forming process was conducted based on the tensile test results. The numerical simulation results were subsequently used to estimate forming parameters and the feasibility of manufacturing large-scale structures by superplastic forming.The results indicate that higher strain can be reached at higher temperatures for the test materials. Aluminium alloy 1561 exhibited the largest elongation to fracture and Al 5083-H321 the smallest. Strain appeared to be temperature dependent but not much affected by the strain rate. Metallographic examination clarified that Al-5083-0 and AI-5083-H321 showed susceptibility for cavity forming whereas Aluminium 1561 formed relatively few voids. The numerical simulation indicated that Al 5083-0 can be superplastically formed using relatively low forming pressure (0.9 – 1.4 bar).

scholarly journals Influence of the Thermal Field on Static Behaviour of Sandwich Structures

2019 ◽  
Vol 56 (1) ◽  
pp. 110-114
Author(s):  
Elena-Felicia Beznea ◽  
Gelu Coman ◽  
Nicusor Baroiu ◽  
Ionel Chirica
Keyword(s):  
Thermal Conductivity ◽  
Numerical Simulation ◽  
Thermal Field ◽  
Sandwich Structures ◽  
Experimental Studies ◽  
Sandwich Plates ◽  
Composite Sandwich ◽  
The Core ◽  
Composite Sandwich Structures ◽  
Static Behaviour

In this paper, numerical and experimental studies on the influence of the thermal field on behavior of the structure of sandwich plates in three points bending is analysed. Various materials are used so for skins. For the core only extruded polystyrene, with various thicknesses is used. The thermal conductivity n was determined by using the Hilton B480 unit, based on the heat flowmeter method described in ISO 8301:1991. We have been analyzed 12 cases of composite sandwich structures. The results obtained by experimental determination and numerical simulation of all cases of modeling are compared and certain differences occurred on the analyzing of influence of the thermal field on the bending characteristics of sandwich structures.

Water uptake by substituted amylose tablets: experimentation and numerical simulation

2009 ◽  
Vol 00 (00) ◽  
pp. 090904073309027-8
Author(s):  
H.W. Wang ◽  
S. Kyriacos ◽  
L. Cartilier
Keyword(s):  
Numerical Simulation ◽  
Water Uptake
Sign in / Sign up

Export Citation Format

Share Document