Analysis of Stress and Strain with Variation in Elastic Properties in Symmetric Laminated Composite Rectangular Plate

2017 ◽  
Vol V (VIII) ◽  
pp. 2336-2347
Author(s):  
Yogesh Pratap Singh
Keyword(s):  
Rectangular Plate ◽  
Elastic Properties ◽  
Laminated Composite ◽  
Stress And Strain

scholarly journals Comparative study of elastic properties and mode I fracture energy of carbon nanotube/epoxy and carbon fibre/epoxy laminated composites

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Jyotikalpa Bora ◽  
Sushen Kirtania
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fibre ◽  
Fracture Energy ◽  
Elastic Properties ◽  
Volume Fraction ◽  
Laminated Composites ◽  
Laminated Composite ◽  
Fe Analysis ◽  
Mode I ◽  
Mode I Fracture

Abstract A comparative study of elastic properties and mode I fracture energy has been presented between conventional carbon fibre (CF)/epoxy and advanced carbon nanotube (CNT)/epoxy laminated composite materials. The volume fraction of CNT fibres has been considered as 15%, 30%, and 60% whereas; the volume fraction of CF has been kept constant at 60%. Three stacking sequences of the laminates viz.[0/0/0/0], [0/90/0/90] and [0/30/–30/90] have been considered in the present analysis. Periodic microstructure model has been used to calculate the elastic properties of the laminated composites. It has been observed analytically that the addition of only 15% CNT in epoxy will give almost the same value of longitudinal Young’s modulus as compared to the addition of 60% CF in epoxy. Finite element (FE) analysis of double cantilever beam specimens made from laminated composite has also been performed. It has been observed from FE analysis that the addition of 15% CNT in epoxy will also give almost the same value of mode I fracture energy as compared to the addition of 60% CF in epoxy. The value of mode I fracture energy for [0/0/0/0] laminated composite is two times higher than the other two types of laminated composites.

scholarly journals Experimental method for obtaining the elastic properties of components of a laminated composite

2019 ◽  
Vol 12 ◽  
pp. 1500-1505 ◽  
Author(s):  
Mario Acosta-Flores ◽  
Eusebio Jiménez-López ◽  
Marilú Chávez-Castillo ◽  
Arturo Molina-Ocampo ◽  
Juan José Delfín-Vázquez ◽  
...  
Keyword(s):  
Experimental Method ◽  
Elastic Properties ◽  
Laminated Composite

An Amendment Method for Stress and Strain of Double-Curved Laminated Composite

2007 ◽  
Vol 561-565 ◽  
pp. 757-760
Author(s):  
Yong Shou Liu ◽  
Jun Liu ◽  
An Qiang Wang ◽  
Zhu Feng Yue
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Laminated Composite ◽  
Mesh Size ◽  
Stress And Strain ◽  
Complex Structures ◽  
Coarse Mesh ◽  
Element Analysis ◽  
User Material Subroutine ◽  
Modified Formula

In this paper, an amendment method for stress and strain of double-curved laminated composite is proposed and studied. According to finite element analysis results of the same model with two different mesh size (coarse mesh size 120mm× 300mm and refined mesh size 30mm× 30mm ), stress and strain have been amended with modified formula in user material subroutine (UMAT) subprogram so that the corrected results of model with coarse mesh is similar to the results of model with refined mesh. Using this method, with coarse mesh, a satisfied accuracy results still can be obtained without refining mesh. It’s efficient for design and analysis of complex structures.

A FEM Study on Thermal Stress in Laminated Composite

2008 ◽  
Vol 373-374 ◽  
pp. 786-789 ◽  
Author(s):  
Zhi Li ◽  
Min You ◽  
Xiao Ling Zheng ◽  
Mei Rong Zhao ◽  
Jia Ling Yan
Keyword(s):  
Thermal Stress ◽  
Equivalent Stress ◽  
Laminated Composite ◽  
Fem Analysis ◽  
Interface Layer ◽  
Temperature Cycling ◽  
Stress And Strain ◽  
Von Mises Equivalent Stress ◽  
Von Mises ◽  
Peak Value

The 3-D elasto-plastic finite element method (FEM) was used to analyze the thermal stress in the laminated composite (SiC/6061Al) under the condition of a temperature cycling of 200 0C-30 0C- 200 0C-30 0C. The results from the FEM analysis showed that the hysteretic peak value of the von Mises equivalent stress in the substrate 6061Al was increased significantly as the temperature loading cycles processed on but it was nearly the same after the first cycle in the interface layer SiC of the laminated composite. The elastic strain in the substrate 6061Al varied within the range of -0.15% to 0.15% and the maximum plastic deformation was equal to about 0.26 %. The results also showed that the maximum normal stress Sx was increased from 32.8 MPa to 87.9 MPa after ten cycles and the work-hardening of the substrate 6061Al occurred during the stress and strain hysteresis loop.

EFFECTIVE ELASTIC PROPERTIES FOR A PERIODICALLY LAMINATED COMPOSITE CONSIDERING NONUNIFORM IMPERFECT ADHESION

2017 ◽  
Author(s):  
Humberto Brito ◽  
Luis Eduardo Jaramillo Bustamante ◽  
Ricardo De Medeiros ◽  
Marcelo Leite Ribeiro ◽  
Volnei Tita ◽  
...  
Keyword(s):  
Elastic Properties ◽  
Laminated Composite ◽  
Effective Elastic Properties

An Amendment Method for Stress and Strain of Double-Curved Laminated Composite

2007 ◽  
pp. 757-760
Author(s):  
Yong Shou Liu ◽  
Jun Liu ◽  
An Qiang Wang ◽  
Zhu Feng Yue
Keyword(s):  
Laminated Composite ◽  
Stress And Strain
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