Drop Impact Behavior of Packaging System with Irregular Honeycomb Core

2010 ◽  
Vol 146-147 ◽  
pp. 127-133 ◽  
Author(s):  
Qiong Chen ◽  
Yuan Jun Lv
Keyword(s):  
Deformable Body ◽  
Impact Resistance ◽  
Drop Impact ◽  
Structure Design ◽  
Impact Behavior ◽  
Honeycomb Core ◽  
Packaging System ◽  
Product Packaging ◽  
Set Up ◽  
Paper Honeycomb

For a product packaging system with honeycomb paperboard, its impact resistance caused by drop impact behavior had been concerned. However, irregular hexagon structure of the paper honeycomb core exists in package business, which is attributable to laggard glue applicator. It has an impact on its impact characteristics. Drop impact behavior of packaging system with irregular honeycomb core has been put forward to know its influence. First, on the basis of theoretical analysis, a series of honeycomb paperboards with different size dimension of paper honeycomb core had been set up in the FEA software. Then a packaging system which made up of rigid body and deformable body had been analyzed. The results show that the physical dimension of paper honeycomb core has a great effect on its impact resistance: with the increasing on degree of irregularity of paper honeycomb core, the peak acceleration has a quickly alteration. At the same time, when the length of glued edge is in near 4 mm and the girth of honeycomb core is 36mm, honeycomb paperboard can improve the energy absorption ability in the condition of elastic deformation. The research results can be used to optimize the structure design.

DROP IMPACT ANALYSIS ON THE PACKAGING SYSTEM USING HONEYCOMB PAPERBOARD

2011 ◽  
Vol 10 (01) ◽  
pp. 167-174 ◽  
Author(s):  
YUAN-JUN LV ◽  
QIONG CHEN
Keyword(s):  
Impact Analysis ◽  
Material Selection ◽  
Deformable Body ◽  
Drop Impact ◽  
Structure Design ◽  
Dynamic Responses ◽  
Honeycomb Core ◽  
Packaging System ◽  
Size Dimension ◽  
Paper Honeycomb

A packaging system using the material of honeycomb paperboard, when it is subjected to drop impact, is a major concern to manufacturers as it relates to the maximum stress causing failure. In this work, the full-field dynamic responses of product packaging system are measured and analyzed in detail with the simulation and experiment method. First, on the basis of theoretical analysis, a series of honeycomb paperboards with different size dimension of paper honeycomb core had been set up in the FEA software. Then a packaging system which is made up of rigid body and deformable body had been analyzed. The results show that the physical dimension of paper honeycomb core has a great effect on its impact resistance: with the increasing size dimension, the peak acceleration has a quickly alteration within 10 mm–20 mm, but in other region it has an effect in the form of up and down fluctuation. At the same time, with the increasing size dimension, honeycomb paperboard can improve the energy absorption ability in the condition of elastic deformation. The research results can be used to optimize the structure design and material selection.

scholarly journals Finite Element Study on the Impact Resistance of Laminated and Textile Composites

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1798 ◽  
Author(s):  
Xing ◽  
Du ◽  
He ◽  
Zhao ◽  
Zhang ◽  
...  
Keyword(s):  
Finite Element ◽  
Failure Process ◽  
Impact Resistance ◽  
Test System ◽  
Textile Composites ◽  
Structure Design ◽  
Impact Behavior ◽  
Composite Panels ◽  
Failure Patterns ◽  
The Impact

The impact resistance of fiber-reinforced polymer composites is a critical concern for structure design in aerospace applications. In this work, experiments were conducted to evaluate the impact performance of four types of composite panels, using a gas-gun test system. Computational efficient finite element models were developed to model the high-speed ballistic impact behavior of laminate and textile composites. The models were first validated by comparing the critical impact threshold and the failure patterns against experimental results. The damage progression and energy evolution behavior were combined to analyze the impact failure process of the composite panels. Numerical parametric studies were designed to investigate the sensitivity of impact resistance against impact attitude, including impact deflection angles and projectile deflection angles, which provide a comprehensive understanding of the damage tolerance of the composite panels. The numerical results elaborate the different impact resistances for laminate and textile composites and their different sensitivities to deflection angles.

scholarly journals Investigation of an Electrostatic Discharge Protective Biodegradable Packaging Foam in the Logistic Chain

