Young's modulus and poisson's ratio determination in objects of arbitrary geometry systems and methods

A method of determining Young's modulus and Poisson's ratio of an object, the method comprising:

• collecting a measured vibrational response spectrum of the object;
• comparing the measured vibrational response spectrum with a simulated vibrational response spectrum;
• and
• identifying a Young's modulus and a Poisson's ratio that minimize a mismatch between the simulated vibrational response spectrum and the measured vibrational response spectrum.

A system comprising:

• a non-transitory memory storing instructions;
• and
• one or more hardware processors configured to execute the instructions that causes the system to perform operations comprising:
• collecting a measured vibrational response spectrum of an object;
• generating a simulated vibrational response spectrum of that object;
• and
• minimizing a mismatch between the simulated vibrational response spectrum and the measured vibrational response spectrum by simultaneously optimizing both a Young's modulus and a Poisson's ratio using a nonlinear global optimization.