high strain rate behaviour of woven composite
... the use of these materials in the aerospace industry demands a reliable constitutive damage model to predict their response under high strain rate loading. The current available models do not include rate effects, are too complicated to use, are unable to provide a clear procedure for characterizing ...
... the use of these materials in the aerospace industry demands a reliable constitutive damage model to predict their response under high strain rate loading. The current available models do not include rate effects, are too complicated to use, are unable to provide a clear procedure for characterizing ...
Structure and Mechanical Properties of Fe-Mn Alloys
... high strain hardening rate throughout the course of plasticity. Fe-Mn alloys are a good example of demonstrating such exceptional mechanical behaviour, and thus become an attractive research subject in both the academic fields and industry. In the present work, structure of the Fe-24Mn and Fe-30Mn al ...
... high strain hardening rate throughout the course of plasticity. Fe-Mn alloys are a good example of demonstrating such exceptional mechanical behaviour, and thus become an attractive research subject in both the academic fields and industry. In the present work, structure of the Fe-24Mn and Fe-30Mn al ...
CURRENT TRENDS IN WELDING PROCESSES AND MATERIALS
... new technological strategies are needed, in order to develop welding technology concurrently with the development of new materials [2,3]. Extensive research will also be needed to develop new filler metals and to improve the purity of certain products associated with welding. Improved filler metals ...
... new technological strategies are needed, in order to develop welding technology concurrently with the development of new materials [2,3]. Extensive research will also be needed to develop new filler metals and to improve the purity of certain products associated with welding. Improved filler metals ...
Star-Shaped Conjugated Systems
... A critical question arises only for continued torsions along oligo(1,4-phenylene) [OP] arms A-3. Based on perturbation theory, the decrease of resonance can be described by cos2 for each torsion angle [23]. The resonance of an OP chain of n benzene rings has therefore the attenuation factor (cos2 ...
... A critical question arises only for continued torsions along oligo(1,4-phenylene) [OP] arms A-3. Based on perturbation theory, the decrease of resonance can be described by cos2 for each torsion angle [23]. The resonance of an OP chain of n benzene rings has therefore the attenuation factor (cos2 ...
Icarus Geologic mapping of the Zal region of Io
... Radebaugh et al. (2001), in which the ∼300 km long fracture that separates north and south Zal Mons and that bounds Zal Patera to the west is the source of the lavas flowing into Zal Patera. We further investigated this hypothesis in our mapping. The prominent red diffuse deposits observed in distant ...
... Radebaugh et al. (2001), in which the ∼300 km long fracture that separates north and south Zal Mons and that bounds Zal Patera to the west is the source of the lavas flowing into Zal Patera. We further investigated this hypothesis in our mapping. The prominent red diffuse deposits observed in distant ...
Supporting Information
... The local symmetry and oxidation state of guest POM nanoclusters in the present Zn-CrLDHPOM nanohybrids and their calcined derivatives are also examined using XANES analysis at W LIII-edge and V K-edge. The W LIII-edge XANES spectra of the as-prepared ZCW nanohybrids and their derivatives calcined ...
... The local symmetry and oxidation state of guest POM nanoclusters in the present Zn-CrLDHPOM nanohybrids and their calcined derivatives are also examined using XANES analysis at W LIII-edge and V K-edge. The W LIII-edge XANES spectra of the as-prepared ZCW nanohybrids and their derivatives calcined ...
47.Piezoelectric Ceramics Characterization.pdf
... M/S 238, NASA Langley Research Center, Hampton, VA 23681. ICASE, M/S 132C, NASA Langley Research Center, Hampton, VA 23681-2199. This research was supported by the National Aeronautics and Space Administration under NASA Contract No. NAS1-97046 while the second author was in residence at ICASE, NASA ...
... M/S 238, NASA Langley Research Center, Hampton, VA 23681. ICASE, M/S 132C, NASA Langley Research Center, Hampton, VA 23681-2199. This research was supported by the National Aeronautics and Space Administration under NASA Contract No. NAS1-97046 while the second author was in residence at ICASE, NASA ...
Cadmium zinc telluride and its use as a nuclear radiation detector
... deal of effort by many researchers around the world who have contributed to the development of CZT as a nuclear radiation detector material. Invariably when writing such a review one cannot ensure that all those who have contributed to the field are properly referenced and that all results deserving ...
