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首页> 外文期刊>International journal of nanomechanics science and technology >THE INFLUENCE OF THE STRAIN RATE ON THE STRENGTH OF THE COATING-SUBSTRATE COMPOSITION. NUMERICAL MODELING
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THE INFLUENCE OF THE STRAIN RATE ON THE STRENGTH OF THE COATING-SUBSTRATE COMPOSITION. NUMERICAL MODELING

机译：应变速率对涂料基体组成强度的影响。数值模拟

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摘要

Mechanisms of strain and fracture of a coated material are investigated at different rates of tension and compression. The dynamic boundary-value problem in the plane-strain formulation is solved numerically by the finite-difference method. In the calculations the microstructure of the composite is specified explicitly. It is found that macroscopic strength of the composite increases exponentially with the strain rate in compression, and changes but only slightly in tension. It is shown that the higher the strain rate, the less intensive is the coating fracture in compression, and the more intensive is the coating fracture in tension.
机译：在不同的拉伸和压缩速率下研究了涂层材料的应变和断裂机理。用有限差分法数值求解了平面应变公式中的动态边值问题。在计算中，明确规定了复合材料的微观结构。发现复合材料的宏观强度随压缩应变率呈指数增加，而随张力变化而变化很小。结果表明，应变率越高，涂层在压缩时的破裂强度越小，而涂层在拉伸时的破裂强度越大。

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