o Values for the temperature at another depth in the concrete structure According to RWS, for concrete under compression in an underwater tunnel the requirements are T < 250°C for the steel reinforcement, and T<380°C for the concrete surface. Cracking and deformation . Monitoring of cracking shall be

Dec 01,  · Shock Wave's Peak Pressure data obtained by the numerical simulation is in good agreement with the prediction results of Henry's Formula. The results of reinforced concrete structural damage, including collapse radius and deflection, are in good agreement with the experimental phenomenon and data obtained by Wang et al. ( ).

the uplift pressure distribution in the crack and what is the pressure variation during opening or sudden crack closure. To answer this question, a pilot study presented here describes the possibilities and limitations of experiment and technology as an examination method for water pressure in propagation concrete cracks.

Various impact velocities (250-800 m/s) and jet diameters (1.0-3.0 mm) were simulated to investigate the effect of incident parameters on the dynamic responses and damage behaviors of the concrete material. The simulation results were also verified by water-jet impact experiments. The results show that the model can reproduce the nonlinear

May 17,  · Development of an efficient numerical model for hail impact simulation based on experimental data obtained from pressure sensitive film Mechanics Research Communications, Vol. 38, Damage resistance of single lap adhesive composite joints by transverse ice impact

May 04,  · This study investigates the effect of free water on the mechanical properties and blast resistance of concrete. For this purpose, comparative experiments on saturated and normal concretes subjected to quasi-static compression, cyclic loading-unloading, quasi-static splitting, and dynamic compression are conducted. Thereafter, contact explosion tests are performed on saturated and

Experimental investigations on the stochastic nonlinear behavior of eight half-scale reinforced concrete (RC) frames with the same conditions in the companion paper indicates that the coupling effect between randomness and nonlinearity of concrete will cause a remarkable fluctuation in structural nonlinear responses.

underwater transmission construction. The conductors are hollow and filled with an insulating fluid that is pressurized to 25 to 50 psi. In addition, the three cables are independent of each other. They are not placed together in a pipe. Each cable consists of a fluid-filled conductor insulated with high-quality kraft paper and protected

3rd of March : Seismic simulation of reinforced concrete with max. 1.2 g acceleration on all axes - ANSYS WB Transient Structural ( video) 25th of February : Rotation simulation of a bearing with cracked rings or races - ANSYS Workbench Explicit Dynamics ( video)

Shield tunneling is one of the most important technologies for building of underground engineering. Many grouting holes were prefabricated for the requirement of backfill grouting, which is easy to induce local damages and potential disasters, such as leakage and cracking. Accordingly, an integrated workflow for damage detection and stability evaluation was performed based on nondestructive

realistic 3D simulation of all kinds of robots from walking machines up to ying and underwater robots. But so far, support for the simulation of negative pressure adhesion in the context of mobile clim robots is still missing. This paper presents the simulation of CROMSCI 1 which is a complex wheel-based clim robot with negative

resulting pressure function has a peak value of about 2500 psi and decays exponentially down to a value of about 850 psi in 0.62 milliseconds. This exponential behavior of the free-field shock wave is extremely convenient and lends itself to straightforward computations when evaluating shock wave impulse and energy, as will be shown later.

Simulation portal for managing and tracking simulation processes, history and content In addition to being able to simulate structural behavior using CAE, many engineers and managers are concerned with making sure the simulation process is repeatable, to ensure high confidence results and enable process improvement, and also that it can be re

Jun 14,  · Concrete ties have become a promising alternative to timber ties for freight lines with increased curvature, high annual traffic, and large axle loads. They are also widely adopted in passenger lines. High strength (HS) concrete is the material of choice in the fabrication of prestressed concrete

Jul 24,  · Simulation results on tracking a cylinder with ellipsoidal cross-section are presented to illustrate the approach. On the experimental side, we demonstrate the use of an artificial lateral line prototype comprising six ionic polymer-metal composite (IPMC) flow sensors in the tracking and size estimation of a moving circular cylinder.

This paper gives a brief explanation of the failure mechanism of rock fragmentation in rock cutting. The JOHNSON_HOLMGIST_CONCRETE is selected as the rock material model in numerical simulation with confining pressure and damage influence introduced. We use the non-linear dynamic finite element software LS/DYNA to simulate the dynamic process of cutting rock.

Effect of Washout Loss on Bond Behavior of Steel Embedded in Underwater Concrete. Publication: Structural Journal Date: 5/1/ Simulation of Water Pressure on Washout of Underwater Concrete Repair. Publication: Materials Journal Date: 11/1/

The results on hysteresis simulations on homogenized polycrystalline SMA show that there is no concrete dissipationless zone though are bounded by the complete transformation curves. These simulations provide critical pointers to modeling dissipative behavior of the material under partial cycles of loading at the macroscopic phenomenological level.

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The physical, chemical, and mechanical behavior of drilling fluid is critical for the successful drilling operation. In order to characterize it, permeability plugging test is carried out.

A Composite Rigid Body Algorithm for Modeling and Simulation of an Underwater Vehicle Equipped With Manipulator Arms and at design stage behavior of underwater vehicles was studied. the emphasis here is on the modeling of the pressure drag. Recent advances in underwater position and velocity sensing enable real-time centimeter-precision