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Journal articles on the topic 'Impact shear'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Muller, Caroline. "Impact of Convective Organization on the Response of Tropical Precipitation Extremes to Warming." Journal of Climate 26, no. 14 (2013): 5028–43. http://dx.doi.org/10.1175/jcli-d-12-00655.1.

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Abstract In this study the response of tropical precipitation extremes to warming in organized convection is examined using a cloud-resolving model. Vertical shear is imposed to organize the convection into squall lines. Earlier studies show that in disorganized convection, the fractional increase of precipitation extremes is similar to that of surface water vapor, which is substantially smaller than the increase in column water vapor. It has been suggested that organized convection could lead to stronger amplifications. Regardless of the strength of the shear, amplifications of precipitation

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2

Paramonova, E., O. J. Kalmykowa, H. C. van der Mei, H. J. Busscher, and P. K. Sharma. "Impact of Hydrodynamics on Oral Biofilm Strength." Journal of Dental Research 88, no. 10 (2009): 922–26. http://dx.doi.org/10.1177/0022034509344569.

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Mechanical removal of oral biofilms is ubiquitously accepted as the best way to prevent caries and periodontal diseases. Removal effectiveness strongly depends on biofilm strength. To investigate the influence of hydrodynamics on oral biofilm strength, we grew single- and multi-species biofilms of Streptococcus oralis J22, Actinomyces naeslundii TV14-J1, and full dental plaque at shear rates ranging from 0.1 to 50 1/sec and measured their compressive strength. Subsequently, biofilm architecture was evaluated by confocal laser scanning microscopy. Multi-species biofilms were stronger than singl

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Peterson, Viktor, Anders Ansell, and Mikael Hallgren. "On the Residual Static and Impact Capacity of Shear-Reinforced Concrete Beams Subjected to an Initial Impact." Applied Sciences 12, no. 22 (2022): 11377. http://dx.doi.org/10.3390/app122211377.

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Impact loads in previous research showed to induce brittle responses of statically flexure-critical reinforced concrete (RC) beams designed for ductility. The impact load may produce flexural shear damage modes similar to that observed during quasi-static loads and local shear damage under the impact zone. The occurrence of shear damage modes during impact tests has been investigated extensively, but their effect on the residual quasi-static and dynamic capacity is not fully understood. For this aim, an initial high-velocity impact test initiated severe shear damage to RC beams. The beams were

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4

Sjoerdsma, S. D., J. P. H. Boyens, and J. J. Mooij. "Shear deformation under impact conditions." Polymer Engineering and Science 25, no. 4 (1985): 250–55. http://dx.doi.org/10.1002/pen.760250408.

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5

Ding, Yu, Zhuoying Tan, Shuguang Li, Runke Huo, Ziliang Liu, and Yong Ma. "Research on Tunnel Surrounding Rock Failure and Energy Dissipation Based on Cyclic Impact and Shear Loading." Advances in Civil Engineering 2021 (June 22, 2021): 1–15. http://dx.doi.org/10.1155/2021/8838695.

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Aiming at the cyclic impact deformation and failure of tunnel surrounding rock under shear stress, a self-developed rotation-impact simulation test platform was used to determine the number of failures, stress-strain curves, and energy in the process of cyclic impact failure. The failure process of rock under different impact velocities and shear stresses has been systematically studied. Results show that, under the same impact speed, the shear stress will increase with the increase in the rotation speed, but an upper limit will exist. When the rotation speed reaches this upper limit, the shea

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6

Silva, Dr Mariana, Dr Renata Lima Alves, and Dr Carlos Eduardo Nogueira. "THE IMPACT OF CONTAMINANTS ON THE SHEAR STRENGTH PROPERTIES OF SANDY SOILS." International Journal of Research in Engineering 5, no. 5 (2025): 1–5. https://doi.org/10.55640/ijre-05-05-01.

