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  • 1
    Electronic Resource
    Electronic Resource
    A method of the small plastic deformation analyzing the circular cantilever beam impact problem (1988)
    Springer
    Acta mechanica solida Sinica 1 (1988), S. 401-406 
    Details
    ISSN: 0894-9166
    Keywords: dynamic plastic response ; travelling plastic hinge ; complete rigid-plastic solution ; rigid-perfect plasticity ; fully plastic bending moment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02207619
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  • 2
    Electronic Resource
    Electronic Resource
    Lee's extremum principle and the large deflection response of dynamically loaded plastic structures (1991)
    Springer
    Acta mechanica solida Sinica 4 (1991), S. 369-379 
    Details
    ISSN: 0894-9166
    Keywords: dynamic plastic response ; Lee's extremum principle ; evolutionary mode ; large deflection ; portal frame
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract An approximate method based on Lee's extremum principle is introduced to study the large deflections of dynamically loaded plastic structures. As an example, the evolutionary mode of an impulsively loaded rigid-perfectly plastic portal frame is determined and then compared with the experimental results [8] and with the large deflection complete solution obtained previously [9]. It is found that the evolutionary modal solution may approach the complete solution if the modes are appropriately chosen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02207586
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  • 3
    Electronic Resource
    Electronic Resource
    Experimental investigation of circular cantilever beams subjected to impulsive loading (1988)
    Springer
    Acta mechanica solida Sinica 1 (1988), S. 301-313 
    Details
    ISSN: 0894-9166
    Keywords: dynamic plastic response ; travelling plastic hinge ; elastic-perfectly plasticity ; elastic viscoplasticity ; rigid-perfectly plastic model ; elastic wave ; pipe-whip
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract This paper reports the experimental results of quadrantal circular cantilever beam carrying a mass at its tip which is subjected to radial impact. It was observed that after impact a travelling plastic segment moved from the tip towards the root in a very short time, and when specimen reached the largest deformation, the beam whipped out evidently in the reverse direction. The curvature change of the curved beam reaches a peak value near the middle region of the beam and the maximum is at the root. The experimental results are compared with the solutions for the rigid-perfectly plastic model given in [12–13].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02207260
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  • 4
    Electronic Resource
    Electronic Resource
    Dynamic response of a rigid plastic simply supported imperfect beam subjected to a uniform intense dynamic loading (1991)
    Springer
    Acta mechanica solida Sinica 4 (1991), S. 15-32 
    Details
    ISSN: 0894-9166
    Keywords: simply supported beam ; imperfection ; intense dynamic loading ; rigid plasticity ; complete solutions ; distribution of dissipated energy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract This paper proposes a theoretical analysis for the dynamic response of a rigid perfectly plastic simply supported beam with an imperfection in the midspan cross-section under uniform step, pulse, and impulsive loading when support is assumed to be free to move inward. The complete solutions for an entire dynamic response process are given and the relationship between the distribution of energy dissipated at plastic hinges and the parameter of imperfection is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02208107
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  • 5
    Electronic Resource
    Electronic Resource
    A further study of the anomalous response of an elastic-plastic structural model to impulsive loading (1990)
    Springer
    Acta mechanica solida Sinica 3 (1990), S. 387-401 
    Details
    ISSN: 0894-9166
    Keywords: elastic-plastic dynamic response ; anomalous behavior ; the DTS model ; impulsive loading ; deformation history
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The dynamic response to impulsive loading of a new elastic-plastic structural model, i.e. the double-tier-spring (DTS) model, is further studied to explore the dependence of the deformation history of the springs in the model on the structural and loading parameters, so as to deepen the understanding of the intrinsic mechanism of the anomalous behavior for a certain range of parameters' combination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02284771
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  • 6
    Electronic Resource
    Electronic Resource
    Chemoreception of oviposition inhibiting terpenoids in the diamondback moth Plutella xylostella (1998)
    Springer
    Entomologia experimentalis et applicata 87 (1998), S. 143-155 
    Details
    ISSN: 1570-7458
