焊缝设计.pdf

Weld Design(2) Leslie Li Strength Of Weld SERVICES GLOBAL TEAM INSOURCING PROCESS EXPERIENCE SERVICES PHILOSOPHY 焊缝的强度取决于ØFBM ABM和ØFW AW二者中的小值。 FBM ：母材的名义强度，ksi ； FW ：焊条的名义强度，ksi ； ABM : 母材的截面面积，in2 ； 2 AW ：焊缝的有效截面积，in 。(具体参照上节课焊缝构造的内容) Ø：分项系数。 Design Strength Of Weld SERVICES GLOBAL TEAM INSOURCING PROCESS EXPERIENCE PHILOSOPHY Electrode Strength SERVICES GLOBAL TEAM INSOURCING PROCESS EXPERIENCE PHILOSOPHY Electrode Strength Coefficient C1 Electrode FEXX ( ksi ) C1 E60 60 0.857 E70 70 1.00 E80 80 1.03 E90 90 1.16 E100 100 1.21 E110 110 1.34 Electrode Choose SERVICES GLOBAL TEAM INSOURCING PROCESS EXPERIENCE PHILOSOPHY Electrode Choose SERVICES GLOBAL TEAM INSOURCING PROCESS EXPERIENCE PHILOSOPHY Strength Of Single Weld SERVICES GLOBAL TEAM INSOURCING PROCESS EXPERIENCE PHILOSOPHY 母材：ØFBM *ABM 焊缝：Ø （0.60FEXX ）* AW Why 0.6 ? SERVICES GLOBAL TEAM INSOURCING PROCESS EXPERIENCE PHILOSOPHY From Von Mises Criterion 2 2 2 2 σ – σσ + σ ≤σ 1 1 2 2 y 摩尔应力圆 2 2 2 2 →σ + σ + σ ≤σ y σ= τ 1 →σ≤ * σy 1