Optimizing the impact resistance of high tenacity Nylon 66 weft knitted fabrics via genetic algorithm

Semnani, Dariush; Hassani, Farshad; Hadjianfar, Mehdi; Rezazadeh Tehrani, Pedram

doi:10.1186/s40691-016-0065-x

Table 2 The results of mechanical tests

From: Optimizing the impact resistance of high tenacity Nylon 66 weft knitted fabrics via genetic algorithm

Sample code	Tensile strength (N)		Work of rupture (N m)		Impact resistance (KJ)
Sample code	Course direction	Wale direction	Course direction	Wale direction	Impact resistance (KJ)
PSL	54	89	2.23	2.27	4.6
	55	91	2.41	2.7	4.8
	51	90	2.13	2.49	4.7
	56	95	2.52	2.9	5.2
	54	92	2.38	2.79	4.8
Average	54	91.4	2.334	2.63	4.82
SD	1.871	2.302	0.154	0.251	0.228
cv%	3.464	2.519	6.600	9.555	4.731
PSH	66	120	2.9	3.65	7
	72	127	3.16	3.82	7.3
	68	123	3	3.78	7.1
	69	121	3.09	3.7	7.1
	67	122	2.99	3.76	7.1
Average	68.4	122.6	3.028	3.742	7.12
SD	2.302	2.702	0.100	0.067	0.110
cv%	3.366	2.204	3.298	1.797	1.539
RDL	59	261	2.73	7.24	14.2
	57	258	2.56	7.1	14.1
	58	260	2.67	7.18	14.1
	60	272	2.8	7.37	14.8
	56	249	2.41	6.93	13.5
Average	58	260	2.634	7.164	14.14
SD	1.581	8.216	0.153	0.164	0.462
cv%	2.726	3.160	5.811	2.286	3.264
RDH	60	269	2.8	7.33	15.2
	62	274	2.86	7.42	15.6
	59	268	2.73	7.29	14.7
	63	281	2.9	7.73	15.8
	61	271	2.81	7.36	15.3
Average	61	272.6	2.82	7.426	15.32
SD	1.581	5.225	0.064	0.176	0.421
cv%	2.592	1.917	2.284	2.376	2.746
CSL	109	102	3.9	2.94	5.9
	111	106	3.96	2.99	6.1
	115	108	4	3.05	6.2
	120	110	4.2	3.12	6.5
	116	109	4.07	3.09	6.4
Average	114.2	107	4.026	3.038	6.22
SD	4.324	3.162	0.115	0.073	0.239
cv%	3.787	2.955	2.862	2.412	3.838
CSH	113	123	3.99	4.24	7.5
	120	132	4.23	4.31	8.4
	112	119	3.98	4.16	7.3
	118	127	4.1	4.46	8
	115	125	4.01	4.3	7.9
Average	115.6	125.2	4.062	4.294	7.82
SD	3.362	4.817	0.105	0.110	0.432
cv%	2.908	3.847	2.590	2.570	5.530
CDL	109	187	4.78	5.42	9.5
	106	183	4.73	5.39	9
	110	192	4.8	5.52	10.1
	112	195	4.86	5.6	10.8
	108	191	4.79	5.49	9.8
Average	109	189.6	4.792	5.484	9.84
SD	2.236	4.669	0.047	0.083	0.673
cv%	2.051	2.463	0.972	1.518	6.840
CDH	127	206	6.19	6.24	13.6
	124	201	6.08	6	13.3
	128	215	6.22	6.39	13.8
	132	220	6.32	6.61	14.1
	126	212	6.11	6.35	13.5
Average	127.4	210.8	6.184	6.318	13.66
SD	2.966	7.463	0.095	0.223	0.305
cv%	2.328	3.540	1.537	3.528	2.232

Back to article page