Table 9 Contact region for different types of leaf spring.

Types of leaf spring	Structural steel multi leaf spring		GFRC Both flat leaf spring		GFRC 1st flat leaf and 2nd parabolic leaf spring		GFRC both parabolic leaf spring		GFRC both parabolic leaf spring with aluminium alloy bush
-	Contact region	Real constant set	Contact region	Real constant set	Contact region	Real constant set	Contact region	Real constant set	Contact region	Real constant set
-	1	8–7	1	08–7	1	11–10	1	10–9	1	12–11
-	2	10–9	2	10–9	2	13–12	2	12–11	2	14–13
-	3	12–11	3	12–11	3	15–14	3	14–13	3	16–15
-	4	14–13	4	14–13	4	17–16	4	16–15	4	18–17
-	5	16–15	5	16–15	5	19–18	5	18–17	5	20–19
-	6	18–17	6	18–17	6	21–20	6	20–19	6	22–21
-	7	20–19	7	20–19	7	23–22	7	22–21	7	24–23
-	8	22–21	8	22–21	8	25–24	8	24–23	8	26–25
-	9	24–23	9	24–23	9	27–26	9	26–25	9	28–26
-			10	29–28	10	28–26	10	30–29
-			11	31–30	11	30–29	11	32–31
-			12	33–32	12	32–31	12	34–33
-			13	35–34	13	34–33	13	36–35
-			14	37–36		14	38–37
-			15	39–38		15	40–39
-			16	41–40
Total node	44,428		26,570		57,433		49,292		58,501
Total elements	381,561		16,620		44,057		40,878		48,420

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