... deal of effort by many researchers around the world who have contributed to the development of CZT as a nuclear radiation detector material. Invariably when writing such a review one cannot ensure that all those who have contributed to the field are properly referenced and that all results deserving ...
Research of Calcium Phosphates Using Fourier
... synthetic materials based on calcium phosphate (CaP) are hydroxyapatite [HAp Ca10(PO4)6(OH)2], -tricalcium phosphate [ -TCP - Ca3(PO4)2] and biphasic HAp/ -TCP mixture. CaP ceramic demonstrates high biocompatibility and bioactivity while it contacts bone cells, builds a direct chemical connection be ...
... synthetic materials based on calcium phosphate (CaP) are hydroxyapatite [HAp Ca10(PO4)6(OH)2], -tricalcium phosphate [ -TCP - Ca3(PO4)2] and biphasic HAp/ -TCP mixture. CaP ceramic demonstrates high biocompatibility and bioactivity while it contacts bone cells, builds a direct chemical connection be ...
Revisit and insight into the dilemma of strong and brittle materials
... This problem has often hindered us from development of high performance structural engineering materials. Accordingly, in order to obtain some useful suggestion and insight to solve the problem, we need to confirm the current situation of the progress in our fracture research field. Full understanding ...
... This problem has often hindered us from development of high performance structural engineering materials. Accordingly, in order to obtain some useful suggestion and insight to solve the problem, we need to confirm the current situation of the progress in our fracture research field. Full understanding ...
Chapter 18 Starch-based plastics
... considered a favorable factor when there is no plasticizer (Figure 18.3). When plasticizers are added, the effect is inverse, since films with a larger content of amylopectin react more and have a larger plasticity. In this case, starches with lower amylose content can be preferable. Besides the ble ...
... considered a favorable factor when there is no plasticizer (Figure 18.3). When plasticizers are added, the effect is inverse, since films with a larger content of amylopectin react more and have a larger plasticity. In this case, starches with lower amylose content can be preferable. Besides the ble ...
Biomimetic design of materials and biomaterials inspired by the
... — Hierarchical organization of the structure. The biologically controlled growth of natural materials leads to highly multilevel architectures, exhibiting high control over the orientation of structural elements from the molecular level up to the final macroscopic structure (Fratzl & Weinkamer 2007). ...
... — Hierarchical organization of the structure. The biologically controlled growth of natural materials leads to highly multilevel architectures, exhibiting high control over the orientation of structural elements from the molecular level up to the final macroscopic structure (Fratzl & Weinkamer 2007). ...
Mini- Implant Materials: An Overview
... whereas B and D contains small globular particles of beta titanium in a matrix of alpha titanium, Only αtitanium peaks were detected for all implants by micro x-ray diffraction, but beta-titanium was observed in the microstructures of B and D implants, which had significantly higher torsional moment ...
... whereas B and D contains small globular particles of beta titanium in a matrix of alpha titanium, Only αtitanium peaks were detected for all implants by micro x-ray diffraction, but beta-titanium was observed in the microstructures of B and D implants, which had significantly higher torsional moment ...
FTIR, XRD, TGA Investigations of L
... efforts have been taken to improve the quality, growth rate and properties of ADP, by employing new growth techniques, and also by the addition of organic, inorganic and semi organic impurities [5-6]. Organic nonlinear optical materials have large optical susceptibilities, inherent ultrafast respons ...
... efforts have been taken to improve the quality, growth rate and properties of ADP, by employing new growth techniques, and also by the addition of organic, inorganic and semi organic impurities [5-6]. Organic nonlinear optical materials have large optical susceptibilities, inherent ultrafast respons ...
Dynamic Behavior of Polymer at High Strain Rate
... experimentally. In these experiments, a conventional Hopkinson bar was modified and a sensing block is used in order to measure the weak signals transmitted from the specimens of low strength and low mechanical impedance. A pendulum was applied to control the incident pulses in a tensile experiment ...
... experimentally. In these experiments, a conventional Hopkinson bar was modified and a sensing block is used in order to measure the weak signals transmitted from the specimens of low strength and low mechanical impedance. A pendulum was applied to control the incident pulses in a tensile experiment ...
