Related Experiment Video
Updated: Sep 22, 2025

Generating Lap Joints Via Friction Stir Spot Welding on DP780 Steel
Published on: August 13, 2019
Three-Point Bending Properties of Hybrid Multi-Materials Using Adhesive Bonding Dependent on Strength Difference
Geonwoo Jeon1, Dongwoog Ha1, Yunmin Park1
1Department of Nuclear and Energy System Engineering, Dongguk University, Dongdae-ro 123, Gyeongju-si 38066, Gyeongsangbuk-do, Korea.
Abstract:
The mechanical behaviors of two multi-materials, DP590 (steel sheet)-A356 (cast aluminum alloy) and SS330 (steel sheet)-A5052 (aluminum sheet), were studied. A structural adhesive was used for the joining of steel and aluminum at adhesion strengths of 10, 22, and 30 MPa. To demonstrate that the three-point bending properties depend on the difference in strength between steel and aluminum and adhesion strength, optical microscopy (OM), scanning electron microscopy (SEM), and finite-element analysis (FEA) were performed. According to the results of the bending tests on both multi-materials under the same stacking conditions, the flexural stress increased with the improvement in the adhesion strength until interface separation or aluminum fracture. At the same adhesion strength, the DP590 (lower)-A356 (upper) and SS330 (upper)-A5052 (lower) configurations exhibited a tendency to decrease in the sudden stress drop due to aluminum fracture and interface separation. The bending results were analyzed through the FEA and the stress distribution as a function of the stacking and adhesion strength was confirmed.
More Related Videos
Related Concept Videos
Bending of Members Made of Several Materials
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each...
Bending of Material: Problem Solving
Bending
In pure bending, the bending stress in a beam is calculated based on the bending moment and...
Mechanical Characteristics of Steel
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
Members Made of Elastoplastic Material
As the bending moment...
Temperature Dependent Deformation

