The Influence of Loading Rate on the Mode III Interlaminar Fracture Toughness of Composite/Steel Bi-material Systems

Pennas, D.; Cantwell, W.J.

doi:10.1177/0021998309094964

Cited by 7 publications

(4 citation statements)

References 27 publications

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“…It is mainly characterized by edge crack torsion (ECT) test specimens with specimen size and external loading system. 80 Pennas and Cantwell 86 investigated the mode III fracture toughness of a glass/epoxy steel bimaterial system using ECT test geometries. Audd et al 87 conducted edge crack torsion tests on laminated composites, with ECT specimens prepregged with carbon/epoxy tape.…”

Section: Adhesion Test Methods Of Stainless Steel and Resinmentioning

confidence: 99%

Surface Treat Method to Improve the Adhesion between Stainless Steel and Resin: A Review

Du,

Zhou,

et al. 2023

ACS Omega

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Combining metal and polymer into hybrid composite materials is finding increasing interest in many industries. Special attention is being paid to increase the adhesion between the metal and polymer interface. In this paper, the current research progress of surface treatment methods for improving the interfacial adhesion of stainless steel and resin is reviewed. It involves the stainless steel surface treatment method, resin surface treatment method, and adhesion test methods of stainless steel and resin. The methods of improving the interfacial adhesion of stainless steel and resin are summarized and prospected according to the research status.

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Section: Adhesion Test Methods Of Stainless Steel and Resinmentioning

confidence: 99%

Surface Treat Method to Improve the Adhesion between Stainless Steel and Resin: A Review

Du,

Zhou,

et al. 2023

ACS Omega

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“…Lee 28 was the first researcher who proposed the edge crack torsion (ECT) test method to test the mode III fracture toughness by applying a torsional load to a rectangular laminated plate at four loading points. Pennas, 29 Browning, 30,31 and Mehrabadi et al 32 studied the mode III stratified fracture of composite materials using the ECT method, which is an effective test method for the mode III fracture toughness that is widely used in engineering applications at present. 33 Kootte et al [34][35][36] developed the ECT test method for characterizing the mode III fracture of the skin-stiffener interface induced by post-buckling.…”

Section: Introductionmentioning

confidence: 99%

Post-buckling failure analysis of composite stiffened panels considering the mode III fracture

Wang¹,

Chen²,

Wang

et al. 2022

Journal of Composite Materials

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Fully utilizing the post-buckling capacity of stiffened composite panels is important to reduce the weight of aeronautical composite structures. However, owing to the complex post-buckling failure modes and mechanisms, there are no effective analysis methods. This paper explores the impacts of the mode III fracture energy on the damage behavior of the stiffener–skin interface of composite stiffened panels under post-buckling conditions. To characterize the bonding interface damage, an interface damage initiation criterion considering the effects of through-thickness compression on the shear failure was used and combined with the Reeder damage extension criterion, which considers the mode III fracture. The mode III fracture toughness characteristics of the damage evolution of the stiffener–skin interface were obtained using the edge crack torsion (ECT) test method. Moreover, the compressive deformation response, buckling load, buckling modes, failure load, and failure modes of the panel were obtained by a compression test of I-shaped stiffened panels. Based on the aforementioned experimental data and numerical model, the post-buckling behavior of the I-shaped stiffened composite panels with an open cross-section stiffener was studied. It was found that the mode III fracture energy caused by the longitudinal shear stress τ31 played a major role in the stiffener–skin interface damage extension of the stiffened panels. Therefore, the mode III fracture behavior should not be ignored in the post-buckling analysis. The numerical analysis method developed can accurately predict the damage initiation and evolution processes of the composite panel interface. The method can be effectively used for post-buckling analysis of aeronautical composite panels.

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“…The Edge Crack Torsion (ECT) test [7][8][9][10][11][12] supposed an evolution in and significant contribution to the study of interlaminar fracture under mode III loading, being the most widely used of all tests for this type of loading. It is based on the application of a torque at the embedded end of the specimen, or a torque at both ends of the specimen.…”

Section: Introductionmentioning

confidence: 99%

Analysis of mode III interlaminar fracture toughness of laminated composites using a novel testing device

López-Menéndez

Viña

Argüelles

et al. 2017

Engineering Fracture Mechanics

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The delamination phenomenon is one of the major failure mechanisms in composite materials formed by the stacking of successive layers. The fracture mode that has been studied the least within this phenomenon is mode III, due to the difficulty its simulation involves. A novel test device is presented in this paper that allows laminated composites to be subjected to this mode of loading. Characterization tests were carried out on two materials with different matrices in order to analyse the influence of the type of matrix in the fracture behaviour under mode III-fracture. Furthermore, two analytical models adapted to this test methodology have been used for the determination of the value of the energy release rate for this mode of loading in both materials. The load was applied at different distances from the front of the notch, this being another parameter that was analysed. From the results obtained it follows that the device used in this work allows a dominant mode III and that this result holds for different points of load application studied.

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The Influence of Loading Rate on the Mode III Interlaminar Fracture Toughness of Composite/Steel Bi-material Systems

Cited by 7 publications

References 27 publications

Surface Treat Method to Improve the Adhesion between Stainless Steel and Resin: A Review

Surface Treat Method to Improve the Adhesion between Stainless Steel and Resin: A Review

Post-buckling failure analysis of composite stiffened panels considering the mode III fracture

Analysis of mode III interlaminar fracture toughness of laminated composites using a novel testing device

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