2014 ◽  
Vol 5 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Ákos Mojzes ◽  
Barnabás Tóth ◽  
Péter Csavajda
Keyword(s):  
Electrostatic Discharge ◽  
Technological Development ◽  
Environmental Parameters ◽  
Thermoplastic Starch ◽  
Vital Role ◽  
Packaging Materials ◽  
Negative Effects ◽  
Packaging System ◽  
Product Packaging ◽  
The One

Abstract Since the beginning of the 20th century, logistics has undergone a huge technological development, which has, however, resulted in many negative effects as well. The industry, particularly in the packaging industry has been a massive waste producer, although recently it has forced the use of new materials and it started to focus on environmentally friendly technologies. During the transportation of finished and semi-finished Electrostatic Discharge (ESD) sensitive products, the product packaging system has a vital role. These kind of packaging materials must be suitable to both logistic (protection against mechanical and environmental stresses) and special ESD protection requirements. During the transportation of printed-circuit electronic products, ESD defense is then of primary significance. However there is a huge disadvantage for the use of various shield bags. Namely, this kind of associated packaging is particularly pollutant, it causes a lot of inconvenience in the form of waste. In order to rule out these materials from the packaging system, new innovative solutions have to be found. The investigated TPS (thermoplastic starch biodegradable foam) is subjected to a validation, a long process to certify that this material unites properties of two types of packaging materials at the same time. On the one hand, this packaging foam has to meet the requirements product defense. On the other hand, the material must be anti-static under the logistic stress effects. In case it is found suitable, it can be an alternative of the conventional materials. In this article, we investigate the ESD characteristic of TPS foam. As this material sensitive for environmental parameters during transportation, we make the relevant Surface Resistance (Rs) tests on different temperature and humidity conditions. Based on result, the decision of the application can be done, as an ESD packaging material.

IMPACT RESISTANCE PROPERTIES OF KEVLAR/GLASS FIBER HYBRID COMPOSITE LAMINATES

2015 ◽  
Vol 76 (3) ◽  
Author(s):  
Norazean Shaari ◽  
Aidah Jumahat ◽  
M. Khafiz M. Razif
Keyword(s):  
Glass Fiber ◽  
Hybrid Composite ◽  
Composite Laminates ◽  
Impact Damage ◽  
Impact Resistance ◽  
Impact Behavior ◽  
Slight Reduction ◽  
Depth Of Penetration ◽  
Damage Degree ◽  
The Impact

In this paper, the impact behavior of Kevlar/glass fiber hybrid composite laminates was investigated by performing the drop weight impact test (ASTM D7136). Composite laminates were fabricated using vacuum bagging process with an epoxy matrix reinforced with twill Kevlar woven fiber and plain glass woven fiber. Four different types of composite laminates with different ratios of Kevlar to glass fiber (0:100, 20:80, 50:50 and 100:0) were manufactured. The effect of Kevlar/glass fiber content on the impact damage behavior was studied at 43J nominal impact energy. Results indicated that hybridization of Kevlar fiber to glass fiber improved the load carrying capability, energy absorbed and damage degree of composite laminates with a slight reduction in deflection. These results were further supported through the damage pattern analysis, depth of penetration and X-ray evaluation tests. Based on literature work, studies that have been done to investigate the impact behaviour of woven Kevlar/glass fiber hybrid composite laminates are very limited. Therefore, this research concentrates on the effect of Kevlar on the impact resistance properties of woven glass fibre reinforced polymer composites.

Impact Analysis of Honeycomb Core Sandwich Panels

2020 ◽  
Author(s):  
Shah Alam ◽  
Damodar Khanal
Keyword(s):  
Sandwich Panels ◽  
Sheet Thickness ◽  
Composite Panel ◽  
Face Sheet ◽  
Impact Behavior ◽  
Front Face ◽  
Geometrical Parameters ◽  
Honeycomb Core ◽  
Back Face ◽  
The Impact

Abstract The goal of this paper is to analyze the impact behavior among geometrically different sandwich panels shown upon impact velocities. Initially, composite model with aluminum honeycomb core and Kevlar (K29) face sheets is developed in ABAQUS/Explicit and different impact velocities are applied. Keeping other parameters constant, model is simulated with T800S/epoxy face sheets. Residual velocities, energy absorption (%), and maximum deformation depth is calculated for sandwich panel for both models at five different velocities by executing finite element analysis. Once the better material is found for face sheets, process is extended by varying the ratio of front face sheet thickness to back face sheet thickness keeping other geometrical parameters constant to find the better geometry. Also, comparison of impact responses of sandwich composite panel on different ratio of front face sheet thickness to back face sheet thickness is done and validated with other results available in literature.

