A breakaway joint (302) for a boom arm assembly (108, 110) on a work machine (100) is disclosed. The breakaway joint (302), comprising: a first boom segment (202) with a first end (206) and a second end (208) the first boom segment (202) defining a pivot axis (210) at the second end (208); a second boom segment (204) pivotally coupled to the first boom segment (202) at the pivot axis (210); a bracket (306) coupled to the first boom segment (202); a leaf spring (308) coupled to the bracket (306) between the first boom segment (202) and the second boom segment (204); and a cam (316) coupled to the second boom segment (204) and positioned adjacent to the leaf spring (308); wherein, the first boom segment (202) and the second boom segment (204) are pivotally aligned in a neutral position; further wherein, in the neutral position the leaf spring (308) contacts the cam (316) at a first contact force, and in any position other than the neutral position the leaf spring (308) contacts the cam (316) at a contact force
