Flexural Response of an Aluminum Foam Core/Stainless Steel Facesheet Sandwich Composite

Flexural properties of lightweight carbon fiber/epoxy resin composite sandwiches with different fiber directions

“…According to Formula (1), the flexural strengths of core material, 0°-CFRP/PMSF, 45°-CFRP/PMSF and 90°-CFRP/PMSF composite sandwiches correspond to ∼6.5 MPa, ∼85 MPa, ∼39 MPa and ∼35.5 MPa respectively. The flexural properties of 0°-CFRP/PMSF composite sandwiches are more excellent than some traditional composite sandwiches reported in other papers [5,13,21], which means that it has a good application prospect. For example, the specific flexural strength (∼74.6 MPa/ g•cm −3 ) of 0°-CFRP/PMSF composite sandwiches is about 5 times that of the aluminum foam sandwich (12-15 MPa/ g•cm −3 ) prepared by Zu et al [5] and 7 times that of aluminum foam core/stainless steel composite sandwiches (∼10.5MPa/g•cm −3 ) prepared by Shunmugasamy et al [13].…”

“…The flexural properties of 0°-CFRP/PMSF composite sandwiches are more excellent than some traditional composite sandwiches reported in other papers [5,13,21], which means that it has a good application prospect. For example, the specific flexural strength (∼74.6 MPa/ g•cm −3 ) of 0°-CFRP/PMSF composite sandwiches is about 5 times that of the aluminum foam sandwich (12-15 MPa/ g•cm −3 ) prepared by Zu et al [5] and 7 times that of aluminum foam core/stainless steel composite sandwiches (∼10.5MPa/g•cm −3 ) prepared by Shunmugasamy et al [13]. For as-prepared composite sandwiches, the flexural strength of 0°-CFRP/PMSF composite sandwiches is higher than that of 45°-CFRP/PMSF and 90°-CFRP/PMSF composite sandwiches.…”

“…The skin materials and core materials play a crucial role in the mechanical properties of the sandwiches. In previous studies, various skin materials and core materials were used to fabricate sandwich panels [6][7][8][9][10][11][12][13][14][15][16][17][18][19]. The skin materials are usually made of relatively high-strength materials, e.g.…”

“…The skin materials are usually made of relatively high-strength materials, e.g. metal [11,13], fiber-reinforced plastic [6,15], ceramic material [10,16], and carbon fiber-reinforced plastics (CFRP) and aluminum sheet are mostly common used [17,18]. The CFRP laminate is lightweight (1.6g/cm 3 ), and it is easy to obtain the required mechanical properties by adjusting the fiber-epoxy layer structure.…”