    Keywords: Plutella xylostella ; oviposition inhibitor ; contact chemoreceptor ; morphology ; electrophysiology ; ablation ; terpenoids ; sensory mechanism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The effects of six terpenoids and two terpenoid containing extracts of the neem tree (Azadirachta indica A. Juss.) on oviposition by the diamondback moth (Plutella xylostella L., Yponomeutidae: Lepidoptera) were tested. Two drimane terpenoids, the sesquiterpenoid polygodial and the neem extract Margosan-O exerted significant inhibitory effects at the dosages tested. Ablation experiments showed that both antennae and fore-tarsi contributed to mediation of the inhibition by a drimane. Location of chemosensilla on prothoracic tarsi and ovipositor was examined by scanning electronmicroscopy. Electrophysiological recordings from ovipositor and tarsal taste sensilla showed that distilled water produced distinct responses from one neuron. In tarsal sensilla, ethanol and drimane solutions produced responses from two neurons, one of which might be the water cell that fired at a reduced rate. A drimane significantly decreased the responses of tarsal chemoreceptors to a cabbage leaf extract, which is a possible sensory mechanism leading to behavioural avoidance of this compound.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003296514369
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  • 7
    Electronic Resource
    Electronic Resource
    A generalized variational principle of composite shallow shells and its application to the folded shell (1986)
    Springer
    Applied mathematics and mechanics 7 (1986), S. 677-685 
    Details
    ISSN: 1573-2754
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Mathematics , Physics
    Notes: Abstract In this paper, a generalized variational principle of elastodynamics in composite shallow shells with edge beams is presented, and its equivalence to corresponding basic equations, ridge conditions and boundary conditions is proved. Then this variational principle is applied to the folded shell structure. By means of double series, the approximate analytical solutions for statics and dynamics under common boundary conditions are obtained. The comparison of our results with FEM computations and experiments shows the analytical solutions have good convergence and their accuracy is quite satisfactory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01895979
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  • 8
    Electronic Resource
    Electronic Resource
    Interfacial stress concentration and the effect of residual microstress on tensile fracture in filled epoxy resinsThis project was supported by National Natural Science Foundation of China. (1993)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 33 (1993), S. 1027-1032 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Interfacial stress concentrations in rubber-filled epoxy resin and glass bead-filled epoxy resin systems were studied by a photoelastic method. We found that the stress concentration is independent of the applied stress and the particle size, but decreases with increasing chemical bonding at the interface between rubber and matrix. For the rubber-filled system, stress concentration is present at the equator of particles, while for either the untreated or treated glass bead-filled system, it is on the two poles. The effect of interfacial residual microstress on tensile fracture was studied, and results showed that the function of residual microstress is limited as tensile elongation increases.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760331604
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  • 9
    Electronic Resource
    Electronic Resource
    On the thermal behavior and mechanism of residual microstress buildup at the matrix interface in filled epoxy resinsProject supported by National Natural Science Foundation of China. (1993)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 33 (1993), S. 474-479 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: We have detailed the effects of annealing and temperature on the residual microstress at the matrix interface in rubber-filled and glass bead-filled epoxy resin systems. We found that annealing renders changes in residual microstress. The closer the annealing temperature to the glass transition temperature of the sample, the more pronounced the annealing effect on the stress. Also, we examined the interfacial residual microstress and found a linear relationship with annealing temperature. A description of the mechanism of the interfacial microstress buildup is proposed.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760330805
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  • 10
    Electronic Resource
    Electronic Resource
    A study of the residual microstress at the matrix interface in filled epoxy resins (1992)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 32 (1992), S. 678-685 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Using the technique of photoelasticity, we have studied in detail the magnitude of the residual microstress at the matrix interface between epoxy resin and rubber particles or glass beads. A spheric stress-optic equation applicable to these composites was derived. The photoelastic figures induced by the interfacial residual microstresses and the factors affecting the intensity of light are discussed. The experimental results show that the residual microstresses at the matrix interface are independent of the particle size of rubbers or glass beads, but depend on the nature of fillers, which have different thermal expansion coefficients and mechanical properties. Thermal history and interfacial chemical bonding of filled epoxy resins have distinct effects on the residual interfacial microstresses and the matrix internal stresses.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760321006
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