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Showing 1 to 20 of 42 for “"Combined Loading"”.
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Plastic analysis of dented tubes subjected to combined loading
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1988.
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Mechanical response of unidirectional Boron/Aluminum under combined loading
… composite material under monotonic and cyclic loading conditions, namely: Iosipescu Shear, Off-Axis Tension and Compression. The characterization of the elastic and plastic response includes the elastic material properties, yielding and subsequent hardening of the unidirectional composite under …
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Fatigue optimization of an induction hardened shaft under combined loading
… induction hardened, steel shaft subjected to combined bending and torsional loading. Finite element analysis is used first to develop unit-load factors for generating stress-time histories, and then, employing thermo-elastic techniques, to determine the residual stresses resulting from …
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Performance of RC Bridge Columns under Cyclic Combined Loading including Torsion
… with outrigger bents, can be subjected to cyclic combined loading including axial, flexure, shear, and torsion loads during earthquakes. This combined loading condition would affect the performance of RC bridge columns with respect to strength, stiffness, deformation and progression of damage, and …
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Crash behavior of three dimensional thin-walled structures under combined loading
… thin-walled structures subject to combined loading is solved analytically and numerically. Also, several new design concepts of strengthening "S" shaped frame with regard to weight efficiency and energy absorption are proposed. The mechanics of biaxial bending collapse and the …
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Combined Loading of Composite Box-Beams with Linearized Differential Equations of Motion
… composite box-beam under static, transverse loading. Small deflections are assumed and the differential equations of motion have been linearized for ease of calculation. The Smith and Chopra stiffness matrix is used in the equations of motion, and software was written to solve for the …
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Stress concentration factors of stepped structures and shouldered shafts under combined loading
… with varying fillets and varying size ratios. Combined loading conditions were placed on the models to observe how the loading conditions effect the stress concentration factors. The results from the finite element analyses were compared to Peterson’s photoelastically determined stress …
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Seismic behavior of circular reinforced concrete bridge columns under combined loading including torsion
… spans and column heights can be subjected to combined loading including axial, flexure, shear, and torsion loads during earthquakes. The combination of axial loads, shear force, and flexural and torsional moments can result in complex failure modes of RC bridge columns. This study carried out …
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Numerical and physical modelling of piled rafts on soft clay under combined loading
… combinations of vertical, lateral, and moment loading, under cyclic and seismic conditions. Examples of structures commonly founded on piled rafts include, e.g., high-rise buildings, bridge piers and wind turbines on weak soils, where the possibility of high differential settlements or the lack …
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Towards a unified design-by-analysis solution to pressure vessel nozzle-shell junctions under combined loading
… reinforcements, stress linearization, external loading cases, limit loads, and cyclic loads. In addition, elastic, elastic - perfectly plastic, full plastic and fracture analysis were performed.Stress intensity factors are obtained with the results of finite element analysis for various internal …
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A study of the deflection and strength of partially prestressed concrete beams with unbonded tendons
… were tested under short-term and sustained loading and a combination of sustained loading with intermittent short-term cyclic loading(combined loading). Two additional ordinary reinforced concrete beams were tested under combined loading for comparison purposes. Results indicated that a …
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A critical analysis of the acoustic emission technique for NDE of pressure vessels
… However, doubts still exist concerning the loading procedure to accomplish the acoustic emission testing, especially, in a pressure vessel where a uniform pressure can produce a nonuniform stress distribution due to the presence of the singularities such as the nozzles and supports. The …
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Modeling the Stimulation of Vestibular Hair Cell Bundles Using Computational Fluid Dynamics and Finite Element Analysis
… (physiologic for free-standing bundles), and combined loading (physiologic for bundles with tip attachments) conditions to determine how the bundles behaved in each case. The bundles differed in the heights of their components, their length and width, and their number of steriocilia. Tip links …
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Use of a Multi-Axis Robotic Testing Platform to Investigate the Sagittal Mechanics of the Multi-Body Lumbar Spine
… different protocols: pure moment, eccentric loading, and a new method called combined loading moment. The objectives of the study were to introduce a new protocol that overcomes the limitations of previous methods by applying more realistic loading conditions and to compare the range of …
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Multiscale characterization of thermoacoustic response and fatigue failure of aerospace structures
… modes are attributed to the extreme and coupled loading conditions of the thermoacoustic environment prevalent in hypersonic flight. Prior research has highlighted the resonant behavior of simple structures in a combined loading environment of vibration and heating. The effects of various heating …
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An experimental/analytical investigation of combined shear/end loaded compression strength testing of unidirectional composites
… (ELSS) test scheme was investigated in a combined shear/end loaded mode. This system was examined experimentally and analytically to establish the method as a reasonable alternative to IITRI testing. Combined shear/end loading was accomplished by applying a controlled amount of clamping …
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Combined Tension-Torsion Loading of Braided Composite Structures
… braided composites under tension and torsion loading have been studied individually. Mechanical behaviour of braided composites under combined tension-torsion loading is common, yet no studies have explored this effect. In this study, mechanical properties of carbon fibre, fibreglass and …
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Application of lower bound limit analysis with second-order cone programming for plane strain and axisymmetric geomechanics problems
… of shallow foundations on sand subjected to combined loading. The results are represented as load interaction diagrams. Secondly, the effect of seismic forces on the stability of inclined anchors embedded in frictional soils and the passive earth pressure on a rigid retaining structure is …
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Inelastic Analysis of Reinforced Concrete Beams Subjected to Combined Axial Force, Bending and Torsion
… of reinforced concrete members subjected to combined loading which includes torsion is investigated theoretically for a static monotonically increasing load. A unified model, which is an extension of the space truss model, is developed to solve this problem for rectangular, circular and slab …
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