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FATIGUE CRACK GROWTH IN MODE II OF ADHESIVELY JOINED COMPOSITES

Anders Biel (Technical University of Denmark) Helmuth Toftegaard (Technical University of Denmark)

 

Experiments are performed, to derive fatigue crack propagation data of adhesively joined composites loaded in shear.

 

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INITIATION OF DELAMINATIONS INDUCED BY TRANSVERSE CRACKS IN CROSS-PLY LAMINATES UNDER STATIC LOADINGS: MODELLING AND EXPERIMENTS

Elisa Novello (University of Padova) Paolo Andrea Carraro (University of Padova) Michele Zappalorto (University of Padova) Marino Quaresimin (University of Padova)

 

In the present work, the delamination onset induced by the presence of transverse cracks in cross-ply laminates subjected to static loadings is thoroughly investigated, both analytically and experimentally.

 

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MODELING DELAMINATION MIGRATION IN MULTI-DIRECTIONAL COMPOSITE LAMINATES

Tong-Earn Tay (National University of Singapore) X.F. Hu (National University of Singapore) M. Tirvaudey (École normale supérieure de Cachan) Vincent B.C. Tan (National University of Singapore)

 

The present study develops an integrated extended finite element method (XFEM) and cohesive element (CE) method for 3Dl delamination migration in multi-directional composite laminates, and validates the results with experiment performed on a double-cantilever beam (DCB) with multi-directional lay-up.

 

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MODELING FATIGUE-DRIVEN DELAMINATION USING A THICK LEVEL SET INTERFACE MODEL

Mohammad Latifi (Delft University of Technology) Frans Van der Meer (Delft University of Technology) Bert Sluys (Delft University of Technology)

 

In this paper a combination of the thick level set method and interface elements is used to develop a new discontinuous method for modeling fatigue driven delamination in composite.

 

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NEW TEST SET-UP FOR MEASURING RATE-DEPENDENT MODE-I DELAMINATION PROPERTIES OF UNIDIRECTIONAL AND WOVEN COMPOSITES

Siebe Spronk (Ghent University) Joris Degrieck (Ghent University) Francisco A. Gilabert (Ghent University) F. Allayes (Ghent University) Wim Van Paepegem (Ghent University)

 

A new experimental setup is designed to investigate the mode-I delamination of specimens after an impact load. Specimens are tracked during a test using a contactless optical method. Finite element analysis is used to extract the fracture toughness.

 

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NOVEL STITCHING YARN FOR IMPROVED DELAMINATION PERFORMANCE OF CARBON FIBRE COMPOSITES

Thomas Dooher (Ulster University-School of Engineering) Cormac McGarrigle (Ulster University-School of Engineering) Dorian Dixon (Ulster University-School of Engineering) Alistair McIlhagger (Ulster University-School of Engineering) Eileen Harkin-Jones (Ulster University-School of Engineering) Edward Archer (Ulster University-School of Engineering)

 

Comparison between a commercial sewing yarn and those made with high temperature thermoplastics for improving the through thickness properties of fibre reinforced polymer composites.

 

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PREDICTING DEBONDING AND DELAMINATION IN ADHESIVELY BONDED T-JOINTS

Xiaodong Xu (University of Bristol) Michael Wisnom (University of Bristol) Stephen Hallett (University of Bristol) Gary Holden (BAE Systems) Barbara Gordon (BAE Systems)

 

Different levels of FE modelling were conducted, in order to predict debonding and delamination in an adhesively bonded T-joint pull-off (T-pull) test.

 

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PREDICTING LOW VELOCITY IMPACT DAMAGES IN STITCHED COMPOSITE LAMINATE

Jonny Herwan (Aerospace Engineering Dept. Tokyo Metropolitan University) Atsushi Kondo (MSC. Software) Naoyuki Watanabe (Tokyo Metropolitan University)

 

Quasi static indentation simulation has been developed employing cohesive contact surface and spring connector element as the main techniques. The predicted load displacement curves and delamination areas are closed to the experimental one.

 

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PREDICTION OF DELAMINATION OF STEEL-POLYMER COMPOSITES USING COHESIVE ZONE MODEL

Jinhyeok Jang (Seoul National University) Minchang Sung (Seoul National University) Sungjin Han (Seoul National University) Woong-Ryeol Yu (Seoul National University)

 

Prediction of delamination of steel-polymer composites using cohesive zone model and peeling tests.

 

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STRATEGIES FOR MODELLING DELAMINATION GROWTH USING ISOGEOMETRIC CONTINUUM SHELL ELEMENTS

Joris Remmers (Eindhoven University of Technology) Martin Fagerström (Chalmers University of Technology)

 

In this paper we focus on the further development of the isogeometric continuum shell element to allow for an automated insertion of discontinuities.

 

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