scholarly journals Analytical, experimental and finite element analysis of the width/diameter hole ratio effect in vinylester/carbon hybrid twill weave composites

2020 ◽  
Vol 2 ◽  
pp. 100033
Author(s):  
Batista ACMC ◽  
Tinô SRL ◽  
Fontes RS ◽  
Nóbrega SHS ◽  
Aquino EMF
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Ratio Effect ◽  
Diameter Hole ◽  
Twill Weave

Stress concentration and strength prediction of 2×2 twill weave fabric composite with a circular hole

2018 ◽  
Vol 53 (4) ◽  
pp. 463-474 ◽  
Author(s):  
Emre Özaslan ◽  
Ali Yetgin ◽  
Bülent Acar
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Concentration ◽  
Correction Factor ◽  
Average Stress ◽  
Strength Prediction ◽  
Element Analysis ◽  
Characteristic Distance ◽  
Twill Weave ◽  
Stress Criteria

Stress concentration and strength prediction of 2 × 2 twill weave carbon fiber reinforced composite specimens with different hole sizes are investigated on numerical and analytical basis. Stress distribution around the hole is obtained using Lekhnitskii’s model together with Tan’s finite width correction factor and also finite element analysis. Validity of Lekhnitskii’s formula together with Tan’s correction is demonstrated for 2 × 2 twill weave composites with different w/d ratios. Tan’s correction factor is compared with finite element analysis results at a characteristic distance away from hole tip where the stresses are important for strength prediction. Applicability of point stress criteria and average stress criteria strength prediction methods for open hole specimens to 2 × 2 twill weave material is demonstrated. The performances of the point stress criteria and average stress criteria methods are compared in the case of eccentric tension loading. All analytical and numerical results are verified by experimental study.

Advanced Finite Element Analysis to Predict Off-Axis Crushing Behaviour of Composite Aero-Structures

2011 ◽  
Vol 488-489 ◽  
pp. 41-44
Author(s):  
N. Ghafari-Namini ◽  
H. Ghasemnejad ◽  
M. Limbachiya
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Energy Absorption ◽  
Loading Condition ◽  
Experimental Result ◽  
Element Analysis ◽  
Applied Model ◽  
Box Structures ◽  
Twill Weave

Advanced finite element analysis (FEA) is carried out to simulate the off-axis crushing process of glass/epoxy twill/weave composite box structures. The FE results were compared to relevant experimental result and it was shown that the applied model is capable to predict the damage behaviour and energy absorption of composite box aero-structures under off-axis loading condition.

Finite element analysis on dental implant[ndash ]supported prostheses without passive fit

2002 ◽  
Vol 11 (1) ◽  
pp. 30-40 ◽  
Author(s):  
Chatchai Kunavisarut ◽  
Lisa A. Lang ◽  
Brian R. Stoner ◽  
David A. Felton
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dental Implant ◽  
Element Analysis ◽  
Passive Fit
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