Contact problem for elastic layer and rigid cylinder with friction forces

Usov, P. P.; Данилов, В. Д.

doi:10.3103/s1068366607030014

Cited by 6 publications

(3 citation statements)

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“…Thermogravimetric analysis was performed using TA Instruments, the Q600 machine with the following parameters: sample dimensions 2 × 2 × 2 mm 3 , the temperature range was 30–500 °C, the heating rate was 10 °C/min, under the air atmosphere. Tribological tests were performed on a block‐on‐ring apparatus in a dry friction mode that simulates the behavior of sealing and bearing units of the heavy machinery class . Tribological test parameters were as follows: the load was 19 N, the velocity was 2.6 m/s, the duration was 30 min, the temperature was 23 °C, the counter body was a steel ring of 98 mm × 5 mm, the hardness was 55 HRC; R a was 0.2 μm.…”

Section: Methodsmentioning

confidence: 99%

“…Tribological tests were performed on a block-on-ring apparatus in a dry friction mode that simulates the behavior of sealing and bearing units of the heavy machinery class. 31 Tribological test parameters were as follows: the load was 19 N, the velocity was 2.6 m/s, the duration was 30 min, the temperature was 23 C, the counter body was a steel ring of 98 mm × 5 mm, the hardness was 55 HRC; R a was 0.2 μm.…”

Section: Methodsmentioning

confidence: 99%

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Recycled moulded polyimide materials obtained by high‐energy ball milling

Olifirov

Kaloshkin

Zadorozhnyy

et al. 2018

J of Applied Polymer Sci

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This article presents a method of manufacturing moulding polyimide (PI) from recycling pyromellitic dianhydride‐4,4′oxydianiline PI films. Recycled PI powders were obtained by grinding PI films in high‐energy ball mill. In order to improve the sintering behavior of the recycled PI, a commercial PI powder (trade mark PM‐69) and a liquid PI resin (trade mark SP‐97) were chosen as modifying additions. PI/PM‐69 and PI/SP‐97 compositions were obtained by high‐energy ball mill. Bulk samples were obtained by compression moulding at 400 °C. The mechanical properties of the moulded PI and the reinforcing action of the PM‐69 and SP‐97 are strongly dependent on the mean size of the recycled PI powders. The flexural strength of 87 MPa and the deformation at failure −4.2% were achieved for the moulded PI/SP‐97 (10 wt %) samples. The resulting materials showed linear behavior of elastic modulus in a temperature range of 50–350 °C. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46733.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Recycled moulded polyimide materials obtained by high‐energy ball milling

Olifirov

Kaloshkin

Zadorozhnyy

et al. 2018

J of Applied Polymer Sci

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“…Rolling of a coated material was investigated by Usov and Danilov (2007) by deriving the exact solution in case of an elastic coating and a rigid substrate material. A functionally graded elastic coating was recently studied by Guler and coworkers (Alinia et al, 2014;Guler et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Preventing interface damage by pre-conditioning polymer-coated steels via rolling

Beeck

Breemen

Schreurs

et al. 2015

International Journal of Solids and Structures

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a b s t r a c tA novel methodology is presented for pre-conditioning a polymer-coated steel used in food and beverage packaging. Mechanical rejuvenation of the coating via rolling is studied in order to prevent interface damage in subsequent forming operations. The simulations reveal that the thermodynamic state of the polymer coating after rolling depends on the rolling reduction. This dependency can be used to tailor the thermodynamic state of the coating prior to can production. A proof-of-principle simulation was performed to study the effects of rejuvenation on subsequent deformation processes. Deformation-induced interface roughening was studied for the initial and rejuvenated polymer coating. The predictions for a rejuvenated polymer coating indicate a significant decrease in interface damage.The presented numerical framework allows for a detailed study of the effects of pre-conditioning on the interface integrity during subsequent forming operations. With properly identified material parameters, it becomes possible to tailor the polymer-steel material properties before and during production to minimize interface damage during production and storage of cans or canisters, e.g. for food and beverage packaging.

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