Dynamic propagation of a macrocrack interacting with parallel small
... or not. On the other hand, mesh dependency is a problem for cohesive elements. All of the above problems are making it difficult to correctly simulate crack propagation and especially multiple crack propagation/interaction [5]. Meshfree methods can be a good alternative to finite element method and ...
... or not. On the other hand, mesh dependency is a problem for cohesive elements. All of the above problems are making it difficult to correctly simulate crack propagation and especially multiple crack propagation/interaction [5]. Meshfree methods can be a good alternative to finite element method and ...
Principles of Active Vibration Control
... Piezoelectric materials are materials that produce a voltage when stress is applied. Since, this effect also applies in the reverse manner; a voltage across the sample will produce stress within the sample. The word “piezo” is a Greek word which means “to press”. Therefore, piezoelectricity means el ...
... Piezoelectric materials are materials that produce a voltage when stress is applied. Since, this effect also applies in the reverse manner; a voltage across the sample will produce stress within the sample. The word “piezo” is a Greek word which means “to press”. Therefore, piezoelectricity means el ...
- University of Bath Opus
... acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soo ...
... acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soo ...
Negative stiffness and negative Poisson`s ratio in materials which
... Department of Engineering Physics Engineering Mechanics Program; Biomedical Engineering Department Materials Science Program and Rheology Research Center University of Wisconsin-Madison 541 Engineering Research Building 1500 Engineering Drive, Madison, WI 53706-1687 § Institute for Shock Physics Was ...
... Department of Engineering Physics Engineering Mechanics Program; Biomedical Engineering Department Materials Science Program and Rheology Research Center University of Wisconsin-Madison 541 Engineering Research Building 1500 Engineering Drive, Madison, WI 53706-1687 § Institute for Shock Physics Was ...
Lamellar K2Co3(P2O7)2·2H2O nanocrystal whiskers_ High
... CoOx and PO4 polyhedra (zeolite types), exhibit outstanding electronic/magnetic properties. Due to the layered structure and the redox behaviour of cobalt-based phosphates, these materials hold great promise as electrode materials for electrochemical energy storage devices as was found by our group ...
... CoOx and PO4 polyhedra (zeolite types), exhibit outstanding electronic/magnetic properties. Due to the layered structure and the redox behaviour of cobalt-based phosphates, these materials hold great promise as electrode materials for electrochemical energy storage devices as was found by our group ...
Schematic illustration of cutting with an oblique tool. Note the
... (a) Schematic illustration of right-hand cutting tool. The various angles on these tools and their effects on machining are described in Section 23.3.1 Although these tools traditionally have been produced from solid tool-steel bars, they have been replaced largely with (b) inserts made of carbides ...
... (a) Schematic illustration of right-hand cutting tool. The various angles on these tools and their effects on machining are described in Section 23.3.1 Although these tools traditionally have been produced from solid tool-steel bars, they have been replaced largely with (b) inserts made of carbides ...
selection and evaluation of materials for thermoelectric applications
... Jet Propulsion Laboratory/California Institute of Technology ...
... Jet Propulsion Laboratory/California Institute of Technology ...
CaF Lenses 2
... Technology (NIST, Gaithersburg, Md.), reported that CaF2 suffers from an unexpected intrinsic birefringence at 157 nm. Its birefringence has been measured at ~11 nm/cm, much larger than the ~1 nm/cm birefringence that 157 nm lithography can handle. Such birefringence would cause significant wavefron ...
... Technology (NIST, Gaithersburg, Md.), reported that CaF2 suffers from an unexpected intrinsic birefringence at 157 nm. Its birefringence has been measured at ~11 nm/cm, much larger than the ~1 nm/cm birefringence that 157 nm lithography can handle. Such birefringence would cause significant wavefron ...
Synthetic Strategies, Structure Patterns, and Emerging
... Department of Chemistry and Biochemistry, Goldwater Center for Science and Engineering, Arizona State University, Box 871604, Tempe, Arizona 85287-1604 Received December 4, 1997 ...
... Department of Chemistry and Biochemistry, Goldwater Center for Science and Engineering, Arizona State University, Box 871604, Tempe, Arizona 85287-1604 Received December 4, 1997 ...