Dynamic loading
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Failure mechanism and coupled static-dynamic loading theory in deep hard rock mining: A review Open
Rock failure phenomena, such as rockburst, slabbing (or spalling) and zonal disintegration, related to deep underground excavation of hard rocks are frequently reported and pose a great threat to deep mining. Currently, the explanation for…
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Cyclic Crack Monitoring of a Reinforced Concrete Column under Simulated Pseudo-Dynamic Loading Using Piezoceramic-Based Smart Aggregates Open
Structural health monitoring is an important aspect of maintenance for bridge columns in areas of high seismic activity. In this project, recently developed piezoceramic-based transducers, known as smart aggregates (SA), were utilized to p…
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Evaluation of the dynamic response of triply periodic minimal surfaces subjected to high strain-rate compression Open
Architected cellular structures based on triply periodic minimal surfaces (TPMS) have attracted significant attention due to their lightweight, superior, and controllable mechanical properties. Such lattice structures can be potential cand…
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Conceptualization and preliminary study of engineering disturbed rock dynamics Open
Many large engineering projects, e.g., the Sichuan–Tibet Railway, inevitably cross the earthquake active areas and the geology complicated zones, facing the challenges of dynamic disturbances and disasters. In view of this, the conceptuali…
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Research progress on the dynamic compressive properties of ultra-high performance concrete under high strain rates Open
Ultra-high performance concrete (UHPC) has been accepted rapidly attributed to its superior mechanical performance and the split Hopkinson pressure bar (SHPB) is being widely utilized to evaluate the dynamic compressive properties of UHPC.…
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Dynamic Mechanical Compression of Chondrocytes for Tissue Engineering: A Critical Review Open
Articular cartilage functions to transmit and translate loads. In a classical structure-function relationship, the tissue resides in a dynamic mechanical environment that drives the formation of a highly organized tissue architecture suite…
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Similar simulation study on the deformation and failure of surrounding rock of a large section chamber group under dynamic loading Open
Large and super-large section chamber groups in coal mines are frequently affected by dynamic loads resulting from production activities such as roadway driving and blasting. The stability of the surrounding rock is poor, and it is difficu…
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Modelling the cyclic ratcheting of sands through memory-enhanced bounding surface plasticity Open
The modelling and simulation of cyclic sand ratcheting is tackled by means of a plasticity model formulated within the well-known critical state, bounding surface SANISAND framework. For this purpose, a third locus – termed the ‘memory sur…
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Experimental and numerical investigations on the tensile mechanical behavior of marbles containing dynamic damage Open
To investigate the degradation mechanism of static tensile mechanical behaviors of marble containing dynamic damage, multiple impact loading tests were performed on the disc marble samples, and then static Brazilian tests were conducted fo…
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Nucleation and Arrest of Dynamic Rupture Induced by Reservoir Depletion Open
Seismic events induced by the depletion of hydrocarbon reservoirs can cause damage to housing and cause societal and economic unrest. However, the factors controlling the nucleation and size of production‐induced seismic events are not wel…
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Numerical study on the structural response of blast-loaded thin aluminium and steel plates Open
The inelastic response of thin aluminium and steel plates subjected to airblast loading is studied numerically and validated against experimental data. Special focus is placed on the influence of elastic effects and negative phase on the s…
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The Effect of High Loading Rate on the Behaviour and Mechanical Properties of Coal‐Rock Combined Body Open
In order to investigate the high loading rate effect on the behaviour and mechanical properties of coal‐rock combined body, the dynamic compressive tests were conducted by using the Split‐Hopkinson Pressure Bar (SHPB) device under the load…
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Dynamic mechanical characteristics and application of constant resistance energy-absorbing supporting material Open
In deep underground engineering, rock burst and other dynamic disasters are prone to occur due to stress concentration and energy accumulation in surrounding rock. The control of dynamic disasters requires bolts and cables with high streng…
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Dynamic Loading and Tendon Healing Affect Multiscale Tendon Properties and ECM Stress Transmission Open
The extracellular matrix (ECM) is the primary biomechanical environment that interacts with tendon cells (tenocytes). Stresses applied via muscle contraction during skeletal movement transfer across structural hierarchies to the tenocyte n…
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Static and Dynamic Strain Monitoring of Reinforced Concrete Components through Embedded Carbon Nanotube Cement-Based Sensors Open
The paper presents a study on the use of cement-based sensors doped with carbon nanotubes as embedded smart sensors for static and dynamic strain monitoring of reinforced concrete (RC) elements. Such novel sensors can be used for the monit…
