Volume 31 Issue 11
Nov.  2016
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JIA Deng, ZHENG Jian, CHEN Xiong, YU Jia-quan. Temperature dependent adhesive interfacial mechanical properties of EPDM film[J]. Journal of Aerospace Power, 2016, 31(11): 2809-2816. doi: 10.13224/j.cnki.jasp.2016.11.032
Citation: JIA Deng, ZHENG Jian, CHEN Xiong, YU Jia-quan. Temperature dependent adhesive interfacial mechanical properties of EPDM film[J]. Journal of Aerospace Power, 2016, 31(11): 2809-2816. doi: 10.13224/j.cnki.jasp.2016.11.032

Temperature dependent adhesive interfacial mechanical properties of EPDM film

doi: 10.13224/j.cnki.jasp.2016.11.032
  • Received Date: 2015-02-28
  • Publish Date: 2016-11-28
  • The double cantilever sandwich beam(DCSB) specimen was used to study the temperature-dependent mode I fracture behavior of the interface between the ethylene propylene diene monomer(EPDM) films, the mode I fracture energy was determined by the linear elastic fracture mechanics(LEFM) method, then used simultaneously with the cohesive strength, which was obtained by uniaxial tension test as the parameter of a bilinear cohesive zone model(CZM) to simulate the fracture behavior of the DCSB specimen under different temperatures. Results showed that, there existed a large deviation between the test and simulation results, because the fracture energy determined by the uncorrected LEFM was not accurate. At last, by the means of adjusting the parameters of the CZM to make the simulation curves match the test curves better, the accurate mechanical property parameters were obtained, and the simulation result using these accurate properties matched well with test curve, proving the usability of this model to the fracture of the interface.

     

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