Interfacial fracture toughness
Computational evaluation of interfacial fracture toughness of thin coatings
... brittle fracture, with crack morphology predominantly controlled by the kinetic energy of impacting particles ...resulting fracture is in the form of axially symmetric cone cracks starting at the periphery ...
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Influence of isothermal aging conditions on APS TBC's interfacial fracture toughness
... Conclusion Interfacial indentation has been employed to address interfacial ad- hesion and derive interfacial toughness in TBC (thermal barrier coat- ings) systems produced by Atmospheric ...
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The role of the residual stresses of the epoxy-aluminum interphase on the interfacial fracture toughness
... Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possib[r] ...
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Interfacial toughness of the nickel-nickel oxide system
... the fracture toughness of the oxide as well as the frac- ture toughness of the interface versus the oxide thick- ness is plotted in ...the fracture toughness of the oxide varies very ...
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Measure of fracture toughness of compressive fiber failure in composite structures using infrared thermography
... ture toughness of this phenomenon and the compact compression (CC) test is currently ...the fracture toughness of this crack, it is necessary to separate these two phenomena - kink band and crush- ...
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Measure of fracture toughness of compressive fiber failure in composite structures using infrared thermography
... dissipative phenomenon from temperature measurement on the sample surface. They show that an estimation of the heat sources makes it possible to locate the damage in time and space and to evaluate the dissipated thermal ...
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Effect of unstable crack growth on mode II interlaminar fracture toughness of a thermoplastic PEEK composite
... (ENF 6 and ENF 8 ). Afterwards, stable propagation took place until the point of maximum force, when G IIC increased to a value between 1.4 N/mm (ENF 9 ) and 3 N/mm (ENF 8 ). The drawback of this method is that it is ...
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Experimental and Numerical Study of Interfacial Fracture Parameters of a Brazed Joints
... the interfacial cracking phenomena in adhesive joints and thus to optimize the design of high temperature packaging, cohesive zone models (CZM) (Crisfield & Alfano , 2001) (Davila & Camanho, 2002) (Li et ...
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Mode I and II interlaminar fracture toughness of nanoclay-reinforced epoxy/GF composites
... / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur. Access and use of [r] ...
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The effects of anisotropy and microcracks on the fracture toughness (KIC) of freshwater ice
... Les rhultats rgvglent que le facteur K1 diminue avec l'accroissement du tau* de chargement et de la simension des grains et que, dans des conditions semblables, Klc est plus Qle[r] ...
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Effect of differential thermal contraction on fracture toughness of asphalt materials at low temperatures
... Calculated values of the flexural strength based on the results of the three-point bending tests were plotted in Figures 6, 7 and 8 for asphalt cement (AC), bitumen-filler (BF) and aspha[r] ...
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Dynamic effects on fracture toughness for ferritic steel in the ductile-to-brittle transition
... at low temperature. A thermal chamber has been built to allow recording of the test with a high speed video camera. The six specimens, tested at an impact velocity of about 5 m/s have all demonstrated brittle ...
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Apparent Interfacial Toughness of Undoped and Photoluminescent Eu3+-Doped Yttria-Stabilized Zirconia Thermal Barrier Coatings
... Results from Table 5 shows that the interfacial toughness decreases as TGO thickness increases. The TGO thick- nesses are measured from SEM images showing the interfacial morphologies as illustrated ...
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Effect of unstable crack growth on mode II interlaminar fracture toughness of a thermoplastic PEEK composite
... energy is related to the rate dependent characteristics of the PEEK matrix. At the same time, the results showed that the damage zone length increases from about 1 to 1.3 mm as the loading rate increases from 1.7 × 10 ...
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Influence of heat treatment on the fracture toughness and crack propagation in 5% Cr martensitic steel
... facture toughness for hardness 42, 47 and 50 ...the fracture toughness (left scale) and fatigue crack propagation (right ...The toughness and the slope m of the Paris plot related to the ...
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Influence of fibre volume fraction on mode II interlaminar fracture toughness of glass/epoxy using the 4ENF specimen
... 15024) it has proved more difficult to reach agreement for mode II (shear). An obstacle to the most widely-used test, the end notch flexure (ENF) specimen, is that crack propagation is inherently unstable [1–3] . An ...
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Damage analysis and fracture toughness evaluation in a thin woven composite laminate under static tension using infrared thermography
... mated crack length is in the same range as the experimental crack length observed on SEM micrographs ( Fig. 4 ). The mean value of G computed for three different heat sources is shown in Fig. 8 (Num. Model.). The results ...
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Influence of the stacking sequence and crack velocity on fracture toughness of woven composite laminates in mode I
... 4. Discussion 4.1. Damage mechanisms The study of all the interfaces brought to light several damage mechanisms leading to delamination in woven laminates. For each configuration a resin rich side and a clean fiber side ...
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Strain rate effect of mode II interlaminar fracture toughness on the impact response of a thermoplastic PEEK composite
... Regarding the specific case of PEEK based composites, Hamdan et al. suggested that high rate testing induced a change in crystalline mor- phology and, more specifically, an increase of the crystallinity degree [30] which ...
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Supplementary Material for "Role of the crystal lattice structure in the selection of fracture toughness"
... III. SCALAR ANTIPLANE ELASTICITY PROBLEM DETERMINATION OF CRACK-TIP MIS-POSITIONING WITH AN ARBITRARY NUMBER OF NODES FIG. S2. Determination of fracture toughness with an arbitrary number of nodes. (a) ...
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