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ZHANG Jia-lei, TAN Fu-li, WANG Wei-ping. Influence of beam intensity distribution on the thermal and mechanical behavior of cylindrical shells under laser irradiation[J]. LASER TECHNOLOGY, 2010, 34(5): 697-700. DOI: 10.3969/j.issn.1001-3806.2010.O5.033
Citation: ZHANG Jia-lei, TAN Fu-li, WANG Wei-ping. Influence of beam intensity distribution on the thermal and mechanical behavior of cylindrical shells under laser irradiation[J]. LASER TECHNOLOGY, 2010, 34(5): 697-700. DOI: 10.3969/j.issn.1001-3806.2010.O5.033

Influence of beam intensity distribution on the thermal and mechanical behavior of cylindrical shells under laser irradiation

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  • Received Date: September 29, 2009
  • Revised Date: February 20, 2010
  • Published Date: September 24, 2010
  • The research of the failure mechanism of load-carrying construction under high-power laser irradiation can expand the field of laser application.In order to investigate the influence of beam intensity distribution on the thermal-mechanical behavior of cylindrical shells under laser irradiation, firstly the thermal-mechanical model of the cylindrical shell was constructed by means of finite element method. Taking total laser power equal, several typical distributions were analyzed and compared. Then thermal-mechanical response of the internal pressured cylindrical shell under different laser irradiation was studied. Numerical results indicate that intensity distribution has a significant effect on temperature, stress and displacement fields of cylindrical shell. The cylindrical shells irradiated by laser beams with different intensity have different failure mode and failure time.
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