2124鋁合金切口強(qiáng)度及其定量評估
發(fā)布時間:2018-08-20 07:54
【摘要】:研究了不同時效熱處理狀態(tài)下2124鋁合金的拉伸性能和不同應(yīng)力集中系數(shù)下的的切口強(qiáng)度。結(jié)果表明:隨著應(yīng)力集中系數(shù)的增加,切口強(qiáng)度先增加后降低,直至趨于斷裂強(qiáng)度;2124鋁合金屬于切口不敏感材料,切口強(qiáng)度高于抗拉強(qiáng)度;切口強(qiáng)度與抗拉強(qiáng)度相比數(shù)據(jù)離散性大。針對2124鋁合金切口件的斷裂準(zhǔn)則,在Zheng切口強(qiáng)度估算模型的基礎(chǔ)上,獲得了使用拉伸性能估算切口強(qiáng)度的新模型。
[Abstract]:The tensile properties of 2124 aluminum alloy under different aging heat treatment conditions and the notch strength under different stress concentration factors were studied. The results show that the notch strength first increases and then decreases with the increase of the stress concentration factor, until the fracture strength of aluminum alloy < 2124 belongs to the notch insensitive material, and the notch strength is higher than the tensile strength. The data dispersion of notch strength and tensile strength is larger than that of tensile strength. According to the fracture criterion of 2124 aluminum alloy notches, based on the Zheng notch strength estimation model, a new model using tensile properties to estimate notch strength is obtained.
【作者單位】: 西北工業(yè)大學(xué)材料學(xué)院;中航工業(yè)第一飛機(jī)設(shè)計研究院;中航工業(yè)成都飛機(jī)工業(yè)集團(tuán)公司;
【分類號】:TG146.21
本文編號:2192938
[Abstract]:The tensile properties of 2124 aluminum alloy under different aging heat treatment conditions and the notch strength under different stress concentration factors were studied. The results show that the notch strength first increases and then decreases with the increase of the stress concentration factor, until the fracture strength of aluminum alloy < 2124 belongs to the notch insensitive material, and the notch strength is higher than the tensile strength. The data dispersion of notch strength and tensile strength is larger than that of tensile strength. According to the fracture criterion of 2124 aluminum alloy notches, based on the Zheng notch strength estimation model, a new model using tensile properties to estimate notch strength is obtained.
【作者單位】: 西北工業(yè)大學(xué)材料學(xué)院;中航工業(yè)第一飛機(jī)設(shè)計研究院;中航工業(yè)成都飛機(jī)工業(yè)集團(tuán)公司;
【分類號】:TG146.21
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