2001
DOI: 10.1177/002199801772661597
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Modeling of Process Induced Residual Stresses in Resin Transfer Molded Composites with Woven Fiber Mats

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Cited by 6 publications
(17 citation statements)
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“…Typically, these models involve three aspects: first, the coupled solution of cure kinetics and heat transfer equations to obtain the temperature and degree of cure profiles in the part; this is especially important for thick composites [8][9][10]; second, the development of models for resin, laminate, and composite property evolution with cure and temperature; and third, the solution of the structural mechanics equations to estimate the induced strains and residual stresses in the part. Models for composite property evolution during cure can be based on direct experimental measurements on the composite itself during cure [11][12][13][14]. Alternatively, the properties of the matrix resin are measured as a function of the degree of cure and temperature.…”
Section: Background: Simulation Of Residual Stresses At Part Levelmentioning
confidence: 99%
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“…Typically, these models involve three aspects: first, the coupled solution of cure kinetics and heat transfer equations to obtain the temperature and degree of cure profiles in the part; this is especially important for thick composites [8][9][10]; second, the development of models for resin, laminate, and composite property evolution with cure and temperature; and third, the solution of the structural mechanics equations to estimate the induced strains and residual stresses in the part. Models for composite property evolution during cure can be based on direct experimental measurements on the composite itself during cure [11][12][13][14]. Alternatively, the properties of the matrix resin are measured as a function of the degree of cure and temperature.…”
Section: Background: Simulation Of Residual Stresses At Part Levelmentioning
confidence: 99%
“…Cure process models provide a valuable tool to understand the effect of composite microstructure, part geometry, and processing parameters on the development of residual stresses; such models also provide a relatively inexpensive virtual means of optimizing cure processing to minimize the residual stresses. Process models for composite cure are available that address residual stress development at the part level [6,[8][9][10][11][12][13][14][15][16][17][18] or at the "meso" levels involving the microstructure or fiber-matrix interface [19][20][21][22][23]. However, a systematic framework for bridging the information at the two scales has not been demonstrated; such bridging of information is critical for obtaining realistic estimates of residual stresses at the fiber matrix interface and for arriving at an understanding of the efficacy of reinforcement.…”
Section: Introductionmentioning
confidence: 99%
“…Thus, the spring-in angle was investigated alternatively to reduce the number of design parameters. It is related to the perpendicularity as 2 φ ∆ = L T pe (18) where T pe is the perpendicularity; L/2 is the half-length of the single-stiffener structure; and ∆φ is the spring-in angle. Figure 10: Tolerances of the single-stiffener structure…”
Section: Model Developmentmentioning
confidence: 99%
“…The dimension variations of composites have been studied experimentally [3][4][5], analytically [6][7][8][9][10][11][12][13] and numerically [14][15][16][17][18][19][20][21][22].…”
Section: Introductionmentioning
confidence: 99%
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