Single-layer multi-strand cable having improved energy at break and an improved total elongation

A multi-strand cord (50) having a 1×N structure comprising a single layer (52) of N strands (54) wound in a helix about a main axis (A), each strand (54) having one layer (56) of metal filaments (F1) and comprising M>1 metal filaments wound in a helix about an axis (B),

• wherein the cord (50) has a total elongation At>8.10% determined by the standard ASTM D2969-04 of 2014, and
• wherein an energy-at-break indicator Er of the cord (50), defined by Er=∫0Atσ(Ai)×dAi, where σ(Ai) is a tensile stress in MPa measured at an elongation Ai and dAi is an elongation such that Er is strictly greater than 52 MJ/m3.

A cord (50′) extracted from a polymer matrix, the extracted cord (50′) having a 1×N structure comprising a single layer (52) of N strands (54) wound in a helix about a main axis (A), each strand (54) having one layer (56) of metal filaments (F1) and comprising M>1 metal filaments wound in a helix about an axis (B),

• wherein the extracted cord (50′) has a total elongation At′≥5.00% determined by the standard ASTM D2969-04 of 2014, and
• wherein an energy-at-break indicator Er′ of the extracted cord (50′), defined by Er′=∫0At′σ(Ai)×dAi , where σ(Ai) is a tensile stress in MPa measured at an elongation Ai and dAi is an elongation such that Er′ is strictly greater than 35 MJ/m3.