DYNAMIC VERSUS STATIC SHEAR MODULUS FOR DRY SAND

摘要: STATIC INITIAL TANGENT SHEAR MODULI OF CYLINDRICAL SPECIMENS DRY SAND MEASURED BY A SENSITIVE INSTRUMENT FOR AMPLITUDES DEFORMATION 10-3 RADIANS, PEAK TO AT THE ENDS SPECIMENS, CORRESPONDED PUBLISHED DYNAMIC MODULI. FROM THESE RESULTS, IT IS CONCLUDED THAT RATE LOADING HAS NO EFFECT ON MODULUS. PREVIOUSLY REPORTED DIFFERENCES BETWEEN AND VALUES OCCURRED BECAUSE APPARATUS USED TESTS WAS NOT CAPABLE ACCURATE MEASUREMENT SMALL DEFORMATIONS USUAL IN VIBRATION TESTS. /NAPA/