[23p-B202-1~6] 1.5 Instrumentation, measurement and Metrology

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[23p-B202-1] Strain rate dependence of tensile strength in wide range of epoxy cured adhesives

〇Keiji Houjou¹, Akiyama Haruhisa¹ (1.AIST)

Keywords:

Strain rate,Epoxy polymer,Tensile strngth

Dumbbell-shaped bulk specimens were prepared with epoxy adhesives to investigate the strain rate dependence of mechanical properties. Yield stress, Young's modulus, elongation, and tensile strength were measured by varying the tensile rate of the test machine from 5.2 x 10-5 to 1.2 x 10 6 mm/min. Yield stress and tensile strength showed a clear dependence on strain rate. As a result, a procedure for predicting creep strength and even impact strength from simple tensile test results was proposed.