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物理非线性
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物理非线性
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非线性力学
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physical nonlinearity
物理非线性
在线性理论中采用弹性的本构关系即胡克定律,它仅考虑应力和应变的线性关系,当温度和其他条件变化时只影响线性方程的常系数。弹性本构关系的特点是线性和单值性。而实际上,材料的本构关系应包括应力、应变、应变率、荷载作用时间、温度等因素之间的非线性关系,即物理非线性。
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comparable relation type
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comparative genomic hybridization,CGH
comparative genomics
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