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Journal articles on the topic 'Uniaxial load'

Author: Grafiati

Published: 22 April 2022

Last updated: 30 July 2025

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1

Tsouvalis, Nicholas G., and Vassilios J. Papazoglou. "Design Buckling Curves for Clamped Orthotropic Laminated Plates." Advanced Composites Letters 13, no. 5 (2004): 096369350401300. http://dx.doi.org/10.1177/096369350401300502.

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Non-dimensional design buckling curves for clamped rectangular orthotropic plates are presented in this study. These curves provide the critical buckling load of thin, symmetric, cross-ply laminated plates as a function of the laminate's rigidities and aspect ratio for the following seven configurations of the applied in-plane loads: uniform uniaxial compression, triangular uniaxial compression, uniaxial in-plane bending, pure shear, uniform uniaxial compression combined with shear, triangular uniaxial compression combined with shear, and uniaxial in-plane bending combined with shear. Approxim

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2

Gunasekaran, Vijay, Jeyaraj Pitchaimani, and Lenin Babu Mailan Chinnapandi. "Free vibration and inherent material damping characteristics of boron-FRP plate: influence of non-uniform uniaxial edge loads." International Journal for Simulation and Multidisciplinary Design Optimization 12 (2021): 18. http://dx.doi.org/10.1051/smdo/2021017.

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The current investigation presents the analytical investigation on free vibration and inherent material damping of boron-FRP plate, subjected to non-uniform uniaxial edge loads. Initially critical buckling load (Pcr) is obtained, then followed by free vibration response and inherent material damping values for corresponding modal indices of the FRP plate is calculated for different load fraction of non-uniform uniaxial edge loads. The buckling load and free vibration response are obtained by using strain energy method and Reddy's TSDT respectively. It is observed that the nature of load and as

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3

Tin, Huynh-Xuan, Ngo-Thanh Thuy, and Soo-Yeon Seo. "Structural Behavior of RC Column Confined by FRP Sheet under Uniaxial and Biaxial Load." Polymers 14, no. 1 (2021): 75. http://dx.doi.org/10.3390/polym14010075.

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Various researches have been performed to find an effective confining method using FRP sheet in order to improve the structural capacity of reinforced concrete column. However, most of these researches were undertaken for the columns subjected to concentric compressive load or fully confined RC columns. To date, it remains hard to find studies on partially FRP-confined RC columns under eccentric load. In this manner, an experimental investigation was carried out to assess the performance of rectangular RC column with different patterns of CFRP-wrap subject to eccentric loads in this paper. The

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4

Bacha, Sher, Bingxiang Huang, and Haoze Li. "Long-term creep and microscopic deformation mechanisms of sandstone using rock rheology creep equipment and scanning through high-resolution 3D XRM." Journal of Geophysics and Engineering 19, no. 2 (2022): 227–44. http://dx.doi.org/10.1093/jge/gxac004.

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Abstract Since rock is heterogeneous, hence its behavior is always variable. The governing parameters in rock deformations are time, applied load, composition, water content, temperature and loading conditions including confinement and loading rate. Time-dependent deformation study is extremely important for the prevention of hazards such as rockburst, roof fall and collapse. In the current study, sandstone samples from Kouzidong Mine China are analyzed using long-term rheological creep tests and advanced microscopic scanning using 3D X-ray microscopy (XRM). Time is the main governing factor i

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Kim, Chan-Jung. "Uniaxial Load Specification for Vehicle Knuckle Part Using Maximum Stress Similarity in Triaxial Load Case." Machines 10, no. 11 (2022): 1097. http://dx.doi.org/10.3390/machines10111097.

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Knuckle parts have a complex relationship with adjacent vehicle parts, making it difficult to determine the proper fatigue evaluation specification when considering vehicle operation. An accelerated triaxial load case for the knuckle part was derived using a combination of four event modules from the test code developed by the Korea Automotive Technology Institute. The fatigue damage analysis of the front and rear knuckle models was conducted with respect to the accelerated triaxial load case, and the maximum stress was measured at hotspots for the magnitude and orientation of the critical pla

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6

Scherer, George W. "Viscous Sintering under a Uniaxial Load." Journal of the American Ceramic Society 69, no. 9 (1986): C—206—C—207. http://dx.doi.org/10.1111/j.1151-2916.1986.tb07479.x.

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7

Bensberg, A. "Polyacid gels under a uniaxial load." Continuum Mechanics and Thermodynamics 15, no. 4 (2003): 409–23. http://dx.doi.org/10.1007/s00161-003-0126-4.

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8

Lei, Jin Sheng, You Wei Zeng, Gang Peng, and Qian Feng Wang. "Dynamic Properties of Steel Fiber Concrete under the Action of Noncyclic Variable Amplitude Load." Applied Mechanics and Materials 482 (December 2013): 20–25. http://dx.doi.org/10.4028/www.scientific.net/amm.482.20.

