Variability of Dynamic Properties of Rubber Compounds for Elastomeric Bearings

Table 2

λ-factors for LDRs from experimental data, material test limits (bracketed), and annex J of [3].

		Experimental data and (EN 15129 §8.2.2.1)		EN 15129 annex J
		G		G
		LB	UB
Temperature	50°C	0.93 (0.80)	—	—
	40°C	0.98 (0.80)	—	—
	0°C	—	1.05	1.15
	−10°C	—	1.11	1.18
	−20°C	—	1.22	—
	−30°C	—	1.35 (1.80)	1.35
Ageing		1.00	1.14 (1.20)	1.20
Frequency		1.00 (0.80)	1.06 (1.20)	—
Repeated cycles		0.95 (0.80)	1.11 (1.35)	—
Production variability		0.95 (0.80)	1.07 (1.20)	—

Values calibrated from data and in compliance with EN 15129 prescriptions.