CAI, Fuhai ;WANG, Xin ;LIU, Jiquan ;ZHAO, Fuling . Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory. Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 60, n.2, p. 135-144, june 2018. ISSN 0039-2480. Available at: <https://www.sv-jme.eu/sl/article/fatigue-life-analysis-of-crane-k-type-welded-joints-based-on-non-linear-cumulative-damage-theory/>. Date accessed: 19 nov. 2024. doi:http://dx.doi.org/10.5545/sv-jme.2013.1368.
Cai, F., Wang, X., Liu, J., & Zhao, F. (2014). Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory. Strojniški vestnik - Journal of Mechanical Engineering, 60(2), 135-144. doi:http://dx.doi.org/10.5545/sv-jme.2013.1368
@article{sv-jmesv-jme.2013.1368,
author = {Fuhai Cai and Xin Wang and Jiquan Liu and Fuling Zhao},
title = {Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory},
journal = {Strojniški vestnik - Journal of Mechanical Engineering},
volume = {60},
number = {2},
year = {2014},
keywords = {Crane;Lattice Boom;K-type Welded Joints;Fatigue Life Evaluation;Non-linear Cumulative Damage Theory},
abstract = {There are large numbers of welds on cranes’ lattice booms. Due to notably complicated force conditions, the fatigue life analysis of the lattice boom is difficult when designing the limit life. The fatigue cycle of the utilization level of a lattice boom crane is in the overlap zone of low-cycle fatigue and high-cycle fatigue. The poor accuracy of measurement of the fatigue life of lattice booms indicates that the calculation dispersion of the linear Palmgren-Miner (PM) rule was high. To obtain real crane stress spectra inexpensively and conveniently, a new stress spectra acquisition method based on the ‘measured & simulated & compared & statistics’ integrated strategy of crane K-type welded joints is proposed. The errors of the maximum stress amplitudes between the measured stress spectra and the simulated stress spectra were less than 10%. The fatigue test results also indicated that errors of the test fatigue life were less than 10% under both the simulated and the measured stress spectra. A new, simplified Huffman non-linear cumulative damage theory is proposed to calculate the fatigue life of crane K-type welded joints based on the notch stress and strain approaches. The calculation results indicated that the accuracy of the non-linear damage accumulation was higher than that of the PM rule, although the calculation result based on the non-linear damage accumulation method was slightly un-conservative when the initial damage was not considered in the calculation. By setting different initial damage conditions, various results were analysed, which revealed that the calculation errors of fatigue life based on the non-linear theory were less than 10% when the initial damage levels were set from 0.02 to 0.04. Such results are appropriate for engineering applications. When the fatigue life calculation needs to be more conservative, the initial damage levels may be set from 0.04 to 0.07; the resulting calculation errors could be less than 25%. As the Huffman non-linear cumulative damage theory requires data from only a few material properties, such as the cyclic stress-strain curve and the constant amplitude strain-life curve, it could therefore be more suitable for engineering applications with higher calculation accuracy and fewer costs.},
issn = {0039-2480}, pages = {135-144}, doi = {10.5545/sv-jme.2013.1368},
url = {https://www.sv-jme.eu/sl/article/fatigue-life-analysis-of-crane-k-type-welded-joints-based-on-non-linear-cumulative-damage-theory/}
}
Cai, F.,Wang, X.,Liu, J.,Zhao, F. 2014 June 60. Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 60:2
%A Cai, Fuhai %A Wang, Xin %A Liu, Jiquan %A Zhao, Fuling %D 2014 %T Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory %B 2014 %9 Crane;Lattice Boom;K-type Welded Joints;Fatigue Life Evaluation;Non-linear Cumulative Damage Theory %! Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory %K Crane;Lattice Boom;K-type Welded Joints;Fatigue Life Evaluation;Non-linear Cumulative Damage Theory %X There are large numbers of welds on cranes’ lattice booms. Due to notably complicated force conditions, the fatigue life analysis of the lattice boom is difficult when designing the limit life. The fatigue cycle of the utilization level of a lattice boom crane is in the overlap zone of low-cycle fatigue and high-cycle fatigue. The poor accuracy of measurement of the fatigue life of lattice booms indicates that the calculation dispersion of the linear Palmgren-Miner (PM) rule was high. To obtain real crane stress spectra inexpensively and conveniently, a new stress spectra acquisition method based on the ‘measured & simulated & compared & statistics’ integrated strategy of crane K-type welded joints is proposed. The errors of the maximum stress amplitudes between the measured stress spectra and the simulated stress spectra were less than 10%. The fatigue test results also indicated that errors of the test fatigue life were less than 10% under both the simulated and the measured stress spectra. A new, simplified Huffman non-linear cumulative damage theory is proposed to calculate the fatigue life of crane K-type