Raw time series of impact measurements for materials and manual impact hammer tips as labeled. Displacements and velocities are stored as 'H11' (driving-point responses) and 'H21' (opposing side), where responses have the shape [time points, quantity, impact number] and first quantity = displacements, second quantity = velocities. Accelerations are stored in 'acc', with the shape [time points, dof, impact number], where dof = [S1_X, S1_Y, S1_Z, S2_X, S2_Y, S2_Z] with S1 on driving point side and S2 opposite, x and y responses unused and not included.     «

Raw time series of impact measurements for materials and manual impact hammer tips as labeled. Displacements and velocities are stored as 'H11' (driving-point responses) and 'H21' (opposing side), where responses have the shape [time points, quantity, impact number] and first quantity = displacements, second quantity = velocities. Accelerations are stored in 'acc', with the shape [time points, dof, impact number], where dof = [S1_X, S1_Y, S1_Z, S2_X, S2_Y, S2_Z] with S1 on driving point side and...     »