Liu.pdf
... geometrical dimensions and material properties, has significant effect on the statistical properties of the stress and the strain of the disc structure. In most cases, due to the complicated relationship between the LCFL and the basic random variables, it is very difficult to derive the statistical ...
... geometrical dimensions and material properties, has significant effect on the statistical properties of the stress and the strain of the disc structure. In most cases, due to the complicated relationship between the LCFL and the basic random variables, it is very difficult to derive the statistical ...
Shape-Memory Micropumps - National Taiwan University
... show great promise in this aspect since their work density is significantly higher than that of other types of materials.26) These alloys are able to recover large strain and are capable of high force, which in turn directly transmit large stoke and high pressure in micropumps. In addition, the disa ...
... show great promise in this aspect since their work density is significantly higher than that of other types of materials.26) These alloys are able to recover large strain and are capable of high force, which in turn directly transmit large stoke and high pressure in micropumps. In addition, the disa ...
Fusion Power Materials
... are reduced activation ferritic/martensitic (RAFM) steel, vanadium alloys, and SiC fiber/SiC composite materials. Currently, ferritic/martensitic steel is the favored option, not least because of the vast amount of technological experience available. Austenitic steels have been ruled out because of t ...
... are reduced activation ferritic/martensitic (RAFM) steel, vanadium alloys, and SiC fiber/SiC composite materials. Currently, ferritic/martensitic steel is the favored option, not least because of the vast amount of technological experience available. Austenitic steels have been ruled out because of t ...
Low temperature surface hardening of stainless steel
... Abstract The incorporation of nitrogen or carbon in steel is widely applied to provide major improvements in materials performance with respect to fatigue, wear, tribology and atmospheric corrosion. These improvements rely on a modification of the surface adjacent region of the material, by the prec ...
... Abstract The incorporation of nitrogen or carbon in steel is widely applied to provide major improvements in materials performance with respect to fatigue, wear, tribology and atmospheric corrosion. These improvements rely on a modification of the surface adjacent region of the material, by the prec ...
06_chapter 1
... various decorative coatings, corrosion resistance coatings, optoelectronic devices like microelectronics, optical coating and integrated optics, informatics quantum engineering, metallurgy coatings, surface engineering and solar energy conversion devices. The reasons for the rising importance of thi ...
... various decorative coatings, corrosion resistance coatings, optoelectronic devices like microelectronics, optical coating and integrated optics, informatics quantum engineering, metallurgy coatings, surface engineering and solar energy conversion devices. The reasons for the rising importance of thi ...
Carbon nanotubes are molecular-scale tubes of graphitic carbon
... metal is added to the anode. It has been known since the 1950s, if not earlier, that carbon nanotubes can also be made by passing a carbon-containing gas, such as a hydrocarbon, over a catalyst. The catalyst consists of nano-sized particles of metal, usually Fe, Co or Ni. These particles catalyse th ...
... metal is added to the anode. It has been known since the 1950s, if not earlier, that carbon nanotubes can also be made by passing a carbon-containing gas, such as a hydrocarbon, over a catalyst. The catalyst consists of nano-sized particles of metal, usually Fe, Co or Ni. These particles catalyse th ...
Super Pressure Balloon Non-Linear Structural Analysis
... Goodyear Shell program have played important roles. Commercial finite element analysis programs have not only been applied to the balloon area, but also to areas where attributes of the fabric material architecture are important.102 American Institute of Aeronautics and Astronautics ...
... Goodyear Shell program have played important roles. Commercial finite element analysis programs have not only been applied to the balloon area, but also to areas where attributes of the fabric material architecture are important.102 American Institute of Aeronautics and Astronautics ...
novacap technical brochure
... decades of time. Units tested 100 hours after last exposure to the Curie Temperature therefore will remain within tolerance for another two decades or 10,000 hours. ELECTRO-MECHANICAL COUPLING Dielectric materials always display an elastic deformation when stressed by an electric field, due to displ ...
... decades of time. Units tested 100 hours after last exposure to the Curie Temperature therefore will remain within tolerance for another two decades or 10,000 hours. ELECTRO-MECHANICAL COUPLING Dielectric materials always display an elastic deformation when stressed by an electric field, due to displ ...
application of shape memory alloys in civil engineering
... applications, alloys with suitable temperature domains of austenitic and martensitic transformation, most likely Fe-based, and efficient methods for the production of such fiber mortars are to be developed. A practical application of such internally pre-stressed cement based materials is envisioned ...
