Prediction of Fatigue Life for a New 2-DOF Compliant Mechanism by Clustering-Based ANFIS Approach

Table 1

Physical properties and chemical components of steel A-36 and Al 6061-T6 (http://asm.matweb.com/search/SpecificMaterial.asp?bassnum=MA6061T6).

Physical properties	Steel A-36	Al 6061-T6
Density (kg/m^3)	7850	2700
Young’s modulus (MPa)	200000	68900
Poisson’s ratio	0.32	0.33
Yield strength (MPa)	250	276
Tensile ultimate strength (MPa)	550	310
Chemical components	(Wt.%)	(Wt.%)
	Carbon, C: 0.29	Aluminum, Al: 95.8–98.6
	Iron, Fe: 98	Chromium, Cr: 0.04–0.35
	Manganese, Mn: 0.8–1.2	Copper, Cu: 0.15–0.40
	Phosphorous, P: 0.04	Iron, Fe: ≤ 0.70
	Silicon, Si: 0.15–0.4	Magnesium, Mg: 0.80–1.2
	Sulfur, S: 0.05	Manganese, Mn: ≤ 0.15
		Silicon, Si: 0.40–0.80
		Titanium, Ti: ≤ 0.15
		Zinc, Zn: ≤ 0.25