Calculate contact radius a = (3FR/(4E*))^(1/3) and maximum pressure p_0 = 3F/(2πa²) for sphere-on-flat contact. Compute reduced modulus 1/E* = (1−ν_1²)/E_1 + (1−ν_2²)/E_2.
2D stress state at a point. All stresses in MPa.
Enter the values for the patient or scenario you are assessing. Calculate contact radius a = (3FR/(4E*))^(1/3) and maximum pressure p_0 = 3F/(2πa²) for sphere-on-flat contact. Compute reduced modulus 1/E* = (1−ν_1²)/E_1 + (1−ν_2²)/E_2. Use the hertz contact stress result to inform your clinical assessment.