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Uniaxial dynamic compression tests were carried out on the triaxial testing machine to investigate the effect of noncyclic variable amplitude load. The characteristic of steel fiber concrete and differences among static uniaxial loading testing and dynamic uniaxial testing were studied systematically. It is shown that both the strain and the stress are directly proportional to the cycle frequency. Meanwhile, as the cycle amplitude increases, the irreversible plastic deformation increases gradually. And increasing the strain ranges, the stress strain curve becomes sparser. The comparison tests

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9

Lee, Yeong Huei, Siew Liang Chai, Mohd Hidayat Abdul Rani, and Johnny Ong King Ngu. "STRUCTURAL PERFORMANCE OF STORMWATER MODULE UNDER UNIAXIAL LOAD." Journal of Civil Engineering, Science and Technology 13, no. 2 (2022): 136–49. http://dx.doi.org/10.33736/jcest.4483.2022.

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Geocellular plastic units or stormwater modules are popular to replace conventional drainage systems due to land limitations of urbanization. Most research focuses on stormwater management rather than its mechanical properties. Several cases were discovered where the failure was not due to material or manufacturing quality. As there is a lack on information of structural behaviour, this paper presents an experimental study of performance for stormwater modules under uniaxial load. There are four specimens for vertical load test and one for lateral load test. The vertical and lateral loads are

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10

Miah, Md Jihad, Francesco Lo Monte, Roberto Felicetti, Hélène Carré, Pierre Pimienta, and Christian La Borderie. "Fire Spalling Behaviour of Concrete: Role of Mechanical Loading (Uniaxial and Biaxial) and Cement Type." Key Engineering Materials 711 (September 2016): 549–55. http://dx.doi.org/10.4028/www.scientific.net/kem.711.549.

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Fire poses one of the most severe environmental conditions that can act on concrete structures as an external load and can induce severe damages (cracks, spalling) or even lead to collapse. Fire spalling of concrete is a complex phenomenon, which might occur due to pressure build-up in the pores, thermal and load-induced stresses. In this context, ordinary concrete specimens (B40-II and B40-III: fc28days ≈ 40 MPa) were exposed to standard fire curve (ISO 834-1), while a constant uniaxial or biaxial compressive load was applied. Six different levels of uniaxial compressive stress on cubes and f

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11

Zhang, Jing-shuang, Xue-lei Duan, and Zi-yan Yang. "SHPB Test and Microstructure Analysis on Ready-Mixed Concrete in Uniaxial Load and Passive Confining Pressure States." Shock and Vibration 2019 (September 23, 2019): 1–16. http://dx.doi.org/10.1155/2019/2592459.

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Ready-mixed concrete has been used as a support in mine roadways, where the impact load of blasting excavation can cause damage to the concrete support of the roadway. However, limited studies are available on the effect of water content, storage period, and impact pressure on dynamic mechanical properties of ready-mixed concrete in uniaxial load and passive confining pressure states. To investigate the effect of water contents (0%, 1.0%, 1.5%, and 2.0% by mass of dry sand), storage periods (0 d, 3 d, 7 d, 15 d, 20 d, and 30 d), and impact pressures (0.6 MPa and 0.9 MPa) on dynamic mechanical

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12

Wang, Rui Hong, Yu Zhou Jiang, Jin Long Guo, and Tian Cai Tang. "Study on the Relation between Uniaxial Compressive Strength and Point Load Strength." Applied Mechanics and Materials 501-504 (January 2014): 282–85. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.282.

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In order to investigate the relation between uniaxial compressive strength and point load strength, several homogeneous rock specimens were tested, and the influence of the different rock type was investigated using regression analysis and the derived equations were statistically tested. The test result show that there are some correlations and trends between uniaxial compressive strength and point load strength, the shape size and lithology of rock specimens have important influence on the result of point load test, and the greain size, the mineral compositon and the structral compact are key

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13

Asthana, A., H. A. Ardakani, Y. K. Yap, and R. S. Yassar. "Real time observation of mechanically triggered piezoelectric current in individual ZnO nanobelts." J. Mater. Chem. C 2, no. 20 (2014): 3995–4004. http://dx.doi.org/10.1039/c4tc00032c.

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We report here, the mechanically triggered electrical current in the uniaxially compressed individual ZnO nanobelts under no applied bias, measuredin situin a transmission electron microscope. In contrast to the bending, the magnitude of the electrical current increased with the increase of uniaxial compression, which indicates load-mode dependency of the detected current.

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14

Singace, A. A., and H. El-Sobky. "Uniaxial crushing of constrained tubes." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 215, no. 3 (2001): 353–64. http://dx.doi.org/10.1243/0954406011520760.

