Estimation of Mixed-Mode I/II Fracture of U-Notched Polycarbonate Specimens Using the TCD and SED Methods

Albinmousa, Jafar; Al-Sadah, Jihad; Hawwa, Muhammad A.; Al‐Qahtani, Hussain

doi:10.1134/s1029959923010083

Cited by 3 publications

(2 citation statements)

References 62 publications

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“…In the framework of the formulation used in this study, it was assumed that the fracture process began when stresses and/or strains met a certain criterion (the onset of delamination) [ 59 ]. To describe the initiation and evolution of damage under the combination of normal and shear strains at the interface, it was recommended to call for effective displacement in Abaqus [ 60 , 61 ], which determined the peak values of the nominal deformation.…”

Section: Resultsmentioning

confidence: 99%

Structure and Deformation Behavior of Polyphenylene Sulfide-Based Laminates Reinforced with Carbon Fiber Tapes Activated by Cold Atmospheric Plasma

Kosmachev,

Panin,

Panov

et al. 2023

Polymers

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Low-temperature plasma treatment with atmospheric discharge with runaway electrons (DRE) was shown to be an efficient way to activate carbon fiber’s (CF) surface and subsequently increase its interlayer shear strength (ILSS) values. It was demonstrated that an acceptable ILSS level was achieved after a DRE plasma treatment duration of 15 min. The treatment of CFs resulted in their surface roughness being increased and their functional groups grafting. The XPS data showed a change in the chemical composition and the formation of reactive oxygen-containing groups. SEM examinations of the PPS/CF laminates clearly demonstrated a difference in adhesive interaction at the PPS/CF interface. After the DRE plasma treatment, CFs were better wetted with the polymer, and the samples cohesively fractured predominantly through the matrix, but not along the PPS/CF interface, as was observed for the sample reinforced with the untreated CFs. The computer simulation results showed that raising the adhesive strength enhanced the ILSS values, but reduced resistance to transverse cracking under the loading pin. In general, higher flexural strength of the PPS/CF laminates was achieved with a greater interlayer adhesion level, which was consistent with the obtained experimental data.

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Section: Resultsmentioning

confidence: 99%

Structure and Deformation Behavior of Polyphenylene Sulfide-Based Laminates Reinforced with Carbon Fiber Tapes Activated by Cold Atmospheric Plasma

Kosmachev,

Panin,

Panov

et al. 2023

Polymers

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“…In polymers, the deformation/fracture mechanisms are determined primarily by the mobility of macromolecules due to the action of external applied loads [ 14 , 15 ]. However, it decreases after loading PCMs with fillers, which increases the elastic modulus, hardness, and yield point but reduces the elongation at break [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Fatigue Life of Polyetherimide/Carbon Fiber Particulate Composites at Various Maximum Stresses and Filler Contents

Bogdanov,

Panin

2024

Polymers

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The objective of this research was to predict the fatigue behavior of polyetherimide-based composites loaded with short carbon fibers 200 μm long under cyclic loads. The weight fraction of the filler was 10, 20, and 30 wt.%, while the maximum stress in a cycle was 55, 65, and 75 MPa. A modified fatigue model based on the obtained experimental results and Basquin equation was developed. The novelty of the results is related to developing a model on the structure–property relationship, which accounts for both the maximum stress in a cycle and the carbon fiber content in the composites. In addition, an “algorithm” for designing such composites according to the fatigue life criterion was proposed. The approach to determine relationships between the composition, structure, and properties of PCMs described in this study can be applied to further expand the model and to improve its versatility in the use of other thermoplastic matrices and fillers. The results of this study can be applied for the design of composites for structural applications with designated fatigue properties.

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Application of Polyethylene Terephthalate as a Denture Base Material for Manufacturing Temporary Removable Complete Dentures

Chizhmakov,

Arutyunov,

Muslov

et al. 2024

Mech Compos Mater

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Estimation of Mixed-Mode I/II Fracture of U-Notched Polycarbonate Specimens Using the TCD and SED Methods

Cited by 3 publications

References 62 publications

Structure and Deformation Behavior of Polyphenylene Sulfide-Based Laminates Reinforced with Carbon Fiber Tapes Activated by Cold Atmospheric Plasma

Structure and Deformation Behavior of Polyphenylene Sulfide-Based Laminates Reinforced with Carbon Fiber Tapes Activated by Cold Atmospheric Plasma

Prediction of Fatigue Life of Polyetherimide/Carbon Fiber Particulate Composites at Various Maximum Stresses and Filler Contents

Application of Polyethylene Terephthalate as a Denture Base Material for Manufacturing Temporary Removable Complete Dentures

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