| 金属基复合材料的蠕变与松弛 |
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| 引用本文： | 杨庆生,陈浩然.金属基复合材料的蠕变与松弛[J].计算力学学报,1992,9(4). |
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| 作者姓名： | 杨庆生 陈浩然 |
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| 作者单位： | 大连理工大学工程力学研究所 116023
(杨庆生)，大连理工大学工程力学研究所 116023(陈浩然) |
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| 摘 要： | 本文利用微观力学方法研究了金属基复合材料的常温蠕变和应力松弛,连续纤维在弹性粘塑性基体内单向铺设。本文的结果与实验结果符合较好。研究表明,纤维在轴向对基体的蠕变起到明显阻止作用,而在横向和剪切变形下的作用较小。在低应力水平下,复合材料的蠕变变形很小,在高应力水平时,蠕变变形明显甚至引起蠕变破坏。
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| 关 键 词： | 复合材料 金属基 蠕变 松弛 微观力学 |
Creep and Relaxation for Metal-Matrix Composites |
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| Yang qingsheng,Chen Haoran.Creep and Relaxation for Metal-Matrix Composites[J].Chinese Journal of Computational Mechanics,1992,9(4). |
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| Authors: | Yang qingsheng Chen Haoran |
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| Abstract: | A micromechanical method was used to study the room temperature creep and stress relaxation for metal-matrix composites which the continuous elastic fiber distributed in the elastic-viscoplastic matrix. Present results agree well with the experimental ones. It is shown that the fiber can considerably resist the matrix creep along the axial direction, but not so for transversely and shear deformation. The creep deformation is related to applied stress level and fiber volume fraction. |
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| Keywords: | composite metal-matrix creep relaxation micromechanics |
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