Direct Shear Test on Expanded Polystyrene (EPS
... EPS geofoam is characterized by very low density (nearly 100 times lesser than soil) with potentially high compressibility, good flexural strength and high rupture strength in shear. The weakest plane in the failure of EPS geofoam under fill load was found to be at the interface between EPS geofoam ...
... EPS geofoam is characterized by very low density (nearly 100 times lesser than soil) with potentially high compressibility, good flexural strength and high rupture strength in shear. The weakest plane in the failure of EPS geofoam under fill load was found to be at the interface between EPS geofoam ...
Bounding the plastic strength of polycrystalline solids by linear
... resulting surface (3.8) bounds from the outside the strength domain of all polycrystals belonging to that particular subclass—see Nebozhyn et al. (2001). In turn, the computation of the functions v (r) in v requires the solution of the optimization problem (3.3). Since the P (r) are closed convex se ...
... resulting surface (3.8) bounds from the outside the strength domain of all polycrystals belonging to that particular subclass—see Nebozhyn et al. (2001). In turn, the computation of the functions v (r) in v requires the solution of the optimization problem (3.3). Since the P (r) are closed convex se ...
Asp_calcite_FCM_Main_NatMat_Symplectic author accepted
... as expected based on its charge under the crystallization conditions, such that equivalent morphologies are observed at much higher solution concentrations of Gly than Asp (eg. 100 -200 mM Gly as compared with 10-20 mM Asp). The amounts of amino acids occluded within these crystals were determined u ...
... as expected based on its charge under the crystallization conditions, such that equivalent morphologies are observed at much higher solution concentrations of Gly than Asp (eg. 100 -200 mM Gly as compared with 10-20 mM Asp). The amounts of amino acids occluded within these crystals were determined u ...
Ductile Ceramics
... during loading above T. Basal slip was found in A- and B-oriented specimens and prismatic slip in C-oriented specimens. The resolved stresses at yield (according to the author) are comparable to those measured by other researchers under compression in the appropriate slip system. Note that the impac ...
... during loading above T. Basal slip was found in A- and B-oriented specimens and prismatic slip in C-oriented specimens. The resolved stresses at yield (according to the author) are comparable to those measured by other researchers under compression in the appropriate slip system. Note that the impac ...
XRD and FT-IR Studies on Lead (II) Nitrate doped Histidine Picrate
... The organic non-linear optical (NLO) crystals with aromatic rings have attracted much attention because of their wide transparency range, fast response and high damage threshold for device applications. However, the shortcomings of aromatic crystals, such as poor physicochemical stability, low hardn ...
... The organic non-linear optical (NLO) crystals with aromatic rings have attracted much attention because of their wide transparency range, fast response and high damage threshold for device applications. However, the shortcomings of aromatic crystals, such as poor physicochemical stability, low hardn ...
Effect of material and geometric parameters on deformations near
... impact a shear band initiating from the notch-tip propagated nearly parallel to the notch-axis, got arrested and a crack ensued from the shear band tip. They attributed the difference in their and Kalthoff’s experimental results to different values of material parameters. We note that Kalthoff liste ...
... impact a shear band initiating from the notch-tip propagated nearly parallel to the notch-axis, got arrested and a crack ensued from the shear band tip. They attributed the difference in their and Kalthoff’s experimental results to different values of material parameters. We note that Kalthoff liste ...
Kinetics and Diffusion Basic concepts in kinetics
... ΔGmv, is called the activation free energy for vacancy motion. It comes from the thermal energy of atomic vibrations (thermal energy of an atom in a solid ≈ 3kT).
...
... ΔGmv, is called the activation free energy for vacancy motion. It comes from the thermal energy of atomic vibrations (thermal energy of an atom in a solid
Spatial resolution in atom probe tomography
... As depicted in Figure 1, in atom probe tomography, the atoms from the surface of a needleshaped specimen are ionized and desorbed from the surface under the effect of a very intense electric field, in a process known as field evaporation(Müller, 1956). The electric field is partly pulsed to enable t ...
... As depicted in Figure 1, in atom probe tomography, the atoms from the surface of a needleshaped specimen are ionized and desorbed from the surface under the effect of a very intense electric field, in a process known as field evaporation(Müller, 1956). The electric field is partly pulsed to enable t ...
Three-dimensional Full-field X
... In this model we represent each voxel as a stack of discretized orientations, each representing the contribution of that voxel to a particular orientation. Allowing many orientations per each voxel, it blows up the number of unknowns By minimizing the l1-norm of the 6D representation, sparse solutio ...
... In this model we represent each voxel as a stack of discretized orientations, each representing the contribution of that voxel to a particular orientation. Allowing many orientations per each voxel, it blows up the number of unknowns By minimizing the l1-norm of the 6D representation, sparse solutio ...
