Size effect on tensile strength of parallel CFRP wire stay cable

Probabilistic model for length effect on fatigue life of longitudinal elements

“…The yarn suffers the drawing process during the production, which stabilizes the molecular structure and strengthens the yarn by improving the molecular orientation . This phenomenon indicates that in tests of the yarn may have undergone something like “proof testing.” Another possible reason is the intermittent presence of a competing flaw population …”

“…Another possible reason is the intermittent presence of a competing flaw population. 7 Once the parameters are estimated, Equation 28 can be transformed to a standard 2-parameter Weibull distribution with the specified normalized length b L i . With the exception of the normalized length b L ¼ 90, the results that the corresponding scale and shape parameters of the specified length b L i can be accepted by the KS test at the 5% significance level.…”

“…In this paper, an asymptotic weakest‐link phenomenological Weibull model proposed for modelling tensile strength in parallel carbon fiber reinforced polymer (CFRP) wire cables is extended to study the length effects on fatigue life of longitudinal elements; particular focus is placed on steel wires of typical lengths found in stay cables. The structure of this paper is as follows: An asymptotic weakest‐link Weibull model is established to evaluate length effects on fatigue life of longitudinal element in Section 2.…”