welded joints based on the notch stress and strain approaches. The calculation results indicated that the accuracy of the non-linear damage accumulation was higher than that of the PM rule, although the calculation result based on the non-linear damage accumulation method was slightly un-conservative when the initial damage was not considered in the calculation. By setting different initial damage conditions, various results were analysed, which revealed that the calculation errors of fatigue life based on the non-linear theory were less than 10% when the initial damage levels were set from 0.02 to 0.04. Such results are appropriate for engineering applications. When the fatigue life calculation needs to be more conservative, the initial damage levels may be set from 0.04 to 0.07; the resulting calculation errors could be less than 25%. As the Huffman non-linear cumulative damage theory requires data from only a few material properties, such as the cyclic stress-strain curve and the constant amplitude strain-life curve, it could therefore be more suitable for engineering applications with higher calculation accuracy and fewer costs. %U https://www.sv-jme.eu/sl/article/fatigue-life-analysis-of-crane-k-type-welded-joints-based-on-non-linear-cumulative-damage-theory/ %0 Journal Article %R 10.5545/sv-jme.2013.1368 %& 135 %P 10 %J Strojniški vestnik - Journal of Mechanical Engineering %V 60 %N 2 %@ 0039-2480 %8 2018-06-28 %7 2018-06-28
Cai, Fuhai, Xin Wang, Jiquan Liu, & Fuling Zhao. "Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory." Strojniški vestnik - Journal of Mechanical Engineering [Online], 60.2 (2014): 135-144. Web. 19 Nov. 2024
TY - JOUR AU - Cai, Fuhai AU - Wang, Xin AU - Liu, Jiquan AU - Zhao, Fuling PY - 2014 TI - Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory JF - Strojniški vestnik - Journal of Mechanical Engineering DO - 10.5545/sv-jme.2013.1368 KW - Crane;Lattice Boom;K-type Welded Joints;Fatigue Life Evaluation;Non-linear Cumulative Damage Theory N2 - There are large numbers of welds on cranes’ lattice booms. Due to notably complicated force conditions, the fatigue life analysis of the lattice boom is difficult when designing the limit life. The fatigue cycle of the utilization level of a lattice boom crane is in the overlap zone of low-cycle fatigue and high-cycle fatigue. The poor accuracy of measurement of the fatigue life of lattice booms indicates that the calculation dispersion of the linear Palmgren-Miner (PM) rule was high. To obtain real crane stress spectra inexpensively and conveniently, a new stress spectra acquisition method based on the ‘measured & simulated & compared & statistics’ integrated strategy of crane K-type welded joints is proposed. The errors of the maximum stress amplitudes between the measured stress spectra and the simulated stress spectra were less than 10%. The fatigue test results also indicated that errors of the test fatigue life were less than 10% under both the simulated and the measured stress spectra. A new, simplified Huffman non-linear cumulative damage theory is proposed to calculate the fatigue life of crane K-type welded joints based on the notch stress and strain approaches. The calculation results indicated that the accuracy of the non-linear damage accumulation was higher than that of the PM rule, although the calculation result based on the non-linear damage accumulation method was slightly un-conservative when the initial damage was not considered in the calculation. By setting different initial damage conditions, various results were analysed, which revealed that the calculation errors of fatigue life based on the non-linear theory were less than 10% when the initial damage levels were set from 0.02 to 0.04. Such results are appropriate for engineering applications. When the fatigue life calculation needs to be more conservative, the initial damage levels may be set from 0.04 to 0.07; the resulting calculation errors could be less than 25%. As the Huffman non-linear cumulative damage theory requires data from only a few material properties, such as the cyclic stress-strain curve and the constant amplitude strain-life curve, it could therefore be more suitable for engineering applications with higher calculation accuracy and fewer costs. UR - https://www.sv-jme.eu/sl/article/fatigue-life-analysis-of-crane-k-type-welded-joints-based-on-non-linear-cumulative-damage-theory/
@article{{sv-jme}{sv-jme.2013.1368},
author = {Cai, F., Wang, X., Liu, J., Zhao, F.},
title = {Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory},
journal = {Strojniški vestnik - Journal of Mechanical Engineering},
volume = {60},
number = {2},
year = {2014},
doi = {10.5545/sv-jme.2013.1368},
url = {https://www.sv-jme.eu/sl/article/fatigue-life-analysis-of-crane-k-type-welded-joints-based-on-non-linear-cumulative-damage-theory/}
}
