| 含孔玻璃纤维/环氧树脂复合材料-铝合金层板的拉伸损伤行为与热暴露响应 |
| |
| 引用本文： | 谢波涛,高亮,江帅,李梦军.含孔玻璃纤维/环氧树脂复合材料-铝合金层板的拉伸损伤行为与热暴露响应[J].复合材料学报,2020,37(11):2798-2806. |
| |
| 作者姓名： | 谢波涛 高亮 江帅 李梦军 |
| |
| 作者单位： | 长春工业大学 先进结构材料教育部重点实验室，长春 130012 |
| |
| 基金项目： | 国家自然科学基金(11502031)；2019年吉林省预算内基本建设资金(产业技术研究与开发)计划项目(2019C046-6) |
| |
| 摘 要： | 采用试验和数值方法研究了含孔玻璃纤维/环氧树脂(GF/EP)复合材料-铝合金层板在不同热暴露温度下的拉伸剩余强度和损伤失效模式，揭示了层间损伤、纤维损伤及基体损伤的演化过程。结果表明:随着热暴露温度升高，含孔GF/EP复合材料-铝合金层板剩余强度不断下降，拉伸破坏呈现出明显的纤维断裂与层间分层混合失效模式。热暴露温度越高或开孔直径越大，GF/EP复合材料-铝合金层板的层间分层损伤区域越小。随着载荷的增大，沿加载方向的0°纤维和基体的损伤分别呈现出类似“漏斗”形和“花瓣”状的损伤演化形式，而层间损伤区域呈现出一对相对开孔对称的三角形损伤演化形式。基于GF/EP复合材料-铝合金