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By changing the end constraints, the behaviour of mild steel and aluminium alloy tubes of relatively low D/ t ratio, subjected to an axial crushing load, is studied. Many combinations of end constraints were produced by radially constraining one or both ends of the loaded tube outwards, inwards or in both directions. Partially constrained mild steel and aluminium tubes are found to collapse into either a pure concertina mode or a pure diamond mode, depending on the ratio D/ t and the material characteristics. Mixed concertina-diamond modes would generally result by radially constraining the tu

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15

Saucedo-Muñoz, Maribel L., Shin-Ichi Komazaki, Toru Takahashi, Toshiyuki Hashida, and Tetsuo Shoji. "Creep property measurement of service-exposed SUS 316 austenitic stainless steel by the small-punch creep-testing technique." Journal of Materials Research 17, no. 8 (2002): 1945–53. http://dx.doi.org/10.1557/jmr.2002.0288.

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The creep properties for SUS 316 HTB austenitic stainless steel were evaluated by using the small-punch creep test at 650 °C for loads of 234, 286, 338, 408, and 478 N and at 700 °C for loads of 199 and 234 N. The creep curves, determined by means of the small-punch creep test, were similar to those obtained from a conventional uniaxial creep test. That is, they exhibited clearly the three creep stages. The width of secondary creep stage and rupture time tr decreased with the increase in testing load level. The creep rupture strength for the service-exposed material was lower than that of the

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16

Androulidakis, Ch, E. N. Koukaras, M. G. Pastore Carbone, M. Hadjinicolaou, and C. Galiotis. "Wrinkling formation in simply-supported graphenes under tension and compression loadings." Nanoscale 9, no. 46 (2017): 18180–88. http://dx.doi.org/10.1039/c7nr06463b.

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17

Chen, Yanlong, Haoshuai Wu, Hai Pu, et al. "Investigations of Damage Characteristics in Rock Material Subjected to the Joint Effect of Cyclic Loading and Impact." Energies 13, no. 9 (2020): 2154. http://dx.doi.org/10.3390/en13092154.

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Investigation of the damage characteristics of rock material under the combined effect of cyclic load and impact load is extremely crucial for many mining engineering applications. Based on energy dissipation theory, we considered factors such as circulation times, the cyclic stress of a uniaxial cyclic load test, and the impact pressure (strain rate) of a split Hopkinson pressure bar (SHPB) test, studying the damage mechanism of red sandstone under the combined action of a uniaxial cyclic and impact loads. We found that when the load stress is 60%, 70%, and 80% of the uniaxial compressive str

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18

Zhang, Yongjie, Tongxin Zhang, Jingpiao Zhou, Bo Cui, and Fangyu Chen. "The Design and Analysis of Reinforcement Schemes for Pultruded Rod Stitched Efficient Unitized Structure Open-Panel Structures." Aerospace 11, no. 9 (2024): 726. http://dx.doi.org/10.3390/aerospace11090726.

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This paper presents the design and analysis of PRSEUS structures with no openings, small openings, and mid-sized openings. For the typical panel structure of the small-opening PRSEUS (Pultruded Rod Stitched Efficient Unitized Structure), five reinforcement schemes are developed using different types, such as mouth frames and convex platforms. Simulation analyses of tensile and compressive load are conducted. Compared to the non-opening PRSEUS panel, the small-opening PRSEUS panel’s maximum von Mises stress increases by 4.57 times under uniaxial tensile load, and the maximum von Mises stress in

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19

Contreras, Solange, Manuel Saldaña, Norman Toro, Ignacio Pérez-Rey, Manuel A. González, and Javier González. "Scale Effect and Correlation between Uniaxial Compressive Strength and Point Load Index for Limestone and Travertine." Applied Sciences 11, no. 8 (2021): 3672. http://dx.doi.org/10.3390/app11083672.

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Determining the uniaxial compressive strength of intact rock is the primary objective of a geomechanical project, and a reliable estimate in the early phases saves time and costs for more sophisticated laboratory tests. The problem is knowing which of the correlations between the resistance to uniaxial compression and point load index are reliable, those that cover one or several types of rock (depending on the type of statistical adjustment). In this work, they were evaluated with respect to limestone and travertine from experimental results, and the statistical models of the scale effect of

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20

Kolesnikov, G. N., and D. P. Nazarev. "Monotonic and cyclic load of pine wood under uniaxial compression: experiments and modeling." E3S Web of Conferences 458 (2023): 07021. http://dx.doi.org/10.1051/e3sconf/202345807021.

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To analyze the behavior of wood under uniaxial monotonic deformation, we applied an analytical model to separately control of the pre-peak and post-peak branches of the load-displacement curve. Two criteria for the transition of wood into the plastic stage of deformation are considered. To analyze the behavior of wood under cyclic uniaxial deformation, we used the load-displacement curve obtained for monotonic deformation as an envelope. Equations for the plotted of load-displacement curves under cyclic loading with incomplete unloading are proposed. As an experimental and model illustration,

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21

Bozkurt, Çağatay, Hakan DİLMAÇ, and Abdullah Sofiyev. "Buckling problem of sandwich rectangular plates consisting of polymer-based nanocomposite layers under compressive load." UNEC Journal of Engineering and Applied Sciences 5, no. 1 (2025): 35–42. https://doi.org/10.61640/ujeas.2025.0504.

