Wire Ropes Under Tensile Load - Wire Ropes: Tension, Endurance, Reliability - page 87

C for calculating the elasticity module in N/mm 2 Table 2.1 Constants A, B and of round stranded ropes, Feyrer and Jahne ( 1990 )

Rope condition Core Coefficient of

determination
Standard deviation

Constant A Constant C Constant B

6-strand wire layers 8-strand wire layers

1 2 3 1 2 3

New up NFC 64 % 161 -10,700,000 118,000 102,000 101,000 116,000 100,000 99,000

SFC 14,000 112,000 96,000 95,000 110,000 94,000 93,000

IWRC 75 % 81 -5,140,000 120,000 105,000 104,000 103,000 88,000 87,000

PWRC 13,000 137,000 122,000 121,000 120,000 105,000 104,000

ESWRC 126,000 111,000 110,000 109,000 94,000 93,000

EFWRC 108,000 93,000 92,000 91,000 76,000 75,000

Ten times loaded up NFC 82% 161 -14,400,000 152,000 141,000 138,000 149,000 138,000 135,000

SFC 11,000 141,000 130,000 127,000 138,000 127,000 124,000

IWRC 89% 131 -12,500,000 160,000 149,000 147,000 149,000 138,000 136,000

PWRC 10,000 163,000 152,000 150,000 152,000 141,000 139,000

ESWRC 156,000 145,000 143,000 145,000 134,000 132,000

EFWRC 145,000 134,000 132,000 134,000 123,000 121,000

Ten times loaded down NFC 89 % 192 -25,500,000 177,000 166,000 163,000 174,000 163,000 160,000

SFC 11,000 166,000 155,000 152,000 163,000 152,000 149,000

IWRC 91 % 167 -20,500,000 177,000 166,000 164,000 166,000 155,000 153,000

PWRC 10,000 180,000 169,000 167,000 169,000 158,000 156,000

ESWRC 173,000 162,000 160,000 162,000 151,000 149,000

EFWRC 162,000 151,000 149,000 151,000 140,000 138,000