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This study investigates the impact of various contaminants on the shear strength properties of sandy soils, a critical aspect for geotechnical engineering applications such as foundation design, slope stability, and retaining structures. Sandy soils are widely used in construction, and their mechanical behavior can be significantly altered by the presence of pollutants, including heavy metals, hydrocarbons, and organic compounds, which can infiltrate the soil through industrial spills, agricultural runoff, or waste disposal. The research explores how these contaminants modify the inter-particl

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Kishi, N., H. Mikami, K. G. Matsuoka, and T. Ando. "Impact behavior of shear-failure-type RC beams without shear rebar." International Journal of Impact Engineering 27, no. 9 (2002): 955–68. http://dx.doi.org/10.1016/s0734-743x(01)00149-x.

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8

Mills, N. J., and A. Gilchrist. "Shear and Compressive Impact of Polypropylene Bead Foam." Cellular Polymers 18, no. 3 (1999): 157–74. https://doi.org/10.1177/026248939901800301.

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Polypropylene bead foams were subjected to oblique impacts, in which the material is compressed and sheared. This strain combination can occur when a cycle helmet hits a road surface. The results were compared with simple shear tests at low strain rates, and to uniaxial compressive tests at impact strain rates. The observed shear hardening was greatest when there was no imposed density increase, and practically zero when the angle of impact is less than 15 degrees. The shear hardening appears to be a unique function of the principal tensile extension ratio and is a polymer contribution, wherea

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9

Hansapinyo, Chayanon, Suchart Limkatanyu, Hexin Zhang, and Thanongsak Imjai. "Residual Strength of Reinforced Concrete Beams under Sequential Small Impact Loads." Buildings 11, no. 11 (2021): 518. http://dx.doi.org/10.3390/buildings11110518.

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Sequential small impact loads may not collapse structures directly but could weaken the strength of structures. This study aimed to investigate the impact of these sequential small impact loads on the strength of the reinforced concrete beams. First, six sequential impact loads were applied to the test specimens. Then, the residual static capacity of the impacted specimens was determined by the ultimate static load test, compared with those of undamaged specimens. The experiment was composed of 12 specimens having identical dimensions. The variable parameters were the magnitude of the axial lo

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10

Chu, M. C., and R. J. Scavuzzo. "Adhesive shear strength of impact ice." AIAA Journal 29, no. 11 (1991): 1921–26. http://dx.doi.org/10.2514/3.10819.

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11

Shi, Chenglong, Jigang Zhang, Junbo Zhang, Feng Shao, Yicong Zhang, and Menglin Zhang. "Experimental Study and Numerical Analysis on Impact Resistance of Civil Air Defense Engineering Shear Wall." Advances in Civil Engineering 2021 (December 17, 2021): 1–20. http://dx.doi.org/10.1155/2021/7376909.

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In order to study the impact resistance of civil air defense engineering shear wall, the impact resistance of civil air defense engineering shear wall was studied by combining finite element numerical simulation with pendulum impact test. The effects of impact height, pendulum mass, and impact times on the impact resistance of civil air defense engineering shear walls were analyzed. It was shown that when the impact height increased from 0.4 m to 2.5 m, the failure mode of civil air defense engineering shear wall tended to be local impact failure, and the horizontal displacement in the middle

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12

Han, Ying, and Boualem Khouider. "Convectively Coupled Waves in a Sheared Environment." Journal of the Atmospheric Sciences 67, no. 9 (2010): 2913–42. http://dx.doi.org/10.1175/2010jas3335.1.

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Abstract A linear stability analysis, about a radiative–convective equilibrium in a sheared environment, on an equatorial beta plane, for a simple multicloud model for organized tropical convection is presented here. Both vertical/baroclinic and meridional/barotropic zonal wind shears are considered separately in a parameter regime for which the shear-free multicloud model exhibits synoptic-scale instability of Kelvin and n = 0 eastward inertio-gravity [eastward mixed Rossby–gravity (MRG)] waves only, with moderate growth rates. The maximum growth rates appear to increase significantly with th

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13

Deng, Yaohua, Brent M. Phares, Hongtao Dang, and Justin M. Dahlberg. "Impact of Concrete Deck Removal on Horizontal Shear Capacity of Shear Connections." Journal of Bridge Engineering 21, no. 3 (2016): 04015059. http://dx.doi.org/10.1061/(asce)be.1943-5592.0000832.

