Energy absorption and residual bending behavior of biocomposites bumper beams Articles uri icon

publication date

  • August 2020

start page

  • 1

end page

  • 7


  • 112343


  • 245

International Standard Serial Number (ISSN)

  • 0263-8223

Electronic International Standard Serial Number (EISSN)

  • 1879-1085


  • This paper presents and analyzes the behavior of bumper beams made of PLA/flax composites subjected to low velocity impacts. The relevance of this material resides in the biodegradability of both fibers and matrix. Moreover, the after-impact behavior of this composite is excellent due to the absence of delamination. Impact tests have been performed using a drop weight tower within the range of impact energies 5... The experimental setup enabled the measuring of impact velocity, residual velocity, load-time history and failure mode. Results show that damage generated during impact produces a significant reduction of residual stiffness but the residual strength is not affected by damage generated in the range of the applied impact energies considered.


  • Mechanical Engineering


  • biocomposite; bumper; energy absorption; natural fibers