Geological Adaptive Cutterhead Selection for EPB Shield Based on BP Neural Network

2014 ◽  
Vol 607 ◽  
pp. 118-123
Author(s):  
Lai Kuang Lin ◽  
Yi Min Xia ◽  
Fei He ◽  
Qing Song Mao ◽  
Kui Zhang
Keyword(s):  
Neural Network ◽  
Bp Neural Network ◽  
Earth Pressure ◽  
Training Model ◽  
Structure Design ◽  
Pressure Balance ◽  
Selection For ◽  
Earth Pressure Balance ◽  
Set Up ◽  
Epb Shield

In view of complex and fuzziness of geological adaptive cutterhead selection for earth pressure balance (EPB) shield, a cutterhead selection method based on BP neural network is put forward. Considering the structure characteristics of EPB shield cutterhead, typical cutterhead types are classified and summarized based on cutterhead topology structure and number of spokes. After analyzing the determinants of cutterhead selection, one-to-many mapping relation between cutterhead type and geological parameters is put forward, and then core geologic parameters related to cutterhead selection are concluded. The feasibility of using neural network method to choose the cutterhead type is analyzed, and a BP neural network training model for cutterhead selection is set up and tested in testing sample data. The result shows that the selected cutterhead and the construction cutterhead are basically consistent. The feasibility of this method is proved and it can be theoretical basis for the cutterhead structure design which will improve scientific of cutterhead selection.

scholarly journals Impact Resistance Analysis and Optimization of Variant Truss Beam Structure Based on Material Properties

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5847
Author(s):  
Xiaohao Li ◽  
Junqi Pan ◽  
Xingchen Zhou
Keyword(s):  
Simulation Analysis ◽  
Impact Load ◽  
Impact Resistance ◽  
Structure Design ◽  
Response Surfaces ◽  
Optimization Strategy ◽  
Buffer Effect ◽  
Characteristic Analysis ◽  
Beam Structure ◽  
The Impact

In order to meet the increasing application requirements with regards to structural impact resistance in industries such as mining, construction, aerospace engineering, and disaster relief and mitigation, this paper designs a variant truss beam structure with a large shrinkage ratio and high impact resistance. Based on the principle of the curved trajectory of scissor mechanisms, this paper conducts a finite element simulation analysis of the impact load on the truss beam structure, a theoretical analysis of the impact response and a relevant prototype bench-top experiment, completing a full study on the impact resistance mechanism of the designed variant truss beam structure under the impact load. In the paper, the buffer effect of the external load impact on the variant truss beam structure is analyzed from the perspective of the energy change of elastic–plastic deformation. This paper proposes an optimization strategy for the variant truss beam structure with the energy absorption rate as the optimization index through extensive analysis of the parameter response surfaces. The strategy integrates analyses on the response characteristic analysis of various configuration materials to obtain an optimal combination of component parameters that ensures that the strength of the truss beam structure meets set requirements. The strategy provides a feasible method with which to verify the effectiveness and impact resistance of a variant truss structure design.

Structure Design and Kinematic Analysis of Stacking Mechanical Arm of Aluminium Ingot

2013 ◽  
Vol 834-836 ◽  
pp. 1414-1417
Author(s):  
Jia Cheng Cai ◽  
Hai Tao Wu ◽  
Tian Chang Yao ◽  
Da Wei Xu
Keyword(s):  
Trajectory Planning ◽  
Kinematic Analysis ◽  
Structure Design ◽  
Motion System ◽  
Dynamics And Control ◽  
Set Up ◽  
And Control ◽  
Important Significance ◽  
Reliable Basis

In view of the existing problem of the traditional aluminium ingot stacking practices, it was important significance to research and develop a stack-manipulator that includes various functions to do portage and stack. According to the demand of stacking, the motion system of the Stack-manipulator based on four degrees was finished. The kinematics equation of the manipulator was set up using the D-H theory, On this base, Some of the kinematics problems of this stack-manipulator were discussed and these reliable basis were provided for the research of the manipulators dynamics and control and trajectory planning.

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