| 标题 |
 Thermodynamic and Molecular Origins of Crack Resistance in Polymer Networks 相关领域
韧性
弹性体
变形（气象学）
聚合物
断裂力学
磁滞
化学
复合材料
压力（语言学）
断裂韧性
裂缝闭合
裂纹扩展阻力曲线
消散
收缩率
理想（伦理）
基础（证据）
机械
内能
材料科学
化学物理
蠕动
可塑性
分子动力学
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| 其它 | 英文摘要：A material tears, peels, and breaks by growing a crack. In a zone around the crack front, atoms undergo an irreversible process of breakingand possibly reformingbonds. Trailing behind the crack front are two layers of scars. Outside the irreversible zone and scars, atoms undergo the reversible process of elasticity. The irreversible zone is considered localized if it is small relative to the body. The idealization of localized irreversibility leads to a thermodynamic framework centered on the energy release rate. This crack driving force is defined using an ideal body in which a crack is stationary and deformation is elastic, and is applied to a real body in which a crack grows by an irreversible process. |
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