Progressive Failure Analysis of Laminated Composite Plates With Two Serial Pinned Joints

Turan, Kadir; Kaman, Mete Onur; Gür, Mustafa

doi:10.1080/15376494.2012.761302

Cited by 18 publications

(5 citation statements)

References 26 publications

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“…In the experimental loading, bearing failure occurred in the specimens. For this reason, a partial decrease in the load after the first maximum load followed by a constant trend occurred [32]. Force-displacement plots show sudden damage, rupture, or separation damage that occurs without or shortly after a significant descent [24].…”

Section: Comparison Of Experimental and Numerical Resultsmentioning

confidence: 99%

Comparison of Hashin and Puck criterions for failure behavior of pin loaded composite plates

Dogan,

Kaman,

Erdem

et al. 2024

Materialwissenschaft Werkst

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In this study, the failure behavior of carbon fiber‐reinforced pin‐jointed composite plates were analyzed for different criteria. For this purpose, composite plates with a single and double pin joints were prepared from four layers carbon fiber composites. The effect of pin number, pin position on plate damage load and type was investigated experimentally and numerically under the tensile test. Numerically, progressive damage analysis was performed using Hashin and Puck failure criteria, and the approach rates to the experimental results were determined. It was observed that the experimental results obtained for single pin joint composites and the numerical data obtained using the Puck damage criterion were at least 87 % compatible, and this rate was determined as 85 % for the Hashin failure criterion. For the double pin jointed composites, it was seen that the experimental results and the results of the Puck damage criterion were compatible with at least 90 %, and this rate was obtained as 84 % for the Hashin failure criterion. The dominant damage type seen in the specimen is matrix shear and fiber compression according to the Hashin damage criterion, inter fiber failure in transverse tension for Puck.

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Section: Comparison Of Experimental and Numerical Resultsmentioning

confidence: 99%

Comparison of Hashin and Puck criterions for failure behavior of pin loaded composite plates

Dogan,

Kaman,

Erdem

et al. 2024

Materialwissenschaft Werkst

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show abstract

“…The type of failure is changed with the increase of the M/D ratio as bearing for first pin. 24 First, failure starts from first pin (Figure 3). This situation appears as a sudden drop in linear zone of load-displacement graphs.…”

Section: Resultsmentioning

confidence: 99%

“…The dimensions of the specimens used in the tensile tests performed to determine the pin-joint behavior of glass fiber epoxy composite materials are shown in Figure 3. Detailed dimensions of pin-joint test apparatus in Figure 3 can be taken from Turan et al 23,24 The circular hole diameter (D) is 6 mm. The distance between the pin center and the plate free edge (E) and the distance between the two pins (M) values with their coding name are given in Table 2.…”

Section: Definition Of the Problem And Experimentsmentioning

confidence: 99%

Pin loading effect on 3D spacer fabric-laminated composites produced vacuum infusion

Erdem

Kaman

2021

Journal of Composite Materials

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In this study, pin-loading behavior of laminated composites reinforced with three-dimensional (3D) spacer fabric was investigated, experimentally. Failure loads and modes of 3D-woven glass fiber epoxy composites, which are mostly preferred in automotive, machinery, and building production, are determined and compared with the mechanical properties of two-dimensional (2D)-woven fabric-reinforced composite materials. For this purpose, 2D plane and 3D spacer fabric composite plates were produced using the vacuum infusion method. The effect of pin geometry on joint strength and failure mechanism of composite was determined by tensile tests using test apparatus of single and two serial pin joint. In addition, low velocity impact tests of 2D and 3D plates were performed to explain the failure behavior. For mono-layer 3D-woven fabrics, the existence of out-of-plane fiber increases failure strength up to 50% compared to 2D fabrics. On the other hand, the use of multi-layer 3D fabric does not affect changes-specific failure load according to 2D fabrics significantly. Increasing in the specific load is only 9% for two-layers 3D. This situation has also been observed in impact tests.

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“…It was also shown that conventional point stress criterion cannot be adopted under certain circumstances. Turan et al [ 14 ] investigated the failure loads of composite laminates including two serial pin‐loaded holes in unidirectional carbon fiber reinforced composite laminates for different stacking sequences. The bearing failure was happened while the distance between the holes was 2.5 times higher than the diameter of the holes, whiles for lower ratios the shear‐out failure occurred.…”

Section: Introductionmentioning

confidence: 99%

Strength prediction and experimental damage investigations of plain woven CFRPs with interacting holes using multi‐instrument measurements

et al. 2023

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Composite structures with holes have been utilized in different applications, for example, swash plates, adaptor plates, and repair patches. These notches reduce the structural performance of the composite plates. In a woven composite plate with two interacting holes, the orientation of the holes affects the stress concentration factor (SCF) and strength of the laminate. The SCF determined by finite‐element method (FEM) shows that the structural performance of the sample with a single hole is improved through drilling one more hole along the loading direction. The main purpose of this article is to investigate, numerically and experimentally, the interaction between two holes, oriented at different angles, when the plate is subjected to tension. The location of the critical region depends on the configuration of the holes. The critical region and characteristic distances are established for each sample combining the FEM and digital image correlation (DIC) techniques. Point stress criterion (PSC) and extended‐PSC (EPSC) methods are utilized to predict the final failure strength of specimens. The failure progression under the influence of interaction between the two holes is investigated by infrared thermography (IRT). Moreover, to complement the IRT and mechanical results, fractographic analysis is conducted and it is concluded that a delamination dominated fracture along loading direction takes place in samples with two holes while a transversal matrix dominated failure is observed for the single notch specimen.

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Progressive Failure Analysis of Laminated Composite Plates With Two Serial Pinned Joints

Cited by 18 publications

References 26 publications

Comparison of Hashin and Puck criterions for failure behavior of pin loaded composite plates

Comparison of Hashin and Puck criterions for failure behavior of pin loaded composite plates

Pin loading effect on 3D spacer fabric-laminated composites produced vacuum infusion

Strength prediction and experimental damage investigations of plain woven CFRPs with interacting holes using multi‐instrument measurements

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