TY - JOUR AU - Cai, Fuhai AU - Wang, Xin AU - Liu, Jiquan AU - Zhao, Fuling PY - 2018/06/28 TI - Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory JF - Strojniški vestnik - Journal of Mechanical Engineering; Vol 60, No 2 (2014): Strojniški vestnik - Journal of Mechanical Engineering DO - 10.5545/sv-jme.2013.1368 KW - Crane,Lattice Boom,K-type Welded Joints,Fatigue Life Evaluation,Non-linear Cumulative Damage Theory N2 - There are large numbers of welds on cranes’ lattice booms. Due to notably complicated force conditions, the fatigue life analysis of the lattice boom is difficult when designing the limit life. The fatigue cycle of the utilization level of a lattice boom crane is in the overlap zone of low-cycle fatigue and high-cycle fatigue. The poor accuracy of measurement of the fatigue life of lattice booms indicates that the calculation dispersion of the linear Palmgren-Miner (PM) rule was high. To obtain real crane stress spectra inexpensively and conveniently, a new stress spectra acquisition method based on the ‘measured & simulated & compared & statistics’ integrated strategy of crane K-type welded joints is proposed. The errors of the maximum stress amplitudes between the measured stress spectra and the simulated stress spectra were less than 10%. The fatigue test results also indicated that errors of the test fatigue life were less than 10% under both the simulated and the measured stress spectra. A new, simplified Huffman non-linear cumulative damage theory is proposed to calculate the fatigue life of crane K-type welded joints based on the notch stress and strain approaches. The calculation results indicated that the accuracy of the non-linear damage accumulation was higher than that of the PM rule, although the calculation result based on the non-linear damage accumulation method was slightly un-conservative when the initial damage was not considered in the calculation. By setting different initial damage conditions, various results were analysed, which revealed that the calculation errors of fatigue life based on the non-linear theory were less than 10% when the initial damage levels were set from 0.02 to 0.04. Such results are appropriate for engineering applications. When the fatigue life calculation needs to be more conservative, the initial damage levels may be set from 0.04 to 0.07; the resulting calculation errors could be less than 25%. As the Huffman non-linear cumulative damage theory requires data from only a few material properties, such as the cyclic stress-strain curve and the constant amplitude strain-life curve, it could therefore be more suitable for engineering applications with higher calculation accuracy and fewer costs. UR - https://www.sv-jme.eu/sl/article/fatigue-life-analysis-of-crane-k-type-welded-joints-based-on-non-linear-cumulative-damage-theory/
Cai, Fuhai, Wang, Xin, Liu, Jiquan, AND Zhao, Fuling. "Fatigue Life Analysis of Crane K-Type Welded Joints Based on Non-Linear Cumulative Damage Theory" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 60 Number 2 (28 June 2018)
Strojniški vestnik - Journal of Mechanical Engineering 60(2014)2, 135-144
© The Authors, CC-BY 4.0 Int. Change in copyright policy from 2022, Jan 1st.
There are large numbers of welds on cranes’ lattice booms. Due to notably complicated force conditions, the fatigue life analysis of the lattice boom is difficult when designing the limit life. The fatigue cycle of the utilization level of a lattice boom crane is in the overlap zone of low-cycle fatigue and high-cycle fatigue. The poor accuracy of measurement of the fatigue life of lattice booms indicates that the calculation dispersion of the linear Palmgren-Miner (PM) rule was high. To obtain real crane stress spectra inexpensively and conveniently, a new stress spectra acquisition method based on the ‘measured & simulated & compared & statistics’ integrated strategy of crane K-type welded joints is proposed. The errors of the maximum stress amplitudes between the measured stress spectra and the simulated stress spectra were less than 10%. The fatigue test results also indicated that errors of the test fatigue life were less than 10% under both the simulated and the measured stress spectra. A new, simplified Huffman non-linear cumulative damage theory is proposed to calculate the fatigue life of crane K-type welded joints based on the notch stress and strain approaches. The calculation results indicated that the accuracy of the non-linear damage accumulation was higher than that of the PM rule, although the calculation result based on the non-linear damage accumulation method was slightly un-conservative when the initial damage was not considered in the calculation. By setting different initial damage conditions, various results were analysed, which revealed that the calculation errors of fatigue life based on the non-linear theory were less than 10% when the initial damage levels were set from 0.02 to 0.04. Such results are appropriate for engineering applications. When the fatigue life calculation needs to be more conservative, the initial damage levels may be set from 0.04 to 0.07; the resulting calculation errors could be less than 25%. As the Huffman non-linear cumulative damage theory requires data from only a few material properties, such as the cyclic stress-strain curve and the constant amplitude strain-life curve, it could therefore be more suitable for engineering applications with higher calculation accuracy and fewer costs.