Higher order adhesive effects in composite beams

Composite adhesive bonded joints are widely used in various industrial and technological applications, including aerospace, electronics, biomedical, automotive, ship building construction. In this paper, the attention is focused on layered structures consisting of two adherent beams together by an layer. For such structures, a modeling approach based classical Timoshenko beam theory conjunction with model imperfect interface introduced. This approach, recently proposed authors contest linear elastic adherents materials, small strains displacements theory, models asymptotic behavior thin interphase at higher orders for both cases hard soft materials unified (Rizzoni et al., 2014). Accounting order terms expansions adhesive, generalizes simpler spring-type law or case perfect contact between layers. The methodology to evaluate stresses joint configurations subjected bending moment transverse shear loading. Numerical simulations produced results show good agreements those obtained through finite element analysis.