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Showing 1 to 20 of 65 for “"compression test"”.
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Development of a constrained piston method for compression testing of carbon foams
… purpose of this study is to develop a standard compression test for gathering mechanical strength properties, namely yield stress, modulus, and energy absorption all during a single compression test. Several carbon foams were tested using both the novel constrained method (developed herein) and …
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Desempenho de crianças em escalas de comportamento agressivo e emoção
… of facial expressions was performed by using the Test of Emotion Comprehension (TEC), and to see how children recognize facial expressions in bullying we used the instrument called Facial Expression Recognition test Bullying Situations: REF-B. The results showed no significant correlation between …
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Experiments on powder metals
… experimental program consisting of triaxial compression, torsion ring shear, uniaxial strain compression, and simple compression test systems has been conducted to investigate the room temperature deformation response of powders ranging from a relative density of n = 0.4 - 0.9. A torsion ring …
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Fatigue Performance of Brass Light Pole Couplings
Bending tests were performed on behalf of the Illinois Department of Transportation on Copper Development Association 360 brass notched specimens of with internal threading and an external notch cut to a depth of 0.150 in the first design in square, diamond, and individual loading configurations. …
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Mechanical characterization of jammable granular systems
… blasting media, sand, and ground coffee were tested under different vacuum pressures in a procedure similar to an unconsolidated-undrained triaxial compression test for soils. Coffee was found to have the highest strength to weight ratio. Literature predictions of the trend between applied …
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Encapsulation of particles using brittle coatings for subterranean applications
… in water before and after being subjected to a compression test. Polyurethane-coated particles had a high leach prior to compression and were considered unsuitable. Acrylate coatings gave much better results. The addition of significant quantities of silica in the coat increased significantly …
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Cyclic deformation of a clay
Dynamic loading tests consisting of one hundred sinusoidal strain-controlled cycles at 0.2 cps. followed by a compression test to failure were conducted on remoulded, fully saturated clay triaxial specimens. Electrical transducers coupled with automatic recording equipment were used to measure …
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Development of Magnetorheological Elastomer System for Adaptive Vibration Isolation
… of the AB system, and large-scale component testing and evaluation. In addition, since no fabrication and testing systems were available in the market, testing and fabrication units were developed to facilitate the manufacturing of small and large-size MRE specimen, and a double-lap shear …
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Deformation Localization in Constrained Layers of Metallic Glasses: A Parametric Modeling Analysis
… ob- servations based on the micropillar compression test. The deformation pattern in a multilayered metallic glass structure as well as the deformation pattern in a metallic glas beam subjected to four point bending are also examined.
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FAILURE MECHANISMS OF STRUCTURAL ADHESIVE JOINTS
… not recover their strength. Stress analysis on compression test data showed no plasticisation. The significant level of water surrounding the joints above which their strength fails rapidly has been estimated to be around 0.7. There is therefore the possibility of a different rate of water …
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Geotechnical characterization of coal refuse for use as a backfill material
… provide ground support. Based on this review, a testing program was conducted to examine properties of coal refuse which are pertinent to its placement and its ability to act as a ground support material. The testing program consisted of the slake durability test, plasticity test (Atterberg's …
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Factors Affecting Strength Gain and Development of a Laboratory Testing Procedure
… in Alexandria, Virginia. As part of the test embankment program, two different commercial laboratories performed laboratory tests on treated soil, and they produced strikingly different unconfined compression test results. Further, both sets of results are different from test results for …
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Applications of finite element method in studying mechanical behavior of concrete materials on different scales
… which is further used for simulating a uniaxial compression test in Abaqus/CAE. The simulation result is qualitatively reasonable, suggesting a potential of using this approach for further exploring the foam crushing behavior. The second study focuses on investigating the thermal induced movement …
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Numerical Model for the Lateral Compression Response of a Plastic Cup
… load. The aim of the analysis is to simulate a test in which the cup is supported horizontally in a fixture on a testing machine platen, and a loading nose attached to the actuator is displaced downward into the cup. The numerical model is developed using the software packages MSC.Patran, …
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Modeling and Simulation of Viscoplasticity, Recrystallization, and Softening of Alloyed Steel During Hot Rolling Process
… metal during hot rolling process. Gleeble hot compression tests were performed to provide experimental stress-strain curves at different temperatures and strain rates. An inverse finite element analysis was performed to calibrate the experimental curves. Viscoplastic models including a …
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CBR and unconfined compressive strength tests on a lime stabilized clay soil
… any existing correlation between OBR and UCS tests. 2. To show variation in UCS due to various methods of curing Using a Harvard miniature apparatus, compactive curves were determined for standard AASHO compactive effort for 0, 5, and 10 percent lime. From these curves the moisture contents to …
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A Study of Air Flow Effects on the Cushioning Characteristics of Multi Layered Pre-Compressed Fibreboard
… methods. The models were verified by a static compression test for the pre-compression and by dropping a mass, or platen and recording the resistive acceleration, or dynamic behaviour, over a time range. There exists an acceleration component prior to platen contact, which is also modelled and …
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Evaluation of Elastic-Plastic and Damage Models for Ultra High Performance Concrete (UHPC)
… materials: two types of HPCs without fibers with compression strengths of 70MPa and 100MPa, and one UHPC with fibers with compression strength of 170MPa. The material parameters in the constitutive models were optimized for HPC and UHPC by fitting uniaxial and triaxial compression test data.</p> …
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Numerical Modelling of Corrugated Paperboard Boxes
… properties are then used in full scale box compression test simulations. The finite element model closely reproduces the experimental response, predicting peak load and the in–plane and out–of–plane displacements at peak load within 1.4 %, 7.7 %, and 2.2 %, respectively. The proposed section …
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The mechanical behavior of heavily overconsolidated resedimented Boston Blue Clay
… Boston Blue Clay (RBBC), as an analog test material. The uniformity, reproducibility, and extensive knowledgebase on this clay permit the investigation of only the effect of overconsolidation. A series of undrained triaxial compression shear tests have been performed on specimens that …
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