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In this work, buckling problem of polymer-based sandwich rectangular plates with uniform and heterogeneous (HT) reinforced layers subjected to uniaxial compressive load is investigated. First, mechanical properties of each layer of sandwich rectangular plates consisting of polymer nanocomposites are modeled according to the extended mixture rule. After the basic relations of sandwich plates consisting of polymer-based nanocomposite layers are constructed, governing equations are derived based on the assumptions of classical plate theory (CPT). The governing equations under simply supported bou

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22

Kozelskaya, S. O., V. V. Kotelnikov, D. A. Akimov, Yu G. Kutyurin, and O. N. Budadin. "Experimental Studies of the Possibility of Estimating the Operating Resource of Composite Structures under their Power Loading and Industrial Building Structures." Vestnik Tambovskogo gosudarstvennogo tehnicheskogo universiteta 27, no. 1 (2021): 132–48. http://dx.doi.org/10.17277/vestnik.2021.01.pp.132-148.

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The article presents the results of experimental studies of the possibility of assessing the resource of various structures made of polymer composite materials (PCM) when applying power loads (uniaxial power static and cyclic) to them based on the analysis of the results of their non-destructive testing and industrial building objects using artificial neural networks (ANNs). It is shown that the error in assessing the service life of structures from PCMs when they are loaded with a uniaxial power load and cyclic load using the proposed method does not exceed 15 %, and for industrial constructi

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23

Shimamoto, Akira, Hiroshi Ohkawara, Jeong Hwan Nam, and Jai Sug Hawong. "Calculation of Stress Intensity Factor under Mixed Mode Biaxial Tensile Load by Photoelastic Hybrid Method." Key Engineering Materials 452-453 (November 2010): 837–40. http://dx.doi.org/10.4028/www.scientific.net/kem.452-453.837.

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In this study, the photoelastic experiment hybrid method was introduced and applied to the fracture problems of the isotropic polycarbonate plate with a central crack under the uniaxial and equibiaxial tensile load. The influences of equibiaxial tensile load on the isochromatic fringes and stress fields, stress intensity factors near the mixed mode crack-tip were investigated. As the results, without relation to the inclined angle of crack, the asymmetric isochromatic fringes around the crack propagation line under uniaxial tensile load has become symmetric and the slope of isochromatic fringe

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24

Mohamed, Ramy Nasr Abdelmonem, Ahmed Mohamed El Sebai, and Ahmed Shaban Abdel-Hay Gabr. "Simple Design Methodology for R.C. Slabs by Hybrid Reinforcing of Steel Rebars and Uniaxial or Triaxial Geogrids." Inventions 6, no. 2 (2021): 32. http://dx.doi.org/10.3390/inventions6020032.

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This paper’s objective is to provide simple design relations for the reinforced concrete slabs by a hybrid reinforcing of uniaxial or triaxial geogrids in addition to steel rebars. We hope this can provide guidance for further researchers to estimate the flexural bending capacity of the concrete slabs, the necessary grade of uniaxial or triaxial geogrids, and the necessary count of uniaxial or triaxial geogrids’ layers by conducting first-principles analytical, quantitative analyses for a previously published concrete slabs’ experimental data of reinforced concrete slabs by hybrid reinforcing

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25

Ihara, Ikuo, Kohei Ohtsuki, and Iwao Matsuya. "Influence of Uniaxial Stress on the Stress-Strain Curve Measured by Nanoindentation." Applied Mechanics and Materials 597 (July 2014): 17–20. http://dx.doi.org/10.4028/www.scientific.net/amm.597.17.

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A nanoindentation technique with a spherical indenter of tip radius 10 μm is applied to the evaluation of stress-strain curve at a local area of a pure iron under the uniaxial compressive stress exerted through the iron, and the influence of the compressive stress on the estimated stress-strain curve has been examined. A continuous multiple loading method is employed to determine the stress-strain curve. In the method, a set of 21 times of loading/unloading sequences with increasing terminal load are made and load-displacement curves with the different terminal loads from 0.1 mN to 100 mN are

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26

Oleksik, Mihaela, and Valentin Oleksik. "Experimental Studies Regarding the Mechanical Behaviour of Silicon-Coated and Uncoated P.A. 6.6 Fabrics." Applied Mechanics and Materials 657 (October 2014): 377–81. http://dx.doi.org/10.4028/www.scientific.net/amm.657.377.