... applications, alloys with suitable temperature domains of austenitic and martensitic transformation, most likely Fe-based, and efficient methods for the production of such fiber mortars are to be developed. A practical application of such internally pre-stressed cement based materials is envisioned ...
Connecting mesoscopic and macroscopic scale lengths for
... Probably scattering losses were more important than adsorption losses for those materials. Similarly, higher harmonic generation was used to capture material degradation by assuming non-linear stress-strain law σ = E ε (1 + βε + …) e.g. (Jhang and Kim, 1999), E being the Young’s elastic modulus. The ...
... Probably scattering losses were more important than adsorption losses for those materials. Similarly, higher harmonic generation was used to capture material degradation by assuming non-linear stress-strain law σ = E ε (1 + βε + …) e.g. (Jhang and Kim, 1999), E being the Young’s elastic modulus. The ...
Introduction to Lattice Dynamics
... • Consider the regular lattice of atoms in a uniform solid material. • There should be energy associated with the vibrations of these atoms. • But they are tied together with bonds, so they can't vibrate independently. • The vibrations take the form of collective modes which propagate through the ma ...
... • Consider the regular lattice of atoms in a uniform solid material. • There should be energy associated with the vibrations of these atoms. • But they are tied together with bonds, so they can't vibrate independently. • The vibrations take the form of collective modes which propagate through the ma ...
Piezo Electricity – Theory - electronics hobby
... symmetrically distributed. This makes the crystal electrically neutral. Each of these sides forms an electric dipole and dipoles near each other tend to be aligned in regions called “Weiss domains”. The domains are usually randomly oriented, but can be aligned during poling, a process by which a str ...
... symmetrically distributed. This makes the crystal electrically neutral. Each of these sides forms an electric dipole and dipoles near each other tend to be aligned in regions called “Weiss domains”. The domains are usually randomly oriented, but can be aligned during poling, a process by which a str ...
Mechanical Energy Domain
... –For metals the K factor is about 2 –For silicon K factor is much higher Crystal orientation ...
... –For metals the K factor is about 2 –For silicon K factor is much higher Crystal orientation ...
Phonons: Lattice Dynamics
... • Consider the regular lattice of atoms in a uniform solid material. • There should be energy associated with the vibrations of these atoms. • But they are tied together with bonds, so they can't vibrate independently. • The vibrations take the form of collective modes which propagate through the ma ...
... • Consider the regular lattice of atoms in a uniform solid material. • There should be energy associated with the vibrations of these atoms. • But they are tied together with bonds, so they can't vibrate independently. • The vibrations take the form of collective modes which propagate through the ma ...
첨단 세라믹소재와 응용 : Glass
... This bearing spherical ball is used for machine tools, such as spindles that rotate at high speeds and for semiconductor manufacturing equipment that can be damaged by metal dust. It is also used in a special environment, such as in hightemperature chemicals. Material EC-141 manufactured from silico ...
... This bearing spherical ball is used for machine tools, such as spindles that rotate at high speeds and for semiconductor manufacturing equipment that can be damaged by metal dust. It is also used in a special environment, such as in hightemperature chemicals. Material EC-141 manufactured from silico ...
application of infinite-element calculations for consolidating a
... process for different test sections with two models, and compared the analysis results with the measured values of the field dynamic-penetration test. The surface-settlement data of dynamic compaction for the process of 7 strikes is presented in Table 2 and the dynamic-compaction settlements are plo ...
... process for different test sections with two models, and compared the analysis results with the measured values of the field dynamic-penetration test. The surface-settlement data of dynamic compaction for the process of 7 strikes is presented in Table 2 and the dynamic-compaction settlements are plo ...
E. Hardness Testing
... Lower variation and greater repeatability of results Disadvantages: Very time consuming Equipment is cumbersome and difficult to use in a roll shop environment As carbide type and volume has little influence, this is not a very good method for determination of outright wear performance of th ...
... Lower variation and greater repeatability of results Disadvantages: Very time consuming Equipment is cumbersome and difficult to use in a roll shop environment As carbide type and volume has little influence, this is not a very good method for determination of outright wear performance of th ...