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14

Van Waerbeke, L., M. White, H. Hoekstra, and C. Heymans. "Redshift and shear calibration: Impact on cosmic shear studies and survey design." Astroparticle Physics 26, no. 2 (2006): 91–101. http://dx.doi.org/10.1016/j.astropartphys.2006.05.008.

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15

Cui, Xiaoyu, Hongjian Wang, Lin Ye, and Kunkun Fu. "Numerical simulation of shear jamming in a shear thickening fluid under impact." Rheologica Acta 62, no. 4 (2023): 225–38. http://dx.doi.org/10.1007/s00397-023-01391-2.

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16

Hopkins, Julia, Matthieu de Schipper, Meagan Wengrove, and Bruno Castelle. "Wave-Current Impact on Shear Stress Patterns around 3D Shallow Bedforms." Journal of Marine Science and Engineering 10, no. 9 (2022): 1178. http://dx.doi.org/10.3390/jmse10091178.

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Observations from wave basin experiments and wave-resolving numerical simulations demonstrate the effect of wave-current interaction on shear stress around a sandy mound. Observations from the wave basin show that the mound deformation rate and morphological patterns depend on the mixture of waves and currents in the incident flow conditions. A SWASH nonhydrostatic numerical model was used to expand the parameter space of wave-current conditions observed in the flume and characterize the response of the near-bed shear stress to the mound. The model was validated with observations from wave-alo

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17

Fortune-Bashee, Xena, Jiayi 嘉懿 Sun 孙, and Jonathan C. Tan. "The Impact of Shear on Disk Galaxy Star Formation Rates." Astrophysical Journal Letters 977, no. 1 (2024): L6. https://doi.org/10.3847/2041-8213/ad91a3.

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Abstract Determining the physical processes that control galactic-scale star formation rates is essential for an improved understanding of galaxy evolution. The role of orbital shear is currently unclear, with some models expecting reduced star formation rates and efficiencies with increasing shear, e.g., if shear stabilizes gas against gravitational collapse, while others predicting enhanced rates, e.g., if shear-driven collisions between giant molecular clouds trigger star formation. Expanding on the analysis of 16 galaxies by C. Suwannajak et al., we assess the shear dependence of star form

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18

Tang, Zhi Ping, and Ting Li. "Shear Wave Attenuation and its Micro-Mechanism of Polymers." Applied Mechanics and Materials 446-447 (November 2013): 249–53. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.249.

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The impact shear response of crystallized polypropylene under combined compression and shear loading was studied by using an inclined gas gun and electro-magnetic particle velocity gauges. The experimental results show that the transverse wave velocity increases nonlinearly with the impact velocity, indicating its shear behavior is strongly related to the hydrostatic pressure. Remarkable shear wave attenuation occurs near the impact surface when the impact velocity and inclination angle reach the critical value. The micro-observation of recovered samples with a polarized optical microscope rev

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19

Frutschy, K. J., and R. J. Clifton. "Plate-Impact Technique for Measuring Dynamic Friction at High Temperatures." Journal of Tribology 119, no. 3 (1997): 590–93. http://dx.doi.org/10.1115/1.2833541.

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A new pressure-shear plate impact experiment is described for measuring the friction between two sliding surfaces at high temperature. Additionally, the techniques developed for this experiment extend the capability of the general pressure-shear experiment so that the shear strength of materials can be measured at high temperatures.

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20

Alghoul, S., Carol Eastwick, and D. Hann. "DROPLET IMPACT ON SHEAR-DRIVEN LIQUID FILMS." Atomization and Sprays 21, no. 10 (2011): 833–46. http://dx.doi.org/10.1615/atomizspr.2012004124.

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21

Stepanov, G. V., and V. A. Fedorchuk. "Localized shear in metals under impact loading." Le Journal de Physique IV 10, PR9 (2000): Pr9–707—Pr9–712. http://dx.doi.org/10.1051/jp4:20009118.

