| 粉煤灰空心球/Al复合泡沫材料准静态力学性能及本构模型 |
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| 引用本文： | 张博一,高金涛,王理,张箭,王伟,武高辉. 粉煤灰空心球/Al复合泡沫材料准静态力学性能及本构模型[J]. 复合材料学报, 2021, 38(8): 2655-2665. DOI: 10.13801/j.cnki.fhclxb.20201116.003 |
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| 作者姓名： | 张博一 高金涛 王理 张箭 王伟 武高辉 |
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| 作者单位： | 哈尔滨工业大学 结构工程灾变与控制教育部重点实验室,哈尔滨150090;哈尔滨工业大学 土木工程学院,哈尔滨150090;哈尔滨工业大学 金属基复合材料与工程研究所,哈尔滨150001 |
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| 基金项目： | 国家自然科学基金(51578201;51778196) |
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| 摘 要： | 为研究粉煤灰空心球/Al(Fly ash cenosphere/aluminum syntactic foam,FAC/Al)复合泡沫材料静力性能,采用万能试验机对铝基复合泡沫材料进行了准静态轴向压缩性能试验,考察了不同空心球平均粒径(分别为150、200和300μm)对铝基复合泡沫材料变形失效模式及力学性能的影响,并...
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| 关 键 词： | 铝基复合泡沫 准静态压缩 应力-应变曲线 吸能性能 本构方程 |
| 收稿时间： | 2020-09-04 |
Quasi-static mechanical properties and constitutive model of fly ash cenosphere/aluminum syntactic foam |
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| Affiliation: | 1.Key Lab of Structure Behavior and Control of China Ministry of Education, Harbin Institute of Technology, Harbin 150090, China2.School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China3.Center for Metal Matrix Composite Engineering Technology, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | In order to study the quasi-static performance of fly ash cenosphere/aluminum (FAC/Al) syntactic foam, quasi-static compression performance tests were conducted on the FAC/Al specimens by using a universal testing machine. The effects of different average particle sizes on the deformation and failure modes and mechanical performance of the aluminum matrix composite foam material specimens were investigated, and the stress-strain curves of the material specimens with different particle sizes under quasi-static load were obtained. And based on the stress-strain curves, the effects of particle sizes on the energy absorption performance of the material were analyzed. And the test results show that the compressive yield strength and energy absorption capacity and the ideal absorption efficiency of the material decrease with the increase of the particle sizes. In addition, by using the least square method to fit based on the stress-strain curves, the constitutive equation of FAC/Al under quasi-static load was given and verified, and the results show that the equation has a good fitting. |
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