Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 16 of 16 for “"Open-hole"”.
-
Damage Progression in Open-Hole Tension Composite Laminates by the Element-Failure Method
… element code to model the damage propagation in open-hole tension composites. Using a failure criterion called the strain invariant failure theory (SIFT) in conjunction with the fiber ultimate strain, the damage patterns and ultimate strengths of composites predicted by the EFM agree very well …
-
A multiscale, statistical approach to model open-hole strength size effect in woven composites
L'abstract è presente nell'allegato / the abstract is in the attachment
-
A Comprehensive Methodology For Well Ramp-up of Open Hole Stand-Alone Screen Completions
… to monitor and ramp-up production for open hole stand-alone screen (OH-SAS) completion that optimizes production by considering risks of production impairment and screen erosion failure. Laboratory evaluations of drill-in fluids showed non-uniform filter cake clean-up or presence of …
-
Solution to Certain Problems in the Failure of Composite Structures
… and micromechanical scales for unnotched (no hole) and specimens containing a centrally-located, through-thickness circular hole are compared. 8 hole-diameters ranging from 1.00 - 12.7 mm are considered. On the micromechanical scale, the intrinsic flaw ranges between approximately 10 and 100 …
-
Finite element-based failure models for carbon/epoxy tape composites
… Failure models for IM7/8552 carbon/epoxy tape open-hole tensile coupons are built and validated.
-
Towards structural health monitoring in carbon nanotube reinforced composites
… various CNT network architectures were tested in open-hole tension. Samples tested were quasiisotropic carbon fiber, carbon fiber prepreg with unidirectional knocked-down CNT surface patch, and fuzzy fiber reinforced plastic (FFRP) samples, which consist of radially grown CNTs on a woven ceramic …
-
Reservoir characterization of the Aldrich, Aldrich NE and Keilman North fields, Ness County, Kansas for potential exploration of sub-Mississippian formations
… an active water-drive, which was produced by an “open-hole” completion method. This precluded drilling deeper horizons. Although modern drilling and completion techniques allow drilling through and isolating water-drive reservoirs like the Mississippian, very few deep exploratory wells have been …
-
Interacting stress concentration factors and their effect on fatigue of metallic aerostructures
… components, a situation can arise where a hole is mislocated so that it interferes with a radius, chem-mill step, machined step, or some other similar detail. The interaction of stress concentration effects between a hole and step are not well understood and the resulting impact on fatigue …
-
Isogeometric Finite Element Code Development for Analysis of Composite Structures
… concentration factor in a composite plate with a hole. Isogeometric nonlinear/linear finite element code is developed for static and dynamic analysis of laminated composite plates. Nurbs linear, quadratic, higher-order and k-refined elements are constructed using various refinement procedures and …
-
Effect of Galvanic Corrosion on Crack Propagation of Cold Expanded Holes in AA2024-T3
… corrosion may be induced, since cold-worked holes are often fastened to dissimilar materials. While cold expansion on holes with initial cracks has shown to obtain the same benefits in previous research, another step must be taken to simulate realistic applications in aggressive …
-
Time-Lapse Variations of Multi-Component Electrical Resistivity Measurements Acquired in High-Angle Wells
… are becoming increasingly popular in LWD and open-hole environments. At the same time, field experience indicates that invasion and time of logging can have a significant effect on multi-component induction measurements acquired in high-angle wells, specifically in the presence of highly …
-
Concurrently coupled multiscale modeling of polymer nanocomposites
… polymer, EPON 862. The composite laminate open hole tension problem is also studied using concurrent multiscale approach by implementing micromechanics program MAC/GMC in FEA frame.
-
Oil Potential of Middle Cretaceous Tight Carbonate in Mexico
… by well A1 and tested oil successfully during an open-hole test covering interval 5356 to 5515 m (MD) that produced oil of 33 degrees API. Initial pressure was 1050 kg/cm2 at 5,227 m (14,934.51 psi at 17,144 ft) that diminished gradually to 450 kg/cm2 (6,400.5 psi). Oil rates varied between 2,200 …
-
Nanocomposite Coating Mechanics via Piezospectroscopy
… from digital image correlation is reviewed on an open hole tension, composite coupon. The two complementary measurements allow for a unique PS response for every location around the hole with a spatial resolution of 400 microns. Progression of intermediate damage mechanisms was observed before …
-
Numerical Simulation of pressure Transient Analysis in Tight Formation and Field Data Categorization and Typical Well Production Data Analysis
… from tight formations, naturally completed (open-holed) or cased horizontal wells with multi-stage hydraulic fractures are the most popular implementation for completion. The use of a combination of the multi-fractured horizontal wells is expected to create a complex sequence of flow regimes …
-
Out of autoclave manufacturing of cfrps having multiscale reinforcement for improved interlaminar fracture toughness and multifunctional characteristics
… three-point bending (3PB) and tensile plain and open-hole tests were performed. More precisely, at the first two manufacturing techniques (Dip-Coating and Two-Step), composite laminates were produced with various CNTs concentrations (0, 0.5, 1, 1.5 and 2.5 wt.%). During the Interleaving Technique …