The nondestructive evaluation of the GFRP composite plate with an elliptical hole under fatigue loading conditions

2018 ◽  
Vol 112 ◽  
pp. 31-43 ◽  
Author(s):  
Adam Stawiarski
Keyword(s):  
Nondestructive Evaluation ◽  
Composite Plate ◽  
Elliptical Hole ◽  
Fatigue Loading ◽  
Loading Conditions ◽  
Gfrp Composite

scholarly journals Stress analysis of infinite laminated composite plate with elliptical cutout under different in plane loadings in hygrothermal environment

2021 ◽  
Vol 8 (1) ◽  
pp. 1-12
Author(s):  
Ashok Magar ◽  
Achchhe Lal
Keyword(s):  
Stress Concentration ◽  
Stress Distribution ◽  
Composite Plate ◽  
Volume Fraction ◽  
Elliptical Hole ◽  
Laminated Composite ◽  
Laminated Composite Plate ◽  
Concentration Changes ◽  
Hygrothermal Environment ◽  
Plate Analysis

Abstract This paper presents the solution of stress distribution around elliptical cutout in an infinite laminated composite plate. Analysis is done for in plane loading under hygrothermal environment. The formulation to obtain stresses around elliptical hole is based on Muskhelishvili’s complex variable method. The effect of fibre angle, type of in plane loading, volume fraction of fibre, change in temperature, fibre materials, stacking sequence and environmental conditions on stress distribution around elliptical hole is presented. The study revealed, these factors have significant effect on stress concentration in hygrothermal environment and stress concentration changes are significant with change in temperature.

Design and Analysis of an FSAE Vehicle Chain Sprocket under Static and Fatigue Loading Conditions

2021 ◽  
Vol 14 (3) ◽  
Author(s):  
Piyush Arora ◽  
Mihir Rajesh Agrawal ◽  
Punish Pal Singh ◽  
N Gobinath ◽  
M Feroskhan
Keyword(s):  
Fatigue Loading ◽  
Loading Conditions

Characterizing the Cyclic Behaviour of Extruded AZ31 Magnesium Alloy

2012 ◽  
Vol 730-732 ◽  
pp. 727-732 ◽  
Author(s):  
Luís G. Reis ◽  
Vitor Anes ◽  
Bin Li ◽  
Manuel de Freitas
Keyword(s):  
Magnesium Alloy ◽  
Path Dependence ◽  
Fatigue Loading ◽  
Multiaxial Fatigue ◽  
Az31 Magnesium Alloy ◽  
Loading Path ◽  
Loading Conditions ◽  
Cyclic Behaviour ◽  
Significant Loading ◽  
Monotonic Properties

In this paper, the mechanical behaviour of extruded AZ31 magnesium alloys under multiaxial fatigue loading conditions is studied. The monotonic properties of the AZ31 magnesium alloy were determined by tests on the specimens which were machined from extruded rods. Then, the cyclic deformation under multiaxial loading conditions was simulated by ANSYS and a plasticity program with the Jiang & Sehitoglu plasticity model. The fatigue lives were estimated by the critical plane models coupled with Coffin-Manson rule, such as Findley, Fatemi-Socie, Brown-Miller, SWT and Liu models. Four loading paths were considered with different levels of non-proportionality, the results show significant loading path dependence.

An analytical investigation of the best stacking sequence of a symmetric laminated composite plate weakened by a hole

2018 ◽  
Vol 24 (5) ◽  
pp. 1387-1404 ◽  
Author(s):  
Nirav P Patel ◽  
Dharmendra S Sharma
Keyword(s):  
Inverse Problem ◽  
Composite Plate ◽  
Fitness Function ◽  
Hybrid Genetic Algorithm ◽  
Laminated Composite ◽  
Stacking Sequence ◽  
Loading Conditions ◽  
Laminated Composite Plate ◽  
Variable Approach ◽  
Fiber Arrangement

The investigation of the best set of fiber arrangements of a composite laminated structure under various loading conditions is very challenging and the analytical derivation is also complex when the laminate contains various shaped discontinuities. In this article, the best stacking sequence is investigated by treating it as an inverse problem, in which the best fiber arrangement is predicted considering maximization of the failure strength as an objective function. This inverse problem is solved using the hybrid genetic algorithm that operates the Tsai–Hill quadratic criterion as a fitness function and stacking sequence as design variables. A 4, 8 and 16-layered symmetrical laminated composite plate containing a triangular and square hole is optimized by considering the in-plane loading conditions, and the stresses in the Tsai–Hill quadratic criterion are calculated by an analytical solution of Muskhelishvili’s complex variable approach. The problem of the calculation of stresses and failure strengths from the estimated fiber arrangement data is presented as a forward problem. The effect of hole geometry and loading angle on an optimum design is also presented. The presented approach will be useful as an effective tool to study composites.

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