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Dynamic compression characteristics of layered rock mass of significant strength changes in adjacent layers Open
Layered rock mass of significant strength changes for adjacent layers is frequently observed in underground excavation, and dynamic loading is a prevalent scenario generated during excavation. In order to improve the driving efficiency and…
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Effects of coupled static and dynamic strain rates on mechanical behaviors of rock-like specimens containing pre-existing fissures under uniaxial compression Open
Rocks containing pre-existing fissures in underground engineering are likely to be subjected to static pre-stress and dynamic loads simultaneously. Understanding the deformation and failure mechanism of fissured rocks under coupled static …
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Dynamic failure of dry and fully saturated limestone samples based on incubation time concept Open
This paper outlines the results of experimental study of the dynamic rock failure based on the comparison of dry and saturated limestone samples obtained during the dynamic compression and split tests. The tests were performed using the Ko…
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Fracturing behavior around a blasthole in a brittle material under blasting loading Open
Dynamic fracturing behavior in brittle materials under blasting loading occurs in a very short time. It is usually challenging to observe the behavior experimentally. Therefore, visual observation of the fracturing behavior can be useful i…
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Role of dynamic bonds on fatigue threshold of tough hydrogels Open
Significance Dynamic bonds have been found to enhance fracture toughness of hydrogels as sacrificial bonds, but the role of dynamic bonds to fatigue threshold of hydrogels is poorly understood because the wide dynamic range of viscoelastic…
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On the dynamic response of blast-loaded steel plates with and without pre-formed holes Open
The dynamic response of blast-loaded steel plates is studied both experimentally and numerically. The blast loading was generated using a shock tube facility. This is an alternative to explosive detonations where the blast intensity is eas…
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Brittle materials at high-loading rates: an open area of research Open
Brittle materials are extensively used in many civil and military applications involving high-strain-rate loadings such as: blasting or percussive drilling of rocks, ballistic impact against ceramic armour or transparent windshields, plast…
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Mechanical behaviour of medium-grained sandstones exposed to differential cyclic loading with distinct loading and unloading rates Open
This work aims to investigate the mechanical behaviour of medium-grained sandstones under cyclic loading with different loading/unloading rates. This type of cyclic loading is called differential cyclic loading (DCL) and is considered for …
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Experimental investigation of the dynamic behavior of railway track with sleeper voids Open
The deterioration of the sleeper support on the ballasted track begins with the accumulation of sleeper voids. The increased dynamic loading in the voided zone and the ballast contact conditions cause the accelerated growth of the settleme…
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Effect of Cyclic Loading Frequency on Liquefaction Prediction of Sand Open
The frequency of ground motions during earthquakes is typically in the order of a few hertz. As the earthquake-induced liquefaction of soils is widely assessed by performing laboratory tests, it is necessary to consider various loading fre…
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Performance of geosynthetic-encased stone column-improved soft clay under vertical cyclic loading Open
This paper presents the results of a laboratory investigation into the performance of geosynthetic-encased stone column-improved (GESC-improved) soft clay under vertical cyclic loading. A reduced-scale model is adopted to perform a series …
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Full-field Ultrahigh-speed Quantification of Dynamic Shear Ruptures Using Digital Image Correlation Open
Producing dynamic ruptures in the laboratory allows us to study fundamental characteristics of interface dynamics. Our laboratory earthquake experimental setup has been successfully used to reproduce a number of dynamic rupture phenomena, …
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Strength and Failure Characteristics of Natural and Water‐Saturated Coal Specimens under Static and Dynamic Loads Open
Rock bursts occur frequently in coal mines, and the mechanical properties of saturated coal specimens under coupled static‐dynamic loading need to be studied in detail. Comparative tests of coal specimens having different water content und…
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Experimental study of sliding friction damper with composite materials for earthquake resistant structures Open
This paper presents the experimental results from 62 tests on five non-metallic friction pads that could be potentially used in friction dampers for minimizing earthquake-induced damage in buildings. The friction pads are composed of fibre…
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Mechano-Regulation of Trabecular Bone Adaptation Is Controlled by the Local in vivo Environment and Logarithmically Dependent on Loading Frequency Open
It is well-established that cyclic, but not static, mechanical loading has anabolic effects on bone. However, the function describing the relationship between the loading frequency and the amount of bone adaptation remains unclear. Using a…