Enhanced oxygen reduction reaction over a high-entropy cobalt-free perovskite with a nominal formula of La _1/6 Pr _1/6 Nd _1/6 Ba _1/6 Sr _1/6 Ca _1/6 FeO _{3− δ} .

This paper presents a method to identify the damages in frame structures with slender beams. This method adjusts the parameters of the structure to match the analytical and the measured displacements. The effect of transverse shear deformation on the nodal analytical displacement is analyzed, and the parameter identification of frame structures with slender beams is performed. The results demonstrate that parameter-identification accuracy can be considerably improved by considering the transverse shear deformation in the frame structure with slender beams. The proposed method can accurately identify the damages in frame structures with slender beams using displacement measurements.