2 Characteristic methods

AbstractThis article discusses some characteristic methods and structures shared by modern Western and classical Chinese poetry, focusing on the works of Georg Trakl and major poets of the T’ang dynasty. Among the similarities examined are the preference for concrete imagery over abstract, discursive statement; the paratactical juxtaposition of images, which leaves their logical, temporal, and grammatical relationships unspecified and often ambiguous; and the tendency for images to become “ciphers” that suggest, but do not support, metaphorical interpretation. There is also a reluctance to obtrude a first-person speaker onto the scene, and this has led some critics to label Symbolist-post-Symbolist and Chinese poetry “impersonal”; this essay argues, however, that the hidden subjectivity of even the most “impersonal” poem should not be overlooked. Nevertheless, the omission of subject does frequently increase ambiguities among the other elements of a work and contributes to the “poetics of discontinuity” common to the two traditions.

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A Unified Characteristic Theory for Plastic Plane Stress and Strain Problems

Journal of Applied Mechanics ◽

10.1115/1.1602484 ◽

2003 ◽

Vol 70 (5) ◽

pp. 649-654 ◽

Cited By ~ 8

Author(s):

Y.-Q. Zhang ◽

H. Hao ◽

M.-H. Yu

Keyword(s):

Plane Stress ◽

Yield Criterion ◽

Strength Criterion ◽

Rigid Plastic ◽

Strength Criteria ◽

Special Cases ◽

Characteristic Theory ◽

Characteristic Methods ◽

Von Mises ◽

Suitable Characteristic

Based on the unified strength criterion, a characteristic theory for solving the plastic plane stress and plane strain problems of an ideal rigid-plastic body is established in this paper, which can be adapted for a wide variety of materials. Through this new theory, a suitable characteristic method for material of interest can be obtained and the relations among different sorts of characteristic methods can be revealed. Those characteristic methods on the basis of different strength criteria, such as Tresca, von Mises, Mohr-Coulomb, twin shear (TS) and generalized twin shear (GTS), are the special cases (Tresca, Mohr-Coulomb, TS, and GTS) or linear approximation (von Mises) of the proposed theory. Moreover, a series of new characteristic methods can be easily derived from it. Using the proposed theory, the influence of yield criterion on the limit analysis is analyzed. Two examples are given to illustrate the application of this theory.

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