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These paper aims to present an experimental study for determining the mechanical properties of woven fabrics used for airbags manufacturing. In order to realise the study, there were chosen two types of fabric, one that is coated with silicon and one that is uncoated. The experimental tests that were carried out were uniaxial tension tests for samples extracted on the warp and on the weft direction, the Bias test, a test specific for shear loads and the dome test, a test specific for biaxial loads. For the uniaxial tension test the force-displacement curve was obtained and the maximum values o

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27

Jiang, Fu Xiang, Lei Xin, Tie Jun Zhao, and Xiao Mei Wan. "Inner Damage and Anti-Chloride Penetration of High-Performance Concrete under Axial Tensile Load." Advanced Materials Research 261-263 (May 2011): 1210–14. http://dx.doi.org/10.4028/www.scientific.net/amr.261-263.1210.

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The total porosity of high performance concrete specimens after different level uniaxial tensile loading were measured to reflect the damage degree of mechanical load to the microstructure of the concrete. Meanwhile, considering the environmental characteristics of the ocean tidal zone, chloride penetration tests of the concrete were carried out with salt solution capillary absorption method. Based on the profile of chloride measured from specimens, chloride diffusion coefficients of the concrete under uniaxial tensile load with different levels are determined further by Fick’s second law. Res

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28

Alhamati, Abdullah Ali Nasser, Abdul Halim Ghazali, and Jamalodin Norzaie. "Investigation on the behavior of rigid polyvinylchloride pipes subjected to uniaxial compression loads." ASEAN Journal on Science and Technology for Development 23, no. 3 (2017): 145. http://dx.doi.org/10.29037/ajstd.101.

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The objective of this research was to investigate the capability of rigid Polyvinylchloride (PVC-U) pipes to sustain axial loads. The behavior of PVC-U pipes specimens subjected to short-term uniaxial compression loads were experimentally investigated. Results of the load-displacement tests on pipes of different wall thickness, diameter, and specimen heights were recorded. The experimental test results show that the PVC-U pipes are capable of supporting loads greater than the required design load (3.4 kN). Increasing the pipe specimen height decreases the pipe strength for supporting the axial

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29

Marker, Edgar, Lorenz Maier, Maximilian Gruber, Wolfram Volk, and Christoph Hartmann. "New test rig for biaxial and plane strain states on uniaxial testing machines." IOP Conference Series: Materials Science and Engineering 1307, no. 1 (2024): 012042. http://dx.doi.org/10.1088/1757-899x/1307/1/012042.

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Abstract The increasing interest in hydrogen technology and storage systems has also significant influence on material characterization. Storage solutions such as cryo-compressed hydrogen (CcH2) or compressed gaseous hydrogen (CGH2) use high pressure to improve the energy density. The pressurized hydrogen is stored in a pressure vessel. This leads to various strain states in the vessel, which are difficult to reproduce with standard testing equipment, such as a uniaxial testing machine. This contribution presents a new test rig for uniaxial testing machines that is able to generate a biaxial l

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30

Roberts, J. C., and G. J. White. "Experimental Results for Bending and Buckling of Rectangular Orthotropic Fiber-Reinforced Plastic Plate Structures." Marine Technology and SNAME News 36, no. 01 (1999): 22–28. http://dx.doi.org/10.5957/mt1.1999.36.1.22.

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Solid unstiffened, sandwich, and hat-stiffened rectangular orthotropic fiber-reinforced plastic (FRP) plates were tested in uniaxial in-plane compression and out-of-plane uniform pressure. The two short edges of all plates were clamped, whereas the two long edges of the unstiffened and sandwich plates were simply supported and the same edges of the hat-stiffened plate were left free. Unstiffened plates reached global buckling at about 688 kN (155 klb); however, the plates did not collapse up to the machine load limit of 1334 kN (300 klb). Sandwich plates never reached the overall elastic buckl

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31

Slater, P. A., M. D. Pandey, and A. N. Sherbourne. "Finite element analysis of buckling of corroded ship plates." Canadian Journal of Civil Engineering 27, no. 3 (2000): 463–74. http://dx.doi.org/10.1139/l99-086.

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The paper is concerned with the assessment of ship plates in which corrosion has reduced their overall thickness making them vulnerable to buckling-related failures. The uniaxial buckling of simply supported square plates is studied for several corrosion patterns, which are allowed to progressively engulf the entire plate. The finite element method is employed for computing buckling loads of corroded plates with different boundary conditions. Numerical results are presented in the form of generic plots of buckling load versus volumetric metal loss for several corrosion patterns considered in t

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32

Liu, Zongkai, Chuan Peng, and Xiaoqiang Yang. "Research and analysis of the wheeled vehicle load spectrum editing method based on short-time Fourier transform." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, no. 14 (2019): 3671–83. http://dx.doi.org/10.1177/0954407019830205.

