Buckling behaviour and delamination growth in impacted composite specimens under fatigue load: an experimental study

Melin, Lars; Schön, Joakim

doi:10.1016/s0266-3538(01)00085-9

Cited by 44 publications

(28 citation statements)

References 17 publications

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“…The fatigue testing from this investigation showed no increase in damage size with fatigue cycle, except at near the failure point. This contrasts with the results of this paper and those from the literature [14,16], where a gradual damage size increase was observed during the fatigue loading. This may be attributed to the anti-buckling guides being used to prevent any premature out of plane buckling during the compression fatigue tests.…”

Section: Discussioncontrasting

confidence: 99%

Control of Compressive Fatigue Delamination Propagation of Impact Damaged Composites Using Discrete Thermoplastic Interleaves

et al. 2014

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A novel delamination damage control and management concept is demonstrated showing how, through selective placement of discrete thermoplastic film interleaves, it is possible to manipulate the formation of impact damage and control its subsequent propagation during compressive fatigue cyclic loading.This process has been shown to significantly improve the fatigue life of the composite panels tested by an average of 13 times. It is proposed that this method of controlling delamination damage growth may lead to lower weight damage tolerant composite designs resulting in more cost effective composite structures.2

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Section: Discussioncontrasting

confidence: 99%

Control of Compressive Fatigue Delamination Propagation of Impact Damaged Composites Using Discrete Thermoplastic Interleaves

et al. 2014

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“…Another choice is to resort to more detailed analyses of the local field by using stereovision [21,22] since out of plane motions may cause in-plane distorsions. It was followed to analyze buckling in composite materials [23]. A last choice is to still use Euler-Bernoulli kinematics, but not with the usual constraints related to the assumption of elastic behavior.…”

Section: Kinematic Field: Analysis Of Local Bucklingmentioning

confidence: 99%

Calibration of constitutive models of steel beams subject to local buckling by using digital image correlation

Hild¹,

Roux²,

Guerrero³

et al. 2011

European Journal of Mechanics - A/Solids

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It is proposed to identify the behavior of steel beams prior to and after the inception of local buckling by using Digital Image Correlation. Full field measurements are used to evaluate kinematic and static fields for determining constitutive laws. It enables for the detection of local buckling inception and the evaluation of the postbuckled behavior. Constitutive models are tuned by using measured Euler-Bernoulli kinematics.

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“…In their work with 2D plane strain FE models, they suggest that buckling of a composite plate with multiple delaminations arising from out-of-plane impact damage can be simplified to buckling of a plate with a single delamination at a critical level in the laminate. Melin and Schön (2001) report this critical level to be at a depth of around 10-20% of the total thickness. The plate model is applied to the example problems reported in the experimental studies of Curtis et al (1993), Melin and Schön (2001), Melin et al (2002) and Chen et al (2001).…”

Section: Introductionmentioning

confidence: 96%

“…Melin and Schön (2001) report this critical level to be at a depth of around 10-20% of the total thickness. The plate model is applied to the example problems reported in the experimental studies of Curtis et al (1993), Melin and Schön (2001), Melin et al (2002) and Chen et al (2001). The model is also used to show whether the initial propagation is stable or unstable, and to evaluate sensitivity to parametric variation.…”

Section: Introductionmentioning

confidence: 96%

Post-buckled propagation model for compressive fatigue of impact damaged laminates

Rhead

Butler

Hunt

2008

International Journal of Solids and Structures

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a b s t r a c tAn analytical model for prediction of compressive fatigue threshold strains in composite plates with barely visible impact damage (BVID) is presented. The model represents the complex damage morphology as a single circular delamination at a critical level and calculates the strain at which thin-film buckling of the circular delaminated region occurs. The threshold strain is defined as the strain at which the strain energy release rate for the fracture of post-buckled delaminated plies along the delamination is equal to the critical Mode I value (G 1C ) for the resin. The model predicts the critical through-thickness level for delamination, the stability of delamination growth and also the sensitivity to experimental error in geometric measurements of the damage area. Results obtained using the model show an agreement of fatigue strain to within 4% of experimental values for four sets of data reported in the literature.

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Buckling behaviour and delamination growth in impacted composite specimens under fatigue load: an experimental study

Cited by 44 publications

References 17 publications

Control of Compressive Fatigue Delamination Propagation of Impact Damaged Composites Using Discrete Thermoplastic Interleaves

Control of Compressive Fatigue Delamination Propagation of Impact Damaged Composites Using Discrete Thermoplastic Interleaves

Calibration of constitutive models of steel beams subject to local buckling by using digital image correlation

Post-buckled propagation model for compressive fatigue of impact damaged laminates

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