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An Application of the Modified Shear Lag Model to Study the Influence of Thermal Residual Stresses on the Stiffness and Yield Strength of Short Fiber Reinforced Metal Matrix Composites 被引量:1
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作者 Zhonghao JIANG and Jianshe LIAN(Dept. of Materials Science and Engineering, Jilin University of Technology, Changchun 130025, China)Shangli DONG and Dezhuang YANG(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 1999年第3期213-221,共9页
The modified shear lag model proposed recently was applied to calculate thermal residual stresses and subsequent stress distributions under tensile and compressive loadings. The expressions for the elastic moduli and ... The modified shear lag model proposed recently was applied to calculate thermal residual stresses and subsequent stress distributions under tensile and compressive loadings. The expressions for the elastic moduli and the yield strengths under tensile and compressive loadings were derived which take account of thermal residual stresses. The asymmetries in the elastic modulus and the yield strength were interpreted using the derived expressions and the obtained results of the stress calculations. The model predictions have exhibited good agreements with the experimental results and also with the other theoretical predictions 展开更多
关键词 ab Figure An Application of the Modified shear Lag Model to Study the Influence of thermal residual stresses on the Stiffness and Yield Strength of short Fiber reinforced Metal Matrix composites
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短纤维增强复合材料纤维和界面层残余热应力分析
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作者 苏继龙 郑书河 《沈阳航空工业学院学报》 2005年第1期22-26,共5页
基于应力传递的剪滞理论,详细分析推导了纤维中的残余热正应力和界面层中的剪应力解析公式,并与已有的理论公式进行了比较。同时分析了纤维与基体脱粘的原因及热残余应力主要影响因素,主要包括:纤维和界面层材料的弹性模量,界面层的厚... 基于应力传递的剪滞理论,详细分析推导了纤维中的残余热正应力和界面层中的剪应力解析公式,并与已有的理论公式进行了比较。同时分析了纤维与基体脱粘的原因及热残余应力主要影响因素,主要包括:纤维和界面层材料的弹性模量,界面层的厚度以及纤维的长径比等。通过分析得出:纤维中的压应力和界面层中的剪应力都随着界面层的厚度及其弹性模量的增大而增大;纤维长径比的大小对纤维中的压应力和界面层中的剪应力大小及分布的影响很小。 展开更多
关键词 短纤维增强复合材料 残余热应力 界面剪应力
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