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22

Hartley, D. M., and P. Y. Julien. "Boundary shear stress induced by raindrop impact." Journal of Hydraulic Research 30, no. 3 (1992): 341–59. http://dx.doi.org/10.1080/00221689209498923.

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23

Stepanov, G. V., and V. A. Fedorchuk. "Localized shear in metals under impact loading." Strength of Materials 32, no. 2 (2000): 125–35. http://dx.doi.org/10.1007/bf02511670.

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24

Byon (Goichi Ben), O.-Il, and Miho Hashimoto. "Impact Transverse Shear Properties in CFRP Laminates." Journal of Reinforced Plastics and Composites 18, no. 18 (1999): 1729–38. http://dx.doi.org/10.1177/073168449901801806.

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25

Naseer, Muhammad Mudassar, Shiqiang Li, Burhan Khalid, Muhammad Yousaf Iqbal, Rustam Tahami, and Abidin Shayan Ul. "Impact Resistance of Composite Fabric Based on Shear Thickening Gel." European Journal of Applied Science, Engineering and Technology 3, no. 2 (2025): 348–56. https://doi.org/10.59324/ejaset.2025.3(2).28.

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In order to understand the impact resistance of shear thickened gel (STG) and find a simple test method for impact resistance, the composite fabric of shear thickened gel and warp knitted spacer fabric was prepared by impregnation and filling, and its performance was evaluated by bursting strength test and drop hammer impact test. The outcomes showed that the bursting strength, bursting elongation and bursting work of the samples prepared by impregnation method increased with the increase of shear thickening gel ratio, and the samples prepared by ethanol and gel dilution with the mass of 1:9 h

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26

More, Mahesh Rameshrao, Ajinkyaraj Shivaji Bhumare, and Sadhu Bajirao Nagargoje. "The Impact of Different Shear Wall Structure Position on Symmetric and Unsymmetric Tall Buildings." International Journal for Research in Applied Science and Engineering Technology 11, no. 4 (2023): 1218–28. http://dx.doi.org/10.22214/ijraset.2023.50308.

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Abstract: The shear wall is a structural component used to withstand lateral stresses. These walls will absorb shear stresses and avoid construction site relocation and subsequently devastation. For instance, if the shear walls are not constructed, we cannot expect the structure to exhibit acceptable tensional behavior. The contribution of the remaining structural elements to the bending moment, shear force, torsion, and axial force, as well as the final design of all structural components, are also impacted by shear wall. Over the last two decades, there has been an almost exponential increas

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27

Zhang, Li Qun, Hong Huan Cui, and Hai Long Wang. "The Capacity Assessment about Existing Reinforced Concrete Bridge with Cracks." Advanced Materials Research 368-373 (October 2011): 2157–60. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.2157.

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Recently, bridge deterioration with time and ever increasing traffic loads raise concerns about safety and durability of aging bridges. Based on the studies about damage assessment on the level of materials and components，the author made a comparative analysis on the damage mechanism and applicable conditions，and put forward the amended formulas for calculating the flexural and shears capacity，This paper combined with results of previous studies, based on the structural damage assessment research, reinforced concrete beam structure correction formula is given in the event of cracks and shear c

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28

Swize, Tatum, Frederick Osei-Yeboah, Matthew L. Peterson, and Pierre Boulas. "Impact of Shear History on Powder Flow Characterization Using a Ring Shear Tester." Journal of Pharmaceutical Sciences 108, no. 1 (2019): 750–54. http://dx.doi.org/10.1016/j.xphs.2018.07.003.

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29

He, Qianyun, Saisai Cao, Yunpeng Wang, Shouhu Xuan, Pengfei Wang, and Xinglong Gong. "Impact resistance of shear thickening fluid/Kevlar composite treated with shear-stiffening gel." Composites Part A: Applied Science and Manufacturing 106 (March 2018): 82–90. http://dx.doi.org/10.1016/j.compositesa.2017.12.019.

