Failure of fibrous anisotropic materials under combined loading

Lim, Won-Kyun; Jeong, Woo-Kil; Tschegg, E. K.

doi:10.1016/j.compositesb.2009.06.001

Cited by 8 publications

(6 citation statements)

References 10 publications

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“…From figures 6(a)-(d), it can be seen that in a dry and wet environment, when the laying angle of G/CFRPHC laminates increases from 0°to 90°, its tensile strength decreases continuously. Consistent with the conclusion of [31,32]. Therefore, when designing G/ CFRPHC laminates in the hydrothermal environment, the off-axis angle should be strictly controlled to prevent huge deflection angles from causing too low tensile strength of G/CFRPHC laminates.…”

Section: The Influence Of Laying Angle On the Tensile Strength Of G/cfrphc Under Hydrothermal Environmentsupporting

confidence: 71%

Macro-mechanical analysis of tensile strength of glass/carbon fiber reinforced plastics hybrid composites under hydrothermal environment

Zhao

Sun

Wang

et al. 2021

Mater. Res. Express

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The material properties of composite materials are affected by changes in temperature and moisture. This study used the glass/carbon fiber reinforced plastic hybrid composite (G/CFRPHC) laminate as the research object. The stiffness and strength of the composite lamina were expressed as a function of hydrothermal parameters. Based on classical lamination theory(CLT) and macro-mechanical analysis, using MATLAB programming, the tensile strength of G/CFRPHC laminates under a hydrothermal environment was studied. In addition, the influence of temperature, ply thickness, ply stacking sequence, and ply angle on the tensile strength of G/CFRPHC laminates under a hydrothermal environment was discussed. The results show that the tensile strength of G/CFRPHC laminates decreases with the increase of temperature and laying angle in the temperature range of 20℃~110℃ in the hydrothermal environment (moisture absorption rate C1=0.5%). Furthermore, for the G/CFRPHC laminates with laying modes of (02G/90mC)S, (04G/90mC)S, (06G/90mC)S, as m increases, their tensile strength gradually decreases. The tensile strength of G/CFRPHC laminates with the same ply angle but different ply stacking sequence is also not the same.

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Section: The Influence Of Laying Angle On the Tensile Strength Of G/cfrphc Under Hydrothermal Environmentsupporting

confidence: 71%

Macro-mechanical analysis of tensile strength of glass/carbon fiber reinforced plastics hybrid composites under hydrothermal environment

Zhao

Sun

Wang

et al. 2021

Mater. Res. Express

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“…The development of composite structures presupposes the search for solutions to many complex urgent problems. Note that the analysis of the combined loading of composite panels is devoted to the works [2][3]. Monographs [4][5][6] include the most significant modern theories of calculation and design of composite thin-walled structures.…”

Section: Introductionmentioning

confidence: 99%

Design of thin composite skins of anisotropic structure of bearing panels of aircraft structures in post-buckling state under combined loading

Mitrofanov

Lebedevs

Urbaha

2021

20th International Scientific Conference Engineering for Rural Development Proceedings

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Applied investigations of composite aircraft structures show that thin walls or panels of an anisotropic structure are effective in some cases. For thin-walled structures at loads above the operational level, buckling is allowed. Moreover, the task of design based on the post-buckling state becomes much more complicated when it is necessary to take into account the combined loading under biaxial compression and shear. The supercritical behaviour of anisotropic structure's thin panels geometrically nonlinear relations is presented in this paper. For satisfactory description of the panel's supercritical behaviour under hinged support combined loading the form of the deflection function is proposed. The analytical solution based on the Bubnov-Galerkin method how to determine the nonlinear stress-strain state allows obtaining a nonlinear equation connecting the acting flows with the deflection amplitude. Based on the definition of the stress function, equations are written for calculating all components of membrane stresses. Also, expressions are presented for determining bending stresses. It is desirable to take into account when the stress-strain state for geometrically nonlinear behaviour of panels of medium thickness has been determined. The relations of the mechanics for composite panels are presented and, also, the general form of equality for the stresses acting in a monolayer of the composite under combined loading. Further, when using Tsai's criterion for a monolayer, as well for the received nonlinear equations of the stress-strain state with supercritical behaviour, a nonlinear equation was obtained to determine the optimal thickness of the anisotropic panel under its combined loading.

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“…Previous biaxial strength studies on paperboard have been focused mostly on the sheet without crack 1–4 . The present study assesses the developed theory and experiment for the prediction of critical stresses and crack propagation angles of paperboard with crack subjected to biaxial normal stresses.…”

Section: Introductionmentioning

confidence: 99%

“…Previous biaxial strength studies on paperboard have been focused mostly on the sheet without crack. [1][2][3][4] The present study assesses the developed theory and experiment for the prediction of critical stresses and crack propagation angles of paperboard with crack subjected to biaxial normal stresses. For experimental work, a cruciform specimen was designed by FEM analysis and the biaxial strength characteristic of an inclined crack in a paperboard cruciform specimen was evaluated.…”

Section: Introductionmentioning

confidence: 99%

The characteristics of an inclined crack in anisotropic paperboard under biaxial loading

Ahmad

Park

2013

Fatigue Fract Eng Mat Struct

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In this paper, a fracture mechanics method was applied for the evaluation of crack behaviour in anisotropic paperboard subjected to biaxial uniform loading. The experiment was performed to determine the crack propagation angle and the fracture strength of paperboard under biaxial loading with the cruciform specimen optimized by FEM simulation. The effects of biaxial loads on the critical stress ratio and crack propagation angle for various inclination angles were investigated. The experimental results were compared with theoretical results, which were calculated by using the Normal Stress Ratio Criteria. The experimental results for crack propagation angle and critical stress show good agreement with theoretical results.

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Failure of fibrous anisotropic materials under combined loading

Cited by 8 publications

References 10 publications

Macro-mechanical analysis of tensile strength of glass/carbon fiber reinforced plastics hybrid composites under hydrothermal environment

Macro-mechanical analysis of tensile strength of glass/carbon fiber reinforced plastics hybrid composites under hydrothermal environment

Design of thin composite skins of anisotropic structure of bearing panels of aircraft structures in post-buckling state under combined loading

The characteristics of an inclined crack in anisotropic paperboard under biaxial loading

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