Table 6.

Height of neutral axis.

Load/kN	60	120	180	210	240	300
Height of neutral axis (JL55-6)/mm	200.37	192.84	190.22	218.19	216.66	209.47
Height of neutral axis (SL55-10)/mm	164.95	160.12	158.85	159.69	169.36	174.79
Maximum compressive stress (JL55-6)/µε	−354.65	−709.32	−1066.99	−1246.94	−1454.41	−2554.96
Maximum compressive stress (SL55-10)/µε	−327.92	−664.78	−1004.58	−1198.64	−1536.12	−1741.26