Elastic-Plastic-Creep Analyses of Brazed Carbon
... about ten percent when compared to those analyses in which only elastic-plastic behavior of the OFHC is accounted for. The primary reason that creep effects at higher temperatures are not more significant is that the total strains developed in the OFHC tube are about the same whether achieved by an ...
... about ten percent when compared to those analyses in which only elastic-plastic behavior of the OFHC is accounted for. The primary reason that creep effects at higher temperatures are not more significant is that the total strains developed in the OFHC tube are about the same whether achieved by an ...
Lattice parameter determination using a curved position
... 1928). As the dopant concentration increases, negatively charged dopant cations tend to interact with positively charged oxygen vacancies. The attractive interactions between these two defects lead to the formation of local defect structures, which as a result contract the unit cell and lower the mo ...
... 1928). As the dopant concentration increases, negatively charged dopant cations tend to interact with positively charged oxygen vacancies. The attractive interactions between these two defects lead to the formation of local defect structures, which as a result contract the unit cell and lower the mo ...
STRUCTURE AND CRYSTALLOGRAPHIC TEXTURE IN THE Cu
... Weakness of the texture components Tand after increase in strain was observed also in [18,21] where it is explained by development of dynamic recrystallization. In this case, component B was more stable to grain growth than component A. After eight ECAP passes at T = 20 r C on the PF (111) one can s ...
... Weakness of the texture components Tand after increase in strain was observed also in [18,21] where it is explained by development of dynamic recrystallization. In this case, component B was more stable to grain growth than component A. After eight ECAP passes at T = 20 r C on the PF (111) one can s ...
Stress and Strain
... relationships, and the stress–strain diagrams of two or more materials can be compared to determine which material is relatively stiffer, harder, tougher, more ductile, and/or more brittle. Before explaining these concepts related to the strength of materials, it is appropriate to first analyze a typ ...
... relationships, and the stress–strain diagrams of two or more materials can be compared to determine which material is relatively stiffer, harder, tougher, more ductile, and/or more brittle. Before explaining these concepts related to the strength of materials, it is appropriate to first analyze a typ ...
Connecting mesoscopic and macroscopic scale lengths for
... micro-cracks e.g. (Vakulenko and Kachanov, 1971, Chaboche, 1988, He and Curnier, 1995). Nevertheless, the existence of numerous theoretical models of brittle micro-cracked material based different choice of damage variables merely showed the missing of consensus in this domain e.g. (Rabier, 1989; He ...
... micro-cracks e.g. (Vakulenko and Kachanov, 1971, Chaboche, 1988, He and Curnier, 1995). Nevertheless, the existence of numerous theoretical models of brittle micro-cracked material based different choice of damage variables merely showed the missing of consensus in this domain e.g. (Rabier, 1989; He ...
Catastrophic vs Gradual Collapse of Thin-Walled
... distribution histogram in Figure 2c. Notably, the only significant difference between these two sets of samples is the cylinder wall thickness, as they were prepared by the same electroless plating process for different time durations, resulting in identical internal microstructure. We find that the col ...
... distribution histogram in Figure 2c. Notably, the only significant difference between these two sets of samples is the cylinder wall thickness, as they were prepared by the same electroless plating process for different time durations, resulting in identical internal microstructure. We find that the col ...
alanine barium chloride - Rasayan journal of chemistry
... In recent years, organo-inorganic hybrid materials have attracted considerable attention. In particular, the inorganic derivatives of protein amino acids are often attributed to symmetric groups without an inversion centre mostly to polar symmetry groups. Their crystals have properties whose symmetr ...
... In recent years, organo-inorganic hybrid materials have attracted considerable attention. In particular, the inorganic derivatives of protein amino acids are often attributed to symmetric groups without an inversion centre mostly to polar symmetry groups. Their crystals have properties whose symmetr ...
A micro-mechanical investigation of bifurcation in granular materials
... emphasized that the magnitude of the strain rate remains unknown, and only the direction is determined, which belongs to the kernel of the tangent constitutive matrix N . Basically, the plastic surface splits the stress space into two parts: the inner part (plastic domain) and the outer part insid ...
... emphasized that the magnitude of the strain rate remains unknown, and only the direction is determined, which belongs to the kernel of the tangent constitutive matrix N . Basically, the plastic surface splits the stress space into two parts: the inner part (plastic domain) and the outer part insid ...
5823/ INVENTORS 48X "
... impurity atoms from the upper surface thereof to form an N layer have been tried without acknowledged success. 10 wafer on a conducting support, positioning the assembly within a reaction chamber, heating the support thereby That this same problem of providing a high resistivity heating the wafers b ...
... impurity atoms from the upper surface thereof to form an N layer have been tried without acknowledged success. 10 wafer on a conducting support, positioning the assembly within a reaction chamber, heating the support thereby That this same problem of providing a high resistivity heating the wafers b ...
