Influence of the Loading Mode on the Strength and Deformability of Reinforced Carbon Plastics

Merkulov, S. I.; Esipov, S. M.; Esipova, D. V.

doi:10.1007/978-3-030-81289-8_48

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…It turned out that the maximum tangential stresses during the failure of the specimens decrease in proportion to the logarithm of the loading time. Similar dependences were obtained in [23][24][25] for the strength parameters of carbon fiber plastics. The increase in strength indicators with an increase in the loading rate of the PCM is explained by the thermal fluctuation nature of the strength [26].…”

Section: Results Of Interlaminar Shear Testssupporting

confidence: 81%

Strength Characteristics of Carbon Fiber Reinforced Plastic in Shear and Cyclic Extension-Compression after 7 Years of Climate Exposure

Petrov

2024

Univers. J. Carbon Res.

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The results of studies of carbon fiber reinforced plastic (CFRP) for aviation purposes based on the Cycom 977-2 epoxy binder and Tenax® IMS carbon fibers after 7 years of exposure under a canopy and on an open atmospheric stand in the warm humid climate of Sochi are presented. The influence of climatic aging is determined by the change in strength parameters during interlaminar shear and cyclic tension – compression. After exposure under a canopy, the strength characteristics during interlaminar shear and cyclic tension–compression increase by 7–13 %. If the plate is under the direct influence of solar radiation, then the strength characteristics of the material are slightly reduced, but remain at the level of the original values. The kinetic concept of fracture was used to interpret the results. The thermal activation analysis showed that the characteristics of the inelasticity of the plate specimens, both in terms of the relaxation and hysteresis parts of energy absorption, correspond to their strength characteristics.

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Section: Results Of Interlaminar Shear Testssupporting

confidence: 81%

Strength Characteristics of Carbon Fiber Reinforced Plastic in Shear and Cyclic Extension-Compression after 7 Years of Climate Exposure

Petrov

2024

Univers. J. Carbon Res.

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“…Балконная плита является выступающей частью сооружения, поэтому ее неисправное (аварийное) техническое состояние может стать причиной повреждения расположенных ниже этажом конструкций. Именно поэтому следует периодически осматривать эту часть здания и проводить своевременные мероприятия по поддержанию ее в рабочем состоянии, что вполне закономерно приведет к существенному снижению затрат на ее восстановление и обеспечит долговечность конструкции в течение всего периода эксплуатации [10][11][12][13][14].…”

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Reasons of Damage to Residential Balcony Slabs

Seryh,

Chernyshova,

Degtyar

et al. 2024

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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The main cause of defects and damage to balcony plates can be considered the so-called temporary factor, which has a far from positive effect on the general state of the structure - the impact of atmospheric-sphere precipitation, strong temperature differences. In addition to the temporary factor, the destruction of the balcony slab can be influenced by mistakes made during installation, no drains and overstrain of the balcony slab due to excessive load on it, which causes the formation of cracks. The basis for the survey was the check of the technical condition of the balcony slabs of a three-story multi-storey brick residential building in order to determine the degree of wear, possible defects and assess the possibility of further operation of the slab. A structural solution analysis was carried out to assess the technical condition of the building structures. Loads acting on the structures, impacts and operating conditions, the quality of structures, materials and connections were established. This also took into account factors such as the geometric dimensions of structures and their sections; presence of cracks, splits and destruction; condition of protective coatings; broken adhesion of reinforcement to concrete; presence of reinforcement rupture; condition of anchoring of longitudinal and transverse reinforcement; degree of corrosion of concrete and reinforcement. As a result of visual and measuring control, defects and damages having the requirements of operation and leading to a malfunction of the structure were revealed. The results set forth in the article may be of interest to specialists of expert organizations who are engaged in the examination of residential apartment buildings in order to assess the actual state of bearing structures, in particular balcony slabs

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