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author:

王伟 (王伟.) [1] | 邹先平 (邹先平.) [2]

Indexed by:

CQVIP PKU CSCD

Abstract:

针对基于能量准则的板翅式换热器封头强度设计问题,给出了比率塑性功曲率(Ratio Plastic WorkCurvature,RPWC)准则塑性载荷和塑性功曲率(Plastic Work Curvature,PWC)准则塑性载荷确定方法。两种准则的封头塑性压力结果一致表明大变形效应对封头结构有强化效果。5种接管开孔率的塑性压力比较结果表明,PWC塑性压力最大,RPWC塑性压力其次,PWC工程塑性压力最小,RPWC塑性压力对应的比率塑性功小于PWC零曲率塑性载荷对应的比率塑性功。RPWC准则相对PWC零曲率准则临界塑性指标更严格,具有偏安全、简便直观的特点,适合板翅式换热器封头这类复杂结构的塑性压力计算,而PWC工程塑性载荷可用于工程设计载荷的保守估计。

Keyword:

分析设计 塑性载荷 弹塑性分析 比率塑性功曲率 能量准则

Community:

  • [ 1 ] 福州大学机械工程及自动化学院,福州350108

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Source :

工程力学

ISSN: 1000-4750

Year: 2013

Issue: 5

Volume: 30

Page: 329-334

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 4

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