A - Free-lancers.net
... impurities. So experimental data about radiation changes of scintillation crystals can be quite different even for ‘good’ samples depending on a dislocation density and seed pore concentration. This circumstance complicates the research of mechanisms of crystal radiation damages. The study of these ...
... impurities. So experimental data about radiation changes of scintillation crystals can be quite different even for ‘good’ samples depending on a dislocation density and seed pore concentration. This circumstance complicates the research of mechanisms of crystal radiation damages. The study of these ...
Strength of materials
... the slope of the stress-strain curve at any point is called the tangent modulus. The tangent modulus of the initial, linear portion of a stress-strain curve is called Young's modulus, also known as the tensile modulus. It can be experimentally determined from the slope of a stress-strain curve creat ...
... the slope of the stress-strain curve at any point is called the tangent modulus. The tangent modulus of the initial, linear portion of a stress-strain curve is called Young's modulus, also known as the tensile modulus. It can be experimentally determined from the slope of a stress-strain curve creat ...
Grain subdivision and recrystallization in oligocrystalline tantalum
... compared to grain 2. In addition, the driving force provided by the subgrain structure surrounding the nucleus is larger in grain 1 due to its larger amount of ...
... compared to grain 2. In addition, the driving force provided by the subgrain structure surrounding the nucleus is larger in grain 1 due to its larger amount of ...
Title Goes Here
... can be explained by the decrease of the number of grains over the cross-section. The specific conditions of orientation and size of every single grain are now reflected in the forming result as it is no longer averaged by a huge number of grains. For example, the micro size tensile tests at room tem ...
... can be explained by the decrease of the number of grains over the cross-section. The specific conditions of orientation and size of every single grain are now reflected in the forming result as it is no longer averaged by a huge number of grains. For example, the micro size tensile tests at room tem ...
p181B 01 09 2006 zhang
... The magnitude of the membrane stress in the passivation can be very high. This is understood as follows. The interfacial shear stress τ 0 is due to the mismatch in the CTEs of the epoxy and the silicon, so that the magnitude of τ 0 will not decay with the cycles. Recall that the interfacial shear st ...
... The magnitude of the membrane stress in the passivation can be very high. This is understood as follows. The interfacial shear stress τ 0 is due to the mismatch in the CTEs of the epoxy and the silicon, so that the magnitude of τ 0 will not decay with the cycles. Recall that the interfacial shear st ...
Grains and grain boundaries in highly crystalline monolayer
... the molybdenum atoms and the dimmer spots are the two stacked sulphur atoms. The hexagonal lattice is clearly visible, as indicated by the top- and side-view schematics in Fig. 1d. No point defects, atomic substitutions or voids were initially observed within single crystals. However, defects readil ...
... the molybdenum atoms and the dimmer spots are the two stacked sulphur atoms. The hexagonal lattice is clearly visible, as indicated by the top- and side-view schematics in Fig. 1d. No point defects, atomic substitutions or voids were initially observed within single crystals. However, defects readil ...
The fracture toughness of a cordierite square lattice
... the bend strength of a SENB specimen, with the microstructure of a square lattice modelled explicitly. 2.2.2. Fracture of a discrete ±45° square lattice A series of FE calculations on a SENB specimen made from the discrete ±45° square lattice have been performed to validate Eqs. (10) and (11). Each ...
... the bend strength of a SENB specimen, with the microstructure of a square lattice modelled explicitly. 2.2.2. Fracture of a discrete ±45° square lattice A series of FE calculations on a SENB specimen made from the discrete ±45° square lattice have been performed to validate Eqs. (10) and (11). Each ...
Dislocation
In materials science, a dislocation is a crystallographic defect, or irregularity, within a crystal structure. The presence of dislocations strongly influences many of the properties of materials. The theory describing the elastic fields of the defects was originally developed by Vito Volterra in 1907, but the term 'dislocation' to refer to a defect on the atomic scale was coined by G. I. Taylor in 1934. Some types of dislocations can be visualized as being caused by the termination of a plane of atoms in the middle of a crystal. In such a case, the surrounding planes are not straight, but instead they bend around the edge of the terminating plane so that the crystal structure is perfectly ordered on either side. The analogy with a stack of paper is apt: if half a piece of paper is inserted in a stack of paper, the defect in the stack is only noticeable at the edge of the half sheet.There are two primary types: edge dislocations and screw dislocations. Mixed dislocations are intermediate between these.Mathematically, dislocations are a type of topological defect, sometimes called a soliton. The mathematical theory explains why dislocations behave as stable particles: they can be moved around, but they maintain their identity as they move. Two dislocations of opposite orientation, when brought together, can cancel each other, but a single dislocation typically cannot ""disappear"" on its own.