Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
On flexural properties of carbon fiber/epoxy laminates of interlaminar toughened stainless steel particles
| DOI: | 10.11809/bqzbgcxb2023.06.040 |
| Keywords: | laminate; stainless steel particles; interlaminar toughening; three point bending; carbon fiber |
| Abstract: | A kind of carbon fiber/epoxy composite laminates with toughened stainless steel particles are successfully prepared by the wet hand pasting process, in which the metal particles are mixed with the matrix through the fluidity of the matrix during the layering process, and the particles are embedded into the toughened particle thin layer structure of the matrix rich area after curing. Through the three point bending test, it is found that the material has a higher flexural resistance than the non particle toughened laminates do. In addition, the effects of different particle contents on material properties are compared and analyzed. The specimens with a particle content of 0 g/m2, 30 g/m2, 45 g/m2 and 60 g/m2 are respectively tested. The results show that, when the interlayer particle content is 0 g/m2, its flexural strength is 399.7 MPa. After adding a certain amount of stainless steel particles between the layers, the flexural strength increases significantly. The higher the particle content is, the more the strength increases. At a particle content of 30 g/m2, 45 g/m2 and 60 g/m2, the flexural strength reaches 454.9 MPa, 506.1 MPa and 569.6 MPa respectively, which has a linear increase with the particle density. |
| Published: | 2023-06-28 |
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