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厚壁梁由于表面冷却引起的自约束应力分析
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科技导报 | 研究论文 2007,25(0707): 36-38
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厚壁梁由于表面冷却引起的自约束应力分析
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王嘉航
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    苏州科技学院土木工程系 江苏苏州
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王嘉航
Constraint Stress in Thick Beam due to Surface Cooling
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    出版时间: 2007-04-10
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    假定厚壁梁的降温曲线为某种指数函数,推导出其自约束应力的计算公式,通过工程实例进行验算,表明本文的假定也比较符合实际情况。
    自约束应力  /  指数函数  /  裂缝
    In the analysis, it is assumed that the distribution of temperature in the thick beam is expressed by an exponential function. The expressions of constraint stress are obtained for practical engineering cases. It is shown that the results are reasonable.
    王嘉航. 厚壁梁由于表面冷却引起的自约束应力分析. 科技导报, 2007 , 25 (0707) : 36 -38 .
    . Constraint Stress in Thick Beam due to Surface Cooling[J]. Science & Technology Review, 2007 , 25 (0707) : 36 -38 .

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    • 首发时间:2007-04-10
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    2种不同金属材料的力学参数

    Family
    属数
    Number of
    genus
    种数
    Number of
    species
    占总种数比例
    Percentage of
    total species (%)

    Genus
    种数
    Number of
    species
    占总种数比例
    Percentage of total
    species (%)
    鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
    小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
    多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
    红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
    小菇属 Mycena 11 5.26
    光柄菇属 Pluteus 5 2.39
    红菇属 Russula 17 8.13
    栓菌属 Trametes 5 2.39
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