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The measured uniaxial-head load spectrum in the road simulation test has a large number of useless small loads. When applying the measured load spectrum directly, it will take a lot of time. This paper designs a comprehensive road spectrum measurement system to collect data and proposes a method for editing the uniaxial-head acceleration load spectrum using short-time Fourier transform to speed up the reliability test process and reduce time costs. In this method, the time domain and frequency domain information of the signal is obtained by short-time Fourier transform. The concept of accumula

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33

Slota, Ján, Miroslav Jurčišin, Miroslav Tomáš, and Emil Spišák. "Cyclic Test of DP600 Steel under Tension-Compression Load for Different Pre-Strain Levels." Key Engineering Materials 635 (December 2014): 71–74. http://dx.doi.org/10.4028/www.scientific.net/kem.635.71.

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Modeling sheet metal forming operations requires understanding of the plastic behavior of the sheet metal along the non-proportional strain paths. Measurement of hardening under reversed uniaxial loading is because of its simplicity very effective mechanical test to achieve several important features of material behavior. With the reversed uniaxial loading can be examined features as Bauschinger effect, work hardening stagnation, permanent softening etc., which are necessary to defined kinematic hardening in the numerical simulations. The biggest problem of uniaxial reversed loading is bucklin

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Liu, Zhixi, Guangming Zhao, Xiangrui Meng, Ruofei Zhang, Dong Chunliang, and Wensong Xu. "Energy Analysis Method for Uniaxial Compression Test of Sandstone under Static and Quasi-Dynamic Loading Rates." Advances in Materials Science and Engineering 2021 (June 14, 2021): 1–11. http://dx.doi.org/10.1155/2021/9933243.

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To investigate the energy evolution characteristics of sandstone under static-quasi-dynamic loading rates (1.0 × 10−3, 5.0 × 10−3, 1.0 × 10−2, 5.0 × 10−2, and 1.0 × 10−1 mm/s), the uniaxial compression tests, the uniaxial cyclic loading-unloading tests, and the uniaxial incrementally cyclic loading-unloading tests were conducted under five different loading rates. Through analysis of the elastic energy of the uniaxial cyclic loading-unloading test and the uniaxial incremental cyclic loading-unloading test, show that the impact of the loading rate and the cycle numbers on the elastic energy is

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35

Corigliano, Pasqualino, Giulia Palomba, Vincenzo Crupi, and Yordan Garbatov. "Stress–Strain Assessment of Honeycomb Sandwich Panel Subjected to Uniaxial Compressive Load." Journal of Marine Science and Engineering 11, no. 2 (2023): 365. http://dx.doi.org/10.3390/jmse11020365.

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The ship hull structure is composed of plates and stiffened panels. Estimating the maximum load-carrying capacity, or the ultimate strength, of these structural components is fundamental. One of the main challenges nowadays is the implementation of new materials and technologies to enhance the structural integrity, economy, safety and environmentally friendly design of the ship’s hull structure. A new design solution may be represented by aluminium alloy honeycomb sandwich structures, both as plane panels or stiffened ones, which are characterised by excellent impact-absorption capabilities an

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Bogusz, Anna, and Mirosława Bukowska. "Specific Energy of Hard Coal Under Load." Studia Geotechnica et Mechanica 37, no. 1 (2015): 9–16. http://dx.doi.org/10.1515/sgem-2015-0002.

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Abstract The article presents results of experimental tests of energy parameters of hard coals under loading, collected from research sites located within five main geologic structures of Upper Silesian Coal Basin (GZW) - Main Trough, Main Anticline, Bytom Trough, Rybnik Trough and Chwałowice Trough. Coals from12 mines were analysed, starting with seams of group 200, through groups 400, 500, 600 and, finally, seams of group 700. Coal of each of the groups of seams underwent uniaxial compression stress of the energy parameters, in a servo-controlled testing machine MTS-810NEW, for the full rang

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Panda, S. K., Rajesh Kumar, and L. S. Ramachandra. "Post-Buckled Vibration Characteristic of Composite Cylindrical Shell Panels Under Parabolic In-Plane Edge Compression." International Journal of Applied Mechanics 07, no. 03 (2015): 1550035. http://dx.doi.org/10.1142/s1758825115500350.

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In this paper, post-buckled vibration of cross-ply thick laminated cylindrical shell panels subjected to nonuniform (parabolic) uniaxial and biaxial compression is studied. The mathematical model is based on a higher order shallow shell theory incorporating von Kármán-type geometric nonlinearities and initial geometric imperfections. In the first step, the plate membrane problem is solved to evaluate the stress distribution within the plate in the pre-buckling range as the applied in-plane edge load is nonuniform. By using the above stress distributions, the governing shell panel post-buckling

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Song, Li, Lin Gu, and Sai Ping Wei. "Study of Damage and Acoustic Emission Properties of Rocks under Uniaxial Cyclic Load-Unload." Advanced Materials Research 887-888 (February 2014): 878–81. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.878.