Comparison of Compression Behaviour of PU Foam and 3D
... Regarding the 3D nonwoven 1, indeed, it presents the least pleated structure (the rate of condensation is the lowest) and open (highest pleat’s angle). Similarly, 2 and 3 nonwovens show better physical characteristics than the nonwoven 1. Regarding the nonwoven 4, in spite of better physical charac ...
... Regarding the 3D nonwoven 1, indeed, it presents the least pleated structure (the rate of condensation is the lowest) and open (highest pleat’s angle). Similarly, 2 and 3 nonwovens show better physical characteristics than the nonwoven 1. Regarding the nonwoven 4, in spite of better physical charac ...
Types of coolants Most important properties of coolants: Cooling
... A sufficient amount of a coolant needs to be supplied at acertain pressure to the worked area during machining in order to perform this function. If the coolant is not supplied to the right place, its effects are suboptimal. The figures show the points/places to which the coolant needs to be supplie ...
... A sufficient amount of a coolant needs to be supplied at acertain pressure to the worked area during machining in order to perform this function. If the coolant is not supplied to the right place, its effects are suboptimal. The figures show the points/places to which the coolant needs to be supplie ...
Characterization of a High Strain Composite Material
... (tape springs) to provide elastically foldable connections. In this case the stored strain energy in the tape springs provides the energy that deploys the structure, but when the structure is folded the curvature changes in the tape springs have to be limited to the elastic range. A third approach i ...
... (tape springs) to provide elastically foldable connections. In this case the stored strain energy in the tape springs provides the energy that deploys the structure, but when the structure is folded the curvature changes in the tape springs have to be limited to the elastic range. A third approach i ...
0131.PDF
... stresses. If genuine, this would suggest that the shear strength of polychloroprene (that is the offset of the Hugoniot from the hydrostat) decreases with increasing shock stress. The observation of the complex response of polymeric materials drives the experimentalist to determine techniques that c ...
... stresses. If genuine, this would suggest that the shear strength of polychloroprene (that is the offset of the Hugoniot from the hydrostat) decreases with increasing shock stress. The observation of the complex response of polymeric materials drives the experimentalist to determine techniques that c ...
Fluid reservoirs in the crust and mechanical coupling between the... lower crust Bruce E Hobbs , Alison Ord
... images of the crust worldwide. The aim of this paper is to develop the mechanical foundations for the formation of such zones. To do so requires an understanding of the distribution of pore fluid pressure in a deforming crust. In a hydrostatically stressed porous material, the pore fluid pressure sh ...
... images of the crust worldwide. The aim of this paper is to develop the mechanical foundations for the formation of such zones. To do so requires an understanding of the distribution of pore fluid pressure in a deforming crust. In a hydrostatically stressed porous material, the pore fluid pressure sh ...
1.5 Modern and smart materials
... Shape memory alloys (SMAs) are a collection of metal alloys that can “remember” their original cold formed shape ...
... Shape memory alloys (SMAs) are a collection of metal alloys that can “remember” their original cold formed shape ...
Earth Science Chapter 19: Earthquakes Chapter Overview Section 1
... Earthquakes are natural vibrations of the ground caused by movement along gigantic fractures in Earth’s crust, or sometimes by volcanic eruptions 1. Stress and Strain Most earthquakes occur when rocks fracture deep within Earth. Fractures form when stress, the force per unit area acting on a materia ...
... Earthquakes are natural vibrations of the ground caused by movement along gigantic fractures in Earth’s crust, or sometimes by volcanic eruptions 1. Stress and Strain Most earthquakes occur when rocks fracture deep within Earth. Fractures form when stress, the force per unit area acting on a materia ...
a cohesive elements based model to describe fracture and cohesive
... model. Cohesive elements are commonly used to model interlaminar fracture mechanisms in composite materials. In this work, they are adopted to simulate both failure and subsequent healing by a specific SH elastomeric system. The SH elastomeric system is initially characterised by means of the identi ...
... model. Cohesive elements are commonly used to model interlaminar fracture mechanisms in composite materials. In this work, they are adopted to simulate both failure and subsequent healing by a specific SH elastomeric system. The SH elastomeric system is initially characterised by means of the identi ...