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Zhang, Xihong, Hong Hao, and Chao Li. "The effect of concrete shear key on the performance of segmental columns subjected to impact loading." Advances in Structural Engineering 20, no. 3 (2016): 352–73. http://dx.doi.org/10.1177/1369433216650210.

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Conventional precast segmental columns with seismic resistance design consist of only flat concrete segments with prestress tendon. This is because friction between adjacent segments is sufficient to resist the lateral forces from earthquake-induced actions. However, the friction between segments is not necessarily sufficient to resist lateral impact loads such as vehicle impact the column might experience during its service life. This article investigates the effectiveness of using concrete shear key in segments of precast segmental column in resisting the lateral impact loading. The precast

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Kurkin, Anatoli, Vitali Lipik, Xin Zhang, and Alfred Tok. "In Situ Observation of Shear-Induced Jamming Front Propagation during Low-Velocity Impact in Polypropylene Glycol/Fumed Silica Shear Thickening Fluids." Polymers 14, no. 14 (2022): 2768. http://dx.doi.org/10.3390/polym14142768.

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Shear jamming, a relatively new type of phase transition from discontinuous shear thickening into a solid-like state driven by shear in dense suspensions, has been shown to originate from frictional interactions between particles. However, not all dense suspensions shear jam. Dense fumed silica colloidal systems have wide applications in the industry of smart materials from body armor to dynamic dampers due to extremely low bulk density and high colloid stability. In this paper, we provide new evidence of shear jamming in polypropylene glycol/fumed silica suspensions using optical in situ spee

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Pytlik, Andrzej. "Comparative Shear Tests of Bolt Rods Under Static and Dynamic Loading." Studia Geotechnica et Mechanica 42, no. 2 (2020): 151–67. http://dx.doi.org/10.2478/sgem-2019-0038.

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AbstractThis article presents the methodology and results of single shear tests of bolt rods under dynamic impact loading generated by means of a drop hammer. Comparative analysis was also performed for bolt rod load capacity, stress and shear work under static and dynamic (impact) loading. The developed method of single shear testing of bolt rods under impact loading makes it possible to obtain repeatable test results concerning maximum bolt rod shearing force, shear stress and shear work values.Comparative shear tests of four types of bolt rods under static and impact loading showed that the

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Vishwanatha, H. S., Sreekeshava K. S., M. Gopal, and S. O. Sunitha. "Impact of Column Shear Force on the Seismic Performance of Open Ground Storey Structures." International Journal of Structural Analysis and Advanced Construction Techniques 1, no. 1 (2025): 53–68. https://doi.org/10.46610/ijsaact.2025.v01i01.001.

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Open Ground Storey (OGS) structures are particularly vulnerable to seismic failures due to their inherent soft storey behaviour, which reduces lateral stiffness and significantly increases shear forces in the ground floor columns. This study aims to analyze the shear forces in columns of three-dimensional (3D) OGS Reinforced Concrete (RC) frames subjected to seismic loads, focusing on the effectiveness of two Lateral Load-Resisting Systems (LLRS): the use of stiff columns at the ground floor and the implementation of shear walls in various configurations. The seismic performance of these syste

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Sun, Kai, Xiao Dong Yu, Shu Hua Li, Cheng Wen Tan, and Fu Chi Wang. "Multiple Adiabatic Shear Bands in Ti–6Al–4V Targets under Ballistic Impact." Advanced Materials Research 581-582 (October 2012): 448–52. http://dx.doi.org/10.4028/www.scientific.net/amr.581-582.448.

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In order to research the formation and spread of adiabatic shear bands in Ti-6Al-4V targets, LS-DYNA code is used to simulate the ballistic impact process. The projectile used in the impact test is a flat-headed steel cylinder with diameter of 7.62mm and length of 39mm. The results of simulated and impact test are in good agreement. Multiple adiabatic shear bands form in Ti-6Al-4V targets under high-speed ballistic impact. Adiabatic shear bands were found to extend parallel with a certain distance. The formation and distribution of adiabatic shear bands was related to the breaking-off of proje

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A. Heravi, Ali, Oliver Mosig, Ahmed Tawfik, Manfred Curbach, and Viktor Mechtcherine. "An Experimental Investigation of the Behavior of Strain-Hardening Cement-Based Composites (SHCC) under Impact Compression and Shear Loading." Materials 13, no. 20 (2020): 4514. http://dx.doi.org/10.3390/ma13204514.