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In order to study the damage and sptial spatial and temporal distribution of acoustic emission of rocks under uniaxial cyclic load-unload, test of rocks with various kinds of heterogeneity under uniaxial cyclic load-unload disturbance was conducted using numerical simulation software RFPA2D.Figure destruction and acoustic emission - load curve of rocks were obtained from the test.The results show that destroy of the rock was produced from tensile stress concentration area surrounding the hole. as the load increases,crack developmented to the edge of the rock.when homogeneity of rock was low, c

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Novikov, V. F., S. M. Kulak, K. R. Muratov, and V. V. Probotyuk. "Study of magnetoelastic demagnetization of locally magnetized steel." Industrial laboratory. Diagnostics of materials 89, no. 9 (2023): 41–47. http://dx.doi.org/10.26896/1028-6861-2023-89-9-41-47.

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To improve the accuracy of determining mechanical stresses in steel by the method of magnetoelastic demagnetization (magnetoelastic memory), the magnetoelastic sensitivity of the material to elastic stresses is additionally measured by applying or removing an additional load of a known value. We present the results of studying the magnetoelastic demagnetization of locally magnetized steel by varying stresses of the uniaxial tension or compression against a background of the base load. The magnetoelastic sensitivity of the steel in a loaded state to variable stresses has been assessed. It is sh

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Xingmei, Zhang, Li Yarui, and Yang Datian. "Repeated Uniaxial Compression Test of Permeable Friction Courses Mixtures under Seepage Field and Stress Field Coupling." Advances in Materials Science and Engineering 2022 (September 25, 2022): 1–12. http://dx.doi.org/10.1155/2022/2943138.

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In order to study the variations of the non-Darcy flow permeability coefficient and the porosity of permeable friction courses (PFCs), as well as the effects of the coupled seepage and stress fields on them, repeated uniaxial compression tests were carried out under the coupled action of water and a load. A set of water and load coupling tests were conducted, and a non-Darcy flow permeability coefficient tester was also made. After the PFC-13 specimen was carried out by the repeated uniaxial compression test under the water and load coupling, the total air void ratio and effective air void rat

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ARAUJO, A. V. P., F. A. N. SILVA, C. L. NOGUEIRA, and J. A. SILVA. "Evaluation of mechanical damage in concrete subjected to uniaxial compression and tensile by diametrical compression with longitudinal and transverse ultrasonic waves." Revista IBRACON de Estruturas e Materiais 11, no. 6 (2018): 1160–77. http://dx.doi.org/10.1590/s1983-41952018000600002.

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Abstract In the research program both longitudinal and transverse ultrasonic waves were applied to concrete specimens under uniaxial compression and tensile diametrical compression. A total of 45 concrete specimens with five (5) different mixes were loaded until failure. While load was being applied - in compression and split tension - ultrasonic pulses were recorded and velocities calculated for both shear and pressure waves. The results indicate that longitudinal or transverse ultrasonic waves can be applied in the evaluation of diffuse damage (microcracking in uniaxial compression) or conce

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Zhou, Ming, Lan Qiao, Qingwen Li, Shuang Yang, and Zhenping Huang. "Research on the Conversion Relationship between Dynamic Point Load Strength and Dynamic Compressive Strength Based on Energy System." Shock and Vibration 2022 (April 30, 2022): 1–10. http://dx.doi.org/10.1155/2022/6988292.

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Point load test is a simple and fast method to obtain the compressive strength of rock. According to the maximum load at failure and the distance between two cone ends, the compressive strength of specimens can be calculated by the empirical formula. Because the test process does not need to process the sample into laboratory size type, so it is widely used. At the same time, with the rapid development of rock dynamics, the dynamic strength index of rock becomes more and more important under dynamic load. But dynamic point load is seldom mentioned by scholars. In order to explore the correlati

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Wang, Pan Xiu, and Gui Yun Zhou. "An Improved Dynamic Constitutive Model of Dynamic Mechanical Property of Concrete." Advanced Materials Research 785-786 (September 2013): 1240–43. http://dx.doi.org/10.4028/www.scientific.net/amr.785-786.1240.

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An improved dynamic constitutive model is presented, aiming to describe the key mechanical properties and predict the bearing strength of concrete structure under static and dynamic load. This model is based on the concept of equivalent uniaxial strains and strain rate. In this paper, an equivalent uniaxial stressstrain curves are obtained by the WillamWarnke curve and take the same form as in Saenz models. Then, the bending strength of a concrete beam under different static and dynamic load was discussed.

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Wang, Kai, Feng Wan, Ling Luo, Pengyu Cao, Lei Han, and Peng Jin. "Buckling Enhancement Analysis of Auxetic Laminated Rectangular Plate under Uniaxial Compression." Applied Sciences 13, no. 10 (2023): 6244. http://dx.doi.org/10.3390/app13106244.

