Nonlinear adhesive behavior effects in a cracked orthotropic sheet stiffened by a semi-infinite orthotropic sheet

Bigelow, C. A.

doi:10.1016/0013-7944(86)90205-5

Cited by 10 publications

(9 citation statements)

References 6 publications

(1 reference statement)

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“…(t) is the deduced to the following expression; (7) 1322 displacement at a point t on the stiffener, s. It is known that the nonlinear behaviour of shear strain in adhesive layer gives a significant influence on the load transfer between stiffeners and plate and on the stress field around crack L and hole A [13,14]. The nonlinear behaviour of adhesive bonding layer can be described by the expression as follow;…”

Section: A Displacement Compatibilities For Solution Of Stiffe Ner Bmentioning

confidence: 99%

Analysis of stiffener bonded composite laminate with multiple site damages

Kwon

Pavchok

2011

Proceedings of 2011 6th International Forum on Strategic Technology

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A study on analysis of stress intensity and stiffener debonding damages is presented for stiffener bonded composite laminate with multiple site damages using complex potential solutions. It revealed that the stiffener debondings made a significant influence on significant increase of stress intensity near crack tips and/or slits, which can be led to a catastrophic failure of stiffened composite plates.

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Section: A Displacement Compatibilities For Solution Of Stiffe Ner Bmentioning

confidence: 99%

Analysis of stiffener bonded composite laminate with multiple site damages

Kwon

Pavchok

2011

Proceedings of 2011 6th International Forum on Strategic Technology

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“…It is known that the nonlinear behaviour of shear strain in the adhesive layer, plays an important role on the load transfer between stiffners and skin and consecutively on the stress field around crack L and hole A, in particular either the crack tip approachs near a stiffner or the applied loads are high enough [10,11]. Hence the material nonlinearity can be described by the expression as shown below;…”

Section: Elasto-plastic Behavior Of a Dhes Ive Materialsmentioning

confidence: 99%

Complex potential method for stress intensity analysis in stringer bonded composite panel with impact damage

Jung-Ho

Pavchok

2010

International Forum on Strategic Technology 2010

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“…In the present analysis, skin/stringer delamination is assumed to occur only in the adhesive bondline, even though delamination failure may not be isolated in this region. Since the nonlinear behaviour of the adhesive was found to affect the stress distributions of stiffened composite panels [4], in the present analysis, the nonlinear behaviour of the adhesive is included in the modelling of the skin/stringer load transfer of stiffened composite panels. The shear failure occurs as the shear stress in the adhesive elements reaches the shear strength of the adhesive layer.…”

Section: Failure Criteriamentioning

confidence: 99%

“…It plays an equally important role in composite fuselages. However, a residual strength of damaged composite panels has not been studied extensively although a few studies have appeared [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…A similar model has been proposed for cracked stiffened composite panels by Bigelow [3][4][5]. In her work, the model was established by a set of integral equations using Green's functions and the complex variable theory of orthotropic elasticity [12,13], and several numerical studies were conducted for a crack plate stiffened by a semi-infinite orthotropic sheet.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Damage Tolerance Analysis of Cracked Stiffened Composite Panels

Chen¹,

Shen²,

Wang³

2001

Journal of Composite Materials

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An approach based on a displacement compatibility model is developed for stiffened composite panels with a crack. Some important improvements on the damage tolerance analysis of the stiffened composite panels have been made in comparison with previous work. Some new results are obtained regarding the effects of adhesive nonlinearity, stringer stiffness and bending, and stringer spacing on strengths and crack growth behaviours of bonded skin/stringer panels. The study indicates that the adhesive nonlinearity benefits the load bearing capacity of the panels. When the stringer is quite thick in comparison to the skin thickness, its out-of-plane bending will lower panel failure strains. Increasing stringer stiffness can not often guarantee the high failure strains of bonded skin/stringer composite panels. As the stringer stiffness exceeds some value, its increase has a negative effect on the load bearing capacity of the panels. For a given ratio of stringer stiffness to panel stiffness, the failure strains of the panels increase as stringer spacing, Wa, decreases. Predictions for failure strains and crack arrest capability agree well with experimental results for several composite panel configurations.

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Nonlinear adhesive behavior effects in a cracked orthotropic sheet stiffened by a semi-infinite orthotropic sheet

Cited by 10 publications

References 6 publications

Analysis of stiffener bonded composite laminate with multiple site damages

Analysis of stiffener bonded composite laminate with multiple site damages

Complex potential method for stress intensity analysis in stringer bonded composite panel with impact damage

Damage Tolerance Analysis of Cracked Stiffened Composite Panels

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