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The ductile behavior of strain-hardening cement-based composites (SHCC) under direct tensile load makes them promising solutions in applications where high energy dissipation is needed, such as in earthquakes, impacts by projectiles, or blasts. However, the superior tensile ductility of SHCC due to multiple cracking does not necessarily point to compressive and shear ductility. As an effort to characterize the behavior of SHCC under impact compressive and shear loading relevant to the aforementioned high-speed loading scenarios, the paper at hand studies the performance of a particular SHCC an

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Tawfik, Ahmed, Iurie Curosu, and Viktor Mechtcherine. "Mechanical characterization of strain-hardening cement based composites (SHCC) under impact shear load." EPJ Web of Conferences 250 (2021): 01021. http://dx.doi.org/10.1051/epjconf/202125001021.

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The paper presents a testing facility, which enables the characterization of the shear behavior of cementitious composites under quasi-static and impact shear load. The device was designed by means of an extensive numerical parameter study on device geometry, materials and wave propagation, as well as specimen configurations and boundary conditions. The new shear testing device was integrated into a gravity-driven Split-Hopkinson tension bar (SHTB) for shear impact experiments and in a hydraulic testing machine for quasi-static shear experiments on strainhardening cement-based composites (SHCC

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Harabinová, Slávka, and Eva Panulinová. "Impact of shear strength parameters on slope stability." MATEC Web of Conferences 310 (2020): 00040. http://dx.doi.org/10.1051/matecconf/202031000040.

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Analysis and assessment of the slopes stability are an important in geotechnical engineering for all the times. The paper deals with the assessment of slope stability in fine-grained soils. The influence of change in shear strength parameters on the factor of safety has been studied. The factor of safety can be correctly obtained only if the critical failure surface of the slope is accurately identified and shear strength parameters are correctly. To investigate effect of soil strength parameters on the factor of safety, different values of shear strength parameters: cohesion (c), internal fri

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Chen, An, Weifeng Zang, and Lei Li. "Shear Strength of Honeycomb Sandwich Panel with Impact Damage." Journal of Physics: Conference Series 2541, no. 1 (2023): 012021. http://dx.doi.org/10.1088/1742-6596/2541/1/012021.

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Abstract Impact damage may reduce the mechanical property of honeycomb sandwich composites. In this paper, the impact damage and post-impact shear behavior of honeycomb sandwich plates are studied experimentally. The same impact damage energy was applied to all six test specimens. The damage region and depth of the impact crater were measured by using equipment. Shear tests were conducted on intact and damaged specimens to compare their strain fields and failure modes. The results show that there were no buckling phenomenon in the skin occurred both in intact and damaged specimens during the w

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Yao, Shujian, Yanjing Wang, Chengming Sun, Xingmin Feng, and Nan Zhao. "Experimental and Numerical Studies on the Impact Energy Absorption of Cutting Shear Rings." Applied Sciences 13, no. 3 (2023): 1860. http://dx.doi.org/10.3390/app13031860.

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To improve the passive safety of the collision process, we designed a kind of energy absorption device based on cutting shear rings (CSR). It can be installed in a limited space, overcoming the characteristic of traditional energy absorption devices that cannot play their advantages in a narrow space, and it will not be accompanied by the splashing of chips in the process of energy absorption. The impact energy absorption characteristics of the shear rings outside the energy absorption rods are analyzed. The feasibility of the finite element method to study the device’s characteristics is demo

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Hasan-nezhad, Hossein, Mojtaba Yazdani, Mehdi Salami-Kalajahi, and Mohsen Jeddi. "Mechanical behavior of 3D GFRP composite with pure and treated shear thickening fluid matrix subject to quasi-static puncture and shear impact loading." Journal of Composite Materials 54, no. 26 (2020): 3933–48. http://dx.doi.org/10.1177/0021998320922288.

