Bending performance of wood-aluminum composites: prediction and analysis

Abstract

To research bending behavior of wood-aluminum composites (WAC)and the effect of stacking sequences, orient strand boards (OSB) were laminated with aluminum alloy sheets by different stacking sequencesto manufacture WACs. Then, the bending modulus of elasticity (MOE) and bearing capacity of the WAC were determined using a three-point bending test. Next, a prediction model was established from classical laminated plate theory and validated based on the effect of the glue line. Experimental results indicated that WAC with the structure locating the aluminum alloy sheeton the surface showed the best bending performance. The peak load of WAC, which composite the aluminum alloy sheeton the surface, was 2-fold greater than OSB. In contrast with OSB, the bending MOE for the aluminum alloy sheeton the surface increased 156.55% along the parallel and 192.79% along the perpendicular. The model based on classical laminated plate theory was precise enough to aim at a theoretical MOE with relative error of less than 10%.