This paper reports the modeling method and outcomes of mechanical performance and damage evolution of single-lap bolted composite interference-fit joints under extreme temperatures.The anisotropic continuum damage model involving thermal effects is established on continuum damage mechanics which integrates the shear nonlinearity constitutive relations characterized by Romberg-Osgood equation. The temperature-induced modification of thermal strains and material properties is incorporated in stress-strain analysis, extended 3 D failure criteria and exponential damage evolution rules. The proposed model is calibrated and employed to simulate behavior of composite joints in interference fitting, bolt preloading, thermal and bearing loading processes, during which the influence of interference-fit sizes, preload levels, laminate layups and service temperatures is thoroughly investigated. The predicated interfacial behavior, bearing response and failure modes are in good agreement with experimental tests. The numerical model is even capable of reflecting some non-intuitive experimental findings such as residual stress relaxation and matrix softening at elevated temperatures.
机构:
Xian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R ChinaXian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R China
Yang, Yuan
Zou, Peng
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Aircraft Strength Res Inst China, Full Scale Aircraft Struct Stat Fatigue Lab, Xian 710065, Peoples R ChinaXian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R China
Zou, Peng
Dai, Xilin
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Xian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R ChinaXian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R China
Dai, Xilin
Yang, Bo
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Xian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R ChinaXian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R China
Yang, Bo
Gao, Feng
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Xian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R ChinaXian Univ Technol, Sch Mech & Precis Instrument Engn, Xian, Peoples R China
机构:
Aircraft Strength Res Inst China, 86 Elect Second Rd, Xian 710129, Shaanxi, Peoples R ChinaAircraft Strength Res Inst China, 86 Elect Second Rd, Xian 710129, Shaanxi, Peoples R China
Wei, Jing-chao
Chai, Ya-nan
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Aircraft Strength Res Inst China, 86 Elect Second Rd, Xian 710129, Shaanxi, Peoples R ChinaAircraft Strength Res Inst China, 86 Elect Second Rd, Xian 710129, Shaanxi, Peoples R China
Chai, Ya-nan
Li, Chong
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Aircraft Strength Res Inst China, 86 Elect Second Rd, Xian 710129, Shaanxi, Peoples R ChinaAircraft Strength Res Inst China, 86 Elect Second Rd, Xian 710129, Shaanxi, Peoples R China
Li, Chong
2018 3RD INTERNATIONAL CONFERENCE ON AUTOMATION, MECHANICAL AND ELECTRICAL ENGINEERING (AMEE 2018),
2018,
298
: 76
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80
机构:
Northwestern Polytech Univ, Sch Mech Engn, Xian 710072, Shaanxi, Peoples R ChinaNorthwestern Polytech Univ, Sch Mech Engn, Xian 710072, Shaanxi, Peoples R China
Kang, Yonggang
Kou, Shuaijia
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Northwestern Polytech Univ, Sch Mech Engn, Xian 710072, Shaanxi, Peoples R ChinaNorthwestern Polytech Univ, Sch Mech Engn, Xian 710072, Shaanxi, Peoples R China
Kou, Shuaijia
Meng, Kejuan
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机构:
City Univ Hong Kong, Dept Mech Engn, Hong Kong 999077, Peoples R ChinaNorthwestern Polytech Univ, Sch Mech Engn, Xian 710072, Shaanxi, Peoples R China
Meng, Kejuan
Zhang, Zuowei
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机构:
Northwestern Polytech Univ, Sch Automat, Xian 710072, Shaanxi, Peoples R ChinaNorthwestern Polytech Univ, Sch Mech Engn, Xian 710072, Shaanxi, Peoples R China
Zhang, Zuowei
Wang, Anyang
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Northwestern Polytech Univ, Sch Mech Engn, Xian 710072, Shaanxi, Peoples R ChinaNorthwestern Polytech Univ, Sch Mech Engn, Xian 710072, Shaanxi, Peoples R China