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In this study, a new low-velocity shear impact test was introduced to carefully investigate the resistance of 3D E-glass fiber reinforced polymer composites with shear thickening fluid matrix. The shear thickening fluids were prepared by dispersing silica nano-particles in polyethylene glycol. Pure shear thickening fluid was modified by treating the silica surface with (3-Aminopropyl) triethoxysilane. Despite the low-velocity shear impact test, various experimental tests such as yarn pull-out, quasi-static puncture, flexibility and thickness tests were carried out to study the mechanical behav

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Wang, Xiuli, Qinyuan Wu, Zhenguo Gao, and Lirong Sha. "Study on Impact Resistance of All-Lightweight Concrete Columns Based on Steel Fiber Reinforced and Various Axial Compression Ratio." Buildings 13, no. 8 (2023): 2076. http://dx.doi.org/10.3390/buildings13082076.

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Concrete columns in service are exposed to threats such as accidental impacts and explosions, which pose potential risks to the safety of buildings. Although fully lightweight concrete elements prepared from non-sintered fly ash ceramic pellets and pottery sand are widely used in engineering practice, the dynamic response of such elements under impact loading is not supported by adequate research data. Therefore, in this study, the dynamic response of all-lightweight concrete columns under impact loading with different axial compression ratios (0.1, 0.2, and 0.3) was investigated by means of d

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Saarenheimo, Arja, Kim Calonius, Markku Tuomala, and Ilkka Hakola. "Soft Missile Impact on Shear Reinforced Concrete Wall." Journal of Disaster Research 5, no. 4 (2010): 426–36. http://dx.doi.org/10.20965/jdr.2010.p0426.

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In developing numerical approaches for predicting the response of reinforced concrete structures impacted on by deformable projectiles, we predict structural behavior collapse and damage using simple analysis and extensive nonlinear finite element (FE)models. To verify their accuracy, we compared numerical results to experimental data and observations on impact-loaded concrete walls with bending and transverse shear reinforcement. Different models prove adequate for different cases and are sensitive to different variables, making it important to rely on more than a single model alone. For wall

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Nishimoto, T., and S. Murakami. "Relation Between Diffuse Axonal Injury and Internal Head Structures on Blunt Impact." Journal of Biomechanical Engineering 120, no. 1 (1998): 140–47. http://dx.doi.org/10.1115/1.2834294.

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Diffuse axonal injury (DAI) is a severe head injury, which exhibits symptoms of consciousness disturbance and is thought to occur through rotational angular acceleration. This paper analyzes the occurrence of DAI when direct impacts with translational accelerations are applied to two-dimensional head models. We constructed a human model reproducing the human head structure, as well as modified human models with some internal head structures removed. Blunt direct impacts were applied from a lateral direction to the bottom of the third ventricle, considered to be the center of impact, using an i

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Hoan, Pham Thai, and Ngo Tri Thuong. "Shear resistance of ultra-high-performance concrete reinforced with hybrid steel fiber subjected to impact loading." Journal of Science and Technology in Civil Engineering (STCE) - NUCE 13, no. 1 (2019): 12–20. http://dx.doi.org/10.31814/stce.nuce2019-13(1)-02.

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This study investigated the synergy in shear response of ultra-high-performance fiber-reinforced concrete (UHPFRCs) containing different contents of long and short smooth steel fiber reinforcements at high strain rates. Shear resistance of two ultra-high-performance mono-fiber-reinforced concrete (UHP-MFRCs): L15S00 (containing 1.5 vol.-% long and 0.0 vol.-% short fiber) or L00S15, and one ultra-high-performance hybrid-fiber-reinforced concrete (UHP-HFRCs): L10S05 (containing 1.0 vol.-% long and 0.5 vol.-% short fiber) at high strain rates of up to 272 s-1 was investigated using a new shear te

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Radko, Timour, James Ball, John Colosi, and Jason Flanagan. "Double-Diffusive Convection in a Stochastic Shear." Journal of Physical Oceanography 45, no. 12 (2015): 3155–67. http://dx.doi.org/10.1175/jpo-d-15-0051.1.

