For the past decades researchers are showing immense interest to investigate the natural advantage of preparation of composites from minerals such as bauxite particles, and proved their effectiveness as cost effective reinforcing agents in fabrication of high performance composites. This study, is a new attempt in using the Iraqi natural bauxite powder with different proportions (2wt%, 4wt%, an...

ABSTRACT The compaction measurements of Quaternary and Tertiary Gulf Coast aquifer system sediments in the Houston-Galveston region (TX) show spatially variable compression 0.08 to 8.49 mm/yr because geohistorical overburden pressure when groundwater levels were stable after about year 2000. An aquifer-system creep equation is developed for evaluating this compression, with a thickness-weighted...

Digital image correlation (DIC) is a popular optical strain measurement technology for deformation analysis in rock mechanics laboratory testing. Although reliable and repeatable, traditional gauge extensometer techniques have drawbacks including high recurring cost limited spatial distribution of data. DIC utilizes continuous photography computer software to track paint speckle pixel displacem...

The measurement method with the application of an extensometer for detection manifestation tectonic strain is presented in this paper. instrument operated underground construction engineering purposes, and authors applied it a deeply placed old mine gallery Bochnia Salt Mine, just at boundary Outer Carpathians which commonly considered to be tectonically active zone. study characterized by two ...

Works carried out to monitor the displacements of Vallcebre landslide (Pyrenees range, NE Spain) since 1987 are presented. The landslide, which extends over an area about 0.8 km2 and affects more than 20 × 106 m3, has experienced up one meter per year in some points periods. It been periodically monitored 1987, using a wide range surface in-hole techniques: triangulation with theodolite, Terres...

This work investigates the effect of fibre architecture on mechanical properties composite laminates fabricated from natural sisal fibres reinforced with polyethylene polymer matrix. The main objective for this is to determine which architectural pattern produces best material in terms that can be employed use fabrication engineering components replace more expensive produced highly synthetic m...

OBJECTIVE Evaluation of the force system produced by four brands of b-Ti wires bent into an elaborate design. METHODS A total of 40 T-loop springs (TLS) hand-bent from 0.017 x 0.025-in b-Ti were randomly divided into four groups according to wire brand: TMATM(G1), BETA FLEXYTM (G2), BETA III WIRETM (G3) and BETA CNATM (G4). Forces and moments were recorded by a moment transducer, coupled to a...

We introduce a finite-element-model-updating-based open-source framework to identify mechanical parameters of heterogeneous hyperelastic materials from in silico generated full-field data which can be downloaded here https://github.com/aflahelouneg/inverse_identification_soft_tissue. The numerical process consists simulating an extensometer performing vivo uniaxial tensile experiment on soft ti...