THE EXPERIMENTAL RESEARCH FOR DESIGN ALLOWABLE OF TENSION STRENGTH OF SW220/430LV COMPOSITE MATERIAL

Abstract

Abstract: The tensile strength design value is an important guideline to weigh the intensity of composite laminates. SW220/430LV composite material is a kind of typical composite material widely used in warships. In order to explore the intensity, the paper carried out the investigation about the tension strength of 0°/90° with referring to GB/T 1447-2005, and worked out tensile strength X_T by B-base value. Then, we get loads responsible to reduction coefficient to make research about tension-shear fatigue and the left stiffness, shear strength, and explore effects of the load characteristics, such as stress ratio, frequency, fatigue cycle to the SW220/430LV composite material at the same time. According to our research, we take 0.45 X_T as the design tensile strength design value for SW220/430LV composite material, when allowing for mechanical fatigue.

Key words: the tensile strength design values, SW220/430LV composite material, tension-tension fatigue, reduction coefficient, left stiffness

CLC Number:

TB332

CHEN Guo-tao, MEI Zhi-yuan, LI Hua-dong. THE EXPERIMENTAL RESEARCH FOR DESIGN ALLOWABLE OF TENSION STRENGTH OF SW220/430LV COMPOSITE MATERIAL[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(9): 11-16.

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