Library

X
Language
Preferred search index
Number of Hits per Page
Default Sort Criterion
Default Sort Ordering
Size of Search History
Default Email Address
Default Export Format
Default Export Encoding
Facet list arrangement
Maximum number of values per filter
Auto Completion
Feed Format
Maximum Number of Items per Feed
Permalink If you want to be able to use settings permanently, you must save your settings and then set a Bookmark to the permalink
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles: DFG German National Licenses  (11)
  • 1980-1984  (7)
  • 1975-1979  (4)
Source
  • Articles: DFG German National Licenses  (11)
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Synthetic reactions using organotin and sulfur compounds. 3. Regioselective desulfonylation of allylic sulfones with organotin hydride involving double migration of the double bond (1979)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 101 (1979), S. 5414-5415 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00512a051
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Stability problem of Kirkwood Gaps (1978)
    [s.l.] : Nature Publishing Group
    Nature 275 (1978), S. 568-568 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] KIANG noticed1 the importance of the Kirkwood Gaps (particularly the Hecuba Gap) in contrast to Hilda Group in the asteroidal distribution problem, and presented a solution to this problem using a stability criterion inherited in Hill's equation which, he assumed, clarifies the difference between ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/275568b0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    AN X-RAY MICROSCOPE USING GRAZING INCIDENCE TOROIDAL MIRRORS (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 342 (1980), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1980.tb47217.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Detection of IgE insulin antibody with radioallergosorbent test (1978)
    Springer
    Diabetologia 14 (1978), S. 33-38 
    Details
    ISSN: 1432-0428
    Keywords: IgE insulin antibody ; insulin allergy ; radioallergosorbent test ; highly purified insulin ; IgE ; monocomponent insulin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary An in vitro method for detecting IgE insulin antibody using the principle of the radioallergosorbent test (RAST) is described. In six patients with insulin allergy, the RAST values were higher than in normal persons or insulin-treated diabetics without insulin-allergy. No differences were observed between normal persons and insulin-treated diabetics without insulin-allergy. Moreover, it was observed that in one patient treated with highlypurified insulin, there was a gradual decrease of RAST value parallel to the radioinsulin binding activity and clinical allergic symptoms. The RAST value of insulin is slightly inhibited by non-IgE antibodies and is, therefore, a semiquantitative value. However, the RAST is simple to perform and reproducible; It therefore is very useful in the detection of IgE insulin antibodies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429705
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Statistical approach to time-dependent failure of brittle material (1983)
    Springer
    International journal of fracture 21 (1983), S. 285-300 
    Details
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Résumé Dans un mémoire précédent, on analysait, par une combinaison de la théorie d'un processus stochastique et d'une distribution aux valeurs extremes des longueurs de fissure, la rupture d'un matériau fragile due à la croissance lente d'une fissure sous des conditions de mise en charge constante. Dans le présent mémoire, le traitement statistique présenté dans le mémoire précédent a été amélioré et a été étendu en vue de prédire les probabilités en fonction du temps, de rupture et de localisation de la rupture dans des matériaux fragiles sous des conditions de charge dynamique. Une confirmation expérimentale de la méthode analytique est obtenue en utilisant comme modèle de système matériau/environnement des éprouvettes en verre sollicitées dans de l'eau à température ambiante.
    Notes: Abstract In a previous paper [1], the failure of brittle material due to slow crack growth under constant loading condition was analyzed by combining the theory of stochastic process and the extreme value distribution of crack length. In the present paper, the statistical treatment in the previous paper is improved and extended to predict the time-dependent probabilities of fracture and fracture location of brittle materials under dynamic loading condition. Experimental confirmation of the analytical method is obtained using soda-lime glass in water as the model material environmental system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00942347
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Elastodynamic analysis of crack by finite element method using singular element (1978)
    Springer
    International journal of fracture 14 (1978), S. 59-68 
    Details
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Résumé La méthode des éléments finis utilisant un élément singulier au voisinage de l'extrémité d'une fissure a été étendue aux problèmes élastodynamiques des fissures tels qu'ils se posent lorsque la fonction de déplacement d'un élément singulier est prise à partir de la solution d'une fissure en cours de propagation. Le facteur d'intensité des contraintes dynamiques correspondant à des fissures de mode III ou des déformations de mode I dans une plaque finie a été déterminé. Les résultats des calculs correspondant à des fissures stationnaires ou des fissures en cours de propagation sous des charges dynamiques sont comparées aux solutions analytiques obtenues par d'autres auteurs. On montre que la méthode présentée décrit de façon satisfaisante la variation en fonction du temps du facteur d'intensité des contraintes dans les problèmes de fissuration dynamique.
