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  • 05. General::05.01. Computational geophysics::05.01.05. Algorithms and implementation  (2)
  • L'Aquila earthquake  (1)
  • cristallinity behavior
  • 1
    Electronic Resource
    Electronic Resource
    Thermal and structural analysis and crystallization behavior of new poly(ether-alkyl) oxadiazoles (1994)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 32 (1994), S. 1643-1651 
    Details
    ISSN: 0887-6266
    Keywords: polyoxadiazoles ; structural analysis ; cristallinity behavior ; cyclodehydration reaction ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A new series of poly(ether-alkyl)oxadiazoles of general formula: with m = 3, 4, and 5 has been obtained from the corresponding polyhydrazides through thermal cyclization reaction. The polymers were characterized by infrared spectroscopy, differential scanning calorimetry, wide-angle x-ray analysis, and optical microscopy. The polymers were crystalline, with a crystalline texture and structural parameters strongly dependent on the value of m. The Tm's and Tg's value decreased with increasing number of CH2. © 1994 John Wiley & Sons, Inc.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1994.090320907
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    Paper (German National Licenses)
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  • 2
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    FEMSA: A finite element simulation tool for quasi-static seismic deformation (2007)
    Details
    Publication Date: 2017-04-04
    Description: Modeling postseismic deformation is an increasingly valuable tool in earthquake seismology. In particular, the Finite Element (FE) numerical method allows accurate modeling of complex faulting geometry, inhomogeneous materials and realistic viscous flow, appearing an excellent tool to investigate a lot of specific phenomena related with earthquakes.
    Description: Unpublished
    Description: San Francisco, CA, USA
    Description: open
    Keywords: faulting sources ; coseismic deformation ; finite element method ; 05. General::05.01. Computational geophysics::05.01.05. Algorithms and implementation
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Poster session
    Format: 7635002 bytes
    Format: application/pdf
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    PAPER (OA)
  • 3
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    Trade--Off Between Seismic Source Detail and Crustal Heterogeneities in Spherical 3D Finite Element Modeling: the 2004 Sumatra Earthquake case-study (2010)
    Details
    Publication Date: 2017-04-04
    Description: Finite Element methods (FEMs) are a powerful numerical simulation tool for modeling seismic events as they allow to solve three-dimensional complex models. We used a 3D Finite Element approach to evaluate the co-seismic displacement eld produced by the devastating 2004 Sumatra Andaman earthquake, which caused permanent deformations recorded by continuously operating GPS networks in a region of unprecedented extent. Previous analysis of the static displacement fi eld focused on the heterogeneous distribution of moment release on the fault plane; our intention here is to investigate how much the presence of crustal heterogeneities trades off seismic source details. To this aim, we adopted a quite simple source model in modeling the event. The key feature of our analysis is the generation of a complex three dimensional spherical domain. More-over, we also made an accurate analysis concerning boundary conditions, which are crucial for FE simulations.
    Description: Submitted
    Description: 3.3. Geodinamica e struttura dell'interno della Terra
    Description: JCR Journal
    Description: open
    Keywords: Finite element method ; 3D modeling ; boundary conditions ; 05. General::05.01. Computational geophysics::05.01.05. Algorithms and implementation
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: manuscript
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  • 4
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    Complex 3D Finite Element Modeling of the April 6th 2009 L'Aquila Earthquake by Inverse Analysis of Static Deformation (2012)
    Wiley-Blackwell
    Details
    Publication Date: 2017-04-03
    Description: On 2009 April 6 a Mw = 6.3 earthquake struck the Abruzzi region (Central Italy) and caused severe destruction in L’Aquila and the surrounding area. In this work we present a Finite Element analysis of the event based on a realistic complex 3-D model, accounting for topographic relief and rheological heterogeneities deduced from local tomography. Finite Element computed Green’s functions were implemented in a linear inversion of GPS coseismic displacements, to retrieve the slip distribution on the rupture plane. The inverted slip models basically agree with previous studies carried out on homogeneous domains, but reveal the presence of a single high slip patch, whereas half-space or 1-D approaches obtain a more complex slip pattern. Our results point out that the introduction of 3-D features significantly influences the obtained source model, suggesting a trade-off between domain complexities and source details.
    Description: Published
    Description: 1339–1358
    Description: 3.3. Geodinamica e struttura dell'interno della Terra
    Description: JCR Journal
    Description: restricted
    Keywords: Numerical approximations and analysis ; Seismicity and tectonics ; Dynamics and mechanics of faulting ; L'Aquila earthquake ; 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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