Compared with mechanical fastening, adhesive bonding offers numerous advantages in the joining of pultruded glass fiber reinforced polymer (GFRP) sections. However, one critical issue associated bonded joints is assessment their behavior considering bondline defects. This paper presents results an experimental investigation damage tolerance adhesively GFRP Double-strap specimens and without def...

The tension-tension fatigue behavior of ductile adhesively-bonded double-lap FRP joints was experimentally investigated. An acrylic adhesive, which in the rubbery state at ambient temperature, provided joint ductility. degradation characterized by cyclic energy dissipation, stiffness, creep displacement and self-generated temperature. effects elevated temperature on joints’ static tensile pure ...

In this paper, considering an adhesively bonded composite single-lap joint, a novel approach is presented to predict the peel and shear stress distributions of the adhesive layer for an ASTM standard test sample. In current method, the equilibrium equations are derived using the energy method and based on the Timoshenko’s beam theory. Two solution procedures then are discussed, one of which rep...

Cohesive Modeling of the Deformation and Fracture of Weldbonded Joints M. N. Cavalli, M.D. Thouless and Q.D. Yang Mechanical Engineering Department Materials Science and Engineering Department University of Michigan Ann Arbor, MI Rockwell Scientific Company Thousand Oaks, CA Abstract In previous work, cohesive-zone models have been developed separately for the analysis of adhesively-bonded join...

This work is the first systematic study on static behavior of adhesively-bonded Fe-SMA-to-steel joints in applications adopting iron-based Shape Memory Alloys (SMAs). In order to provide a better understanding mechanical adhesively bonded joint, an experimental campaign was established, involving 24 lap-shear tests displacement-controlled loading regime. The test series includes two types Fe-SM...

In this presentation, the structural performance of fiber reinforced composite laminate Pi joints is studied through a progressive failure analysis (PFA) method. The bonded joint area that is the weakest link of the Pi joint structure is modeled using the discrete cohesive zone method (DCZM). The damage growth and failure of the bonded interface is modeled through an exponential decaying tracti...