    Notes: Abstract The finite element method using a singular element near the crack tip is extended to the elastodynamic problems of cracks where the displacement function of the singular element is taken from the solution of a propagating crack. The dynamic stress intensity factor for cracks of mode III or mode I deformations in a finite plate is determined. The results of computation for stationary cracks or propagating cracks under dynamic loadings are compared with the analytical solutions of other authors. It is shown that the present method satisfactorily describes the time variation of the stress intensity factor in dynamic crack problems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00032384
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Dynamic analysis of cracked linear viscoelastic solids by finite element method using singular element (1980)
    Springer
    International journal of fracture 16 (1980), S. 97-109 
    Details
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Résumé La méthode par éléments finis permettant d'aborder le problème dynamique des solides linéaires viscoélastiques fissurés est développée en recourant à un élément singulier pour lequel la fonction de déplacement est prise dans une solution analytique au voisinage del'extrémité de la fissure. La variation dans le temps des facteurs d'intensité de contrainte dynamique est déterminée pour une fissure centrale et pour une fissure oblique dans des plaques rectangulaires standard en matériau linéaire viscoélastique soumises à une sollicitation dynamique.
    Notes: Abstract The finite element method for the dynamic problem of cracked linear viscoelastic solids is developed using the singular element where the displacement function is taken from the analytical solution near the crack-tip. The time variation of the dynamic stress intensity factors is determined for a center crack and an oblique crack in standard linear viscoelastic rectangular plates subjected to dynamic loading.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00012615
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Statistical approach to delayed failure of brittle materials (1980)
    Springer
    International journal of fracture 16 (1980), S. 459-469 
    Details
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Résumé Des essais de rupture différée ou essais de fatigue statique ont été exécutés sur un verre calcique sodé dans un environnement d'eau. Les essais consistaient en une flexion en quatre points et en une flexion en trois points à charge constante. On a mesuré le temps à la rupture et la localisation de la rupture sur les éprouvettes. En combinant la théorie du processus stochastique avec la distribution aux valeurs extrèmes de la contrainte et de la fonction de distribution de la probabilité de rupture en fonction du temps, on a pu prédire le temps à la rupture des éprouvettes ainsi que la localisation de la rupture. On montre que la prédiction théorique est en bon accord avec les données expérimentales.
    Notes: Abstract Delayed failure tests or static fatigue tests were performed on soda-lime glass in water environment. Testing consisted of four-point bend and three-point bend with constant load. The time-to-failure and fracture location of specimens were measured. The theory of stochastic process is combined with the extreme value distribution in stress and the time dependent probability distribution function is obtained to predict the time-to-failure of specimens as well as the location of fracture. It is shown that the theoretical prediction is in good agreement with the experimental data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00016584
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Effects of microvoids on crack blunting and initiation in ductile materials (1984)
    Springer
    International journal of fracture 24 (1984), S. 267-278 
    Details
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Résumé On examine les effets d'une nucléation et d'une croissance de micro-cavités sur les champs de contrainte et de déformation au voisinage de l'extrémité d'une fissure en recourant au modèle constitutif de Gurson pour les solides poreux plastiques, et en utilisant une méthode par éléments finis formulée de manière à admettre des modifications importantes de géométrie. On montre que les microcavités coalescent et croissent rapidement en avant de la fissure sur une distance inférieure au diamètre qu'atteint l'arrondissement de la fissure et qu'elles ont une grande influence sur le champ de contrainte qui règne dans cette région. On étudie également l'influence d'une grande lacune au voisinage de l'extrémité d'une fissure sur l'amorçage de la cassure, en prenant en compte le cisaillement local. On montre que la valeur critique du COD à l'extrémité de la fissure telle que prédite par la présente étude coïncide avec les données expérimentales de la littérature.
    Notes: Abstract Effects of microvoid nucleation and growth on the stress and strain fields near a crack tip are studied by employing the Gurson's constitutive model of porous plastic solids and by using a finite element method suitably formulated to admit large geometry change. It is shown that microvoids nucleate and grow rapidly in the region at a distance less than the blunted tip diameter away from the crack tip and have a great influence on the stress fields therein. Effects of a large void near a crack tip on crack initiation are also investigated by taking the shear localization into account. The critical value of the crack tip opening displacement predicted by the present investigation is shown to coincide with the published experimental data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00020741
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Computer simulation of fast crack propagation in brittle material (1980)
    Springer
    International journal of fracture 16 (1980), S. 3-13 
    Details
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Résumé On présente une méthode pour simuler le comportement d'une fissure en propagation rapide, utilisant la méthode des éléments finis avec un élément singulier. On suppose que l'extrémité de la fissure se meut de telle sorte que soit satisfait un critère de rupture dynamique selon lequel la vitesse de relaxation de l'énergie dynamique est égale à une énergie de rupture spécifique au cours du processus de dégradation. Une simulation est effectuée dans le cas d'une fissure dans une plaque rectangulaire sujette à une charge appliquée de manière soudaine; cette simulation indique que le comportement dynamique d'une fissure tel qu'il se présente au moment du démarrage d'une propagation de fissure, d'une bifurcation ou d'un arrêt d'une fissure, est influencé de manière profonde par l'amplitude et par la durée en fonction du temps de la charge appliquée.
    Notes: Abstract A method is presented to simulate the behavior of a rapidly running crack by employing the finite element method with a singular element. The crack-tip is assumed to move so as to satisfy a dynamic fracture criterion that the dynamic energy release rate be equal to a specific fracture energy during failure. Simulation is carried out for a crack in a rectangular plate subjected to a suddenly applied load, and it has indicated that the dynamic behavior of a crack, such as onset of crack propagation, bifurcation, or stopping, is deeply influenced by the magnitude and the time duration of the applied load.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00042382
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...