Based on the micro mechanical feature of materials and the strength theory of fibrous bunchiness, the macro statistical size effect of materials was gained.
从材料的微观力学性质入手，用纤维束强度理论，得到了材料的宏观统计力学效应。
With the downsizing of solder joints in microelectronic packaging, size effect in micro-joining plays an more important role in the constitutive equation of the solder joints.
随着微电子封装焊点尺寸的微型化，微连接尺寸效应对焊点的本构方程产生不可忽视的影响。
An assumed strain finite element method based on the theory of strain gradient was proposed to explore the size effect that frequently exhibited in micro-beam bending.
采用基于应变梯度理论的假设应变有限元方法研究了微尺度梁弯曲的尺寸效应。
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