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The buckling enhancement of the negative Poisson’s ratio (NPR) effect on a laminated plate under uniaxial compression with an in-plane translational restraint is investigated in this paper. According to the buckling equation of an orthotropic plate under biaxial compression, the critical buckling load of an NPR-laminated composite under uniaxial compression can be increased due to the induced tension force on the unloaded direction. Instead of layer angles and stacking sequence, the NPR envelope and buckling load enhancement are studied using lamination parameters in this paper. The Poisson’s

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Xu, Ying, Qiangqiang Zheng, Xin Gao, Rongzhou Yang, Xian Ni, and Qianqian Wang. "Quantitative Damage and Fracture Mode of Sandstone under Uniaxial Load Based on Acoustic Emission." Advances in Civil Engineering 2020 (December 18, 2020): 1–9. http://dx.doi.org/10.1155/2020/6685795.

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The damage degree and fracture mechanism of the rock are important to the bearing performance of the rock mass and the stability of the overlying structure. Most of the existing damage models for characterizing rock damage exclude the range of postpeak stress or do not consider the compaction and closure stage of the fracture, and the description of the quantitative damage of sandstone is not accurate enough. In addition, the description of the rock fracture mechanism under load is not exact enough. Aiming at the problem of quantitative damage and fracture mechanism of the loaded rock, this pa

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Minnert, Christian, and Karsten Durst. "Nanoindentation creep testing: Advantages and limitations of the constant contact pressure method." Journal of Materials Research 37, no. 2 (2021): 567–79. http://dx.doi.org/10.1557/s43578-021-00445-6.

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AbstractDifferent loading protocols have been developed in the past to investigate the creep properties of materials using instrumented indentation testing technique. Recently, a new indentation creep method was presented, in which the contact pressure is kept constant during the creep test segment, similar to the constant stress applied in a uniaxial creep experiment. In this study, the results of constant contact pressure creep tests are compared to uniaxial and constant load hold indentation creep experiments on ultrafine grained Cu and CuAl5. The constant contact pressure method yields sim

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Fei, Botao, Gang Wang, Xinping Li, Xiqi Liu, and Leibo Song. "Fracture and Damage Characteristics of Granite under Uniaxial Disturbance Loads." Buildings 12, no. 7 (2022): 1008. http://dx.doi.org/10.3390/buildings12071008.

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To investigate the mechanical properties and damage characteristics of granite under frequent disturbance loads in the process of underground engineering construction, laboratory uniaxial compression tests were conducted on granite under combined dynamic and static loading conditions. The following conclusions were reached: (1) under a dynamic disturbance, the failure stress of granite grows gradually as the initial stress and disturbance load rise due to the coupling of damage and strain-rate effect; (2) the characteristic stresses of granite specimens grow with the increasing amplitude of di

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Gladskyi, Maksym, Kateryna Barandych, Volodymyr Frolov, and Serhii Yurenko. "INFLUENCE OF STRESS CONCENTRATION ON STEEL DEFORMATION 20 UNDER CYCLIC LOADS." Technical Sciences and Technologies, no. 1(27) (2022): 60–66. http://dx.doi.org/10.25140/2411-5363-2022-1(27)-60-66.

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The effect of stress concentration on fatigue behavior of steel 20 is studied. Experimental study is carried out on tubular smooth and notched specimens under uniaxial cyclic loading and alternating torsion. Load and strain controlled fatigue tests were carried out at room temperature using servohydraulic machine with independent control of push-pull and torsion loads with frequency of 0.5-3 Hz. One basic geometry for two different types of specimens shown in Figure 1 with 1.1 mm wall thickness, 22 mm inside diameter, and 40 mm gauge length was used in this work. One type was a tubular smooth

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Kolesnikov, Gennadiy. "Analysis of Concrete Failure on the Descending Branch of the Load-Displacement Curve." Crystals 10, no. 10 (2020): 921. http://dx.doi.org/10.3390/cryst10100921.

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In this paper, load-displacement and stress-strain diagrams are considered for the uniaxial compression of concrete and under three-point bending. It is known that the destruction of such materials occurs on the descending branch of the load-displacement diagram. The attention of the presented research is focused on the explanation of this phenomenon. Fracture mechanics approaches are used as a research tool. The method for determining effective stresses and modulus of elasticity of concrete based on the results of uniaxial compression tests has been substantiated. The ratios necessary for the

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Broker, Jeffrey P., and Robert J. Gregor. "A Dual Piezoelectric Element Force Pedal for Kinetic Analysis of Cycling." International Journal of Sport Biomechanics 6, no. 4 (1990): 394–403. http://dx.doi.org/10.1123/ijsb.6.4.394.

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In light of substantial interest in the measurement of rider-induced loads, a new bicycle pedal instrumentation system is presented. The system employs dual piezoelectric transducers and permits the measurement of three components of a uniaxial load, moments about the pedal’s vertical axis, and the point of application of the applied load. Force and moment patterns derived from pedal output agree with previously reported data. Unique to this design, however, is the determination of center of pressure—and these data indicate that the applied load location varies during the pedaling cycle, with

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