scholarly journals Finite Element Analysis of Loading Area Effect on Sandwich Panel Behaviour Beyond the Yield Limit

10.5772/50433 ◽  
2012 ◽  
Author(s):  
Salih Akour ◽  
Hussein Maaitah
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Sandwich Panel ◽  
Yield Limit ◽  
Element Analysis ◽  
Area Effect

Finite Element Analysis (FEA) of Honeycomb Sandwich Panel for Continuum Properties Evaluation and Core Height Influence on the Dynamic Behavior

2011 ◽  
Vol 326 ◽  
pp. 1-10 ◽  
Author(s):  
Hammad Rahman ◽  
Rehan Jamshed ◽  
Haris Hameed ◽  
Sajid Raza
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Solution ◽  
Vibration Analysis ◽  
Sandwich Structure ◽  
Sandwich Panel ◽  
Fe Analysis ◽  
Element Analysis ◽  
Honeycomb Sandwich ◽  
Core Height

Finite element analysis of honeycomb sandwich panel has been performed by modeling the structure through three different approaches. Continuum properties are calculated through analytical solution and verified through FE analysis of bare core. In addition to that the thickness of core has also been varied in all the three approaches in order to study its effect on vibration analysis of sandwich structure.

On the Importance of Work-Conjugacy and Objective Stress Rates in Finite Deformation Incremental Finite Element Analysis

2013 ◽  
Vol 80 (4) ◽  
Author(s):  
Wooseok Ji ◽  
Anthony M. Waas ◽  
Zdenek P. Bazant
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Sandwich Panel ◽  
Stress Rate ◽  
Solution Strategy ◽  
Elastic Solids ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Bifurcation Buckling ◽  
Objective Stress

This paper is concerned with two issues that arise in the finite element analysis of 3D solids. The first issue examines the objectivity of various stress rates that are adopted in incremental analysis of solids. In doing so, it is revealed that large errors are incurred by an improper choice of stress rate. An example problem is presented to show the implications of the choice of stress rate. The second issue addresses the need to maintain work-conjugacy in formulating and solving bifurcation buckling problems of 3D elastic solids. Four popular commercial codes are used to obtain buckling loads of an axially compressed thick sandwich panel, and it is shown that large errors in buckling load predictions are incurred as a result of violating the requirement of work-conjugacy. Remedies to fix the errors in the numerical solution strategy are given.

scholarly journals Sandwich Panel Behavior for Core Loading Beyond the Yield Limit

2018 ◽  
Vol 12 (3) ◽  
pp. 117 ◽  
Author(s):  
Salih Akour ◽  
Hussein Maaitah
Keyword(s):  
Finite Element ◽  
Yield Point ◽  
Sandwich Panel ◽  
Optimization Technique ◽  
Element Model ◽  
Point Load ◽  
Core Material ◽  
Yield Limit ◽  
Element Analysis ◽  
The Core

The effect of loading core material beyond its yield limit on sandwich panel behavior is investigated. Different core materials of different stiffness are studied. The panel modeled using a finite element analysis package. Simply supported boundary conditions are applied on all sides of the panel. The effect of core stiffness is investigated parametrically by utilizing univariate search optimization technique. The load has been increased in quasi–static steps till face sheets reach the yield point. The model has been validated analytically and experimentally for selected cases. The finite element model results show very good agreement with the analytical and the experimental results investigation. It is proved in this study that the load carrying capacity of the panel increases as the core material goes beyond the yield point. Load transmitted to the face sheets increases as the core stiffness gets softer. As core material is getting stiffer face sheets of sandwich panel yield before the core. 

Finite Element Analysis of Ship Deck Sandwich Panel

2018 ◽  
Vol 874 ◽  
pp. 134-139 ◽  
Author(s):  
S.H. Sujiatanti ◽  
Achmad Zubaydi ◽  
A. Budipriyanto
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Sandwich Panel ◽  
Steel Structure ◽  
Core Material ◽  
Ship Structures ◽  
Element Analysis ◽  
Maximum Deformation ◽  
Resin Core ◽  
The Finite Element Analysis

Recently various types of sandwich panel are applied for constructing bridge and ship structures. Sandwich panel is material that consists of lightweight core material and two metal faceplates. The application of sandwich panel in ship structures makes the structure less-complex and ship’s selfweight lighter because of the reduction of secondary stiffeners. This paper discusses sandwich panel that was fabricated using synthetic resin core material and two steel faceplates. This study is aimed to analyze stresses developed in the sandwich panel of 750 GT Ro-Ro ship car deck structure when it was subjected to the deck design load. The finite element analysis was carried out to obtain the stress distribution and maximum deformation on the car deck structures. The stress of the ship car deck constructed using conventional steel structure, i.e. steel plate and stiffener, was compared with the stress of the deck that was built using sandwich panel.

Study on Block Structure Optimization of Single Degree of Freedom Crankshaft Fillet Rolling Machine

2013 ◽  
Vol 655-657 ◽  
pp. 222-226
Author(s):  
Shao Jun Han ◽  
Chao Chen ◽  
Xiong Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Block Structure ◽  
Structure Optimization ◽  
Yield Limit ◽  
Analysis Software ◽  
Element Analysis ◽  
Single Degree Of Freedom ◽  
Single Degree

Made a static analysis of the SDOF rolling arm of the crankshaft rolling mechanism by using ANSYS finite element analysis software, obtained stress distribution and deformation of the rolling arm in clamping condition, then optimized the size of the rolling arm. Achieve the purpose of reducing the weight of the rolling arm,within the yield limit of the material.

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