Study on Relationships Between Structures and Stress Concentration of Tensile Specimens of Brittle Materials

doi:10.19491/j.issn.1001-9278.2009.09.018

China Plastics ›› 2009, Vol. 23 ›› Issue (09): 80-84 .DOI: 10.19491/j.issn.1001-9278.2009.09.018

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Study on Relationships Between Structures and Stress Concentration of Tensile Specimens of Brittle Materials

LIU Xian-Feng HONG Jian-cheng BU Hai-tao ZHANG Xiong-wei WU Shi-jian

Received:2009-05-22 Revised:2009-06-26 Online:2009-09-26 Published:2009-09-26

Abstract

Abstract: UG software was applied to formulate a three-dimensional model, based on which the tensile stress distribution in a polystyrene dumb-bell specimen was simulated using ANSYS finite element software. The factors causing stress concentration were analyzed in the different transitionary structures. The finite element analysis indicated that the maximal tensile stress occurred in domain of the transitionary circular arc 1～3 mm. The relationship between geometric parameter and stress concentration factor was formulated data fitting.

Key words: tensile specimens, transitionary structure, stress concentration, simulate, polystyrene

LIU Xian-Feng HONG Jian-cheng BU Hai-tao ZHANG Xiong-wei WU Shi-jian. Study on Relationships Between Structures and Stress Concentration of Tensile Specimens of Brittle Materials[J]. China Plastics, 2009, 23(09): 80-84 .

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Study on Relationships Between Structures and Stress Concentration of Tensile Specimens of Brittle Materials

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