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AbstractAn attempt is made to quantify the impact of stochastic wave–induced shears on salt fingers associated with internal waves in the ocean. The wave environment is represented by the superposition of Fourier components conforming to the Garrett–Munk (GM) spectrum with random initial phase distribution. The resulting time series of vertical shear are incorporated into a finger-resolving numerical model, and the latter is used to evaluate the equilibrium diapycnal fluxes of heat and salt. The proposed procedure makes it possible to simulate salt fingers in shears that are representative of

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Colling, Cédric, Patrick Hennebelle, Sam Geen, Olivier Iffrig, and Frédéric Bournaud. "Impact of galactic shear and stellar feedback on star formation." Astronomy & Astrophysics 620 (November 23, 2018): A21. http://dx.doi.org/10.1051/0004-6361/201833161.

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Context. Feedback processes and the galactic shear regulate star formation. Aims. We investigate the effects of differential galactic rotation and stellar feedback on the interstellar medium (ISM) and on the star formation rate (SFR). Methods. A numerical shearing box is used to perform three-dimensional simulations of a 1 kpc stratified cubic box of turbulent and self-gravitating interstellar medium (in a rotating frame) with supernovae and H II feedback. We vary the value of the velocity gradient induced by the shear and the initial value of the galactic magnetic field. Finally, the differen

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Conway, H. "The Impact of surface perturbations on snow-slope stability." Annals of Glaciology 26 (1998): 307–12. http://dx.doi.org/10.3189/1998aog26-1-307-312.

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Measurements and observations by others indicate that a potential slab avalanche consists of a relatively cohesive slab of snow overlying a thin weak layer that coniains flaws where locally the shear stress from the overburden is not fully supported. Under favorable conditions, snow will shear strain-soften, which provides the basis for applying a slip-weakening model to examine the size of flaw needed to initiate sub-critical crack propagation along the weak layer. Using typical values for snow properties, the model predicts sub-critical crack growth can initiate from a relatively small flaw

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Conway, H. "The Impact of surface perturbations on snow-slope stability." Annals of Glaciology 26 (1998): 307–12. http://dx.doi.org/10.1017/s0260305500015019.

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Measurements and observations by others indicate that a potential slab avalanche consists of a relatively cohesive slab of snow overlying a thin weak layer that coniains flaws where locally the shear stress from the overburden is not fully supported. Under favorable conditions, snow will shear strain-soften, which provides the basis for applying a slip-weakening model to examine the size of flaw needed to initiate sub-critical crack propagation along the weak layer. Using typical values for snow properties, the model predicts sub-critical crack growth can initiate from a relatively small flaw

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Hidalgo-Tufiño, Lizbeth, Anais Adauto, and Carmen Velezmoro. "Speed shear rate impact on the properties of OSA-modified potato starch." Scientia Agropecuaria 14, no. 1 (2023): 117–25. http://dx.doi.org/10.17268/sci.agropecu.2023.011.

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The reaction between starch granules and octenyl succinic anhydride (OSA) is regularly retarded due to the low breakthrough of large oily OSA droplets into starch granules in an aqueous reaction system. Furthermore, high-speed shearing is widely used in the food industry, demanding high shear, cavitation, and collision force. In this sense, high-speed shearing could reduce the size of OSA droplets and promote a more homogeneous distribution of groups in the starch granule. The aim of this study was to evaluate the impact of OSA potato starch synthesis assisted by high-speed shear on structure

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Bhatti, Abdul Qadir, Norimitsu Kishi, Hiroshi Mikami, and Tomohiro Ando. "Elasto-plastic impact response analysis of shear-failure-type RC beams with shear rebars." Materials & Design 30, no. 3 (2009): 502–10. http://dx.doi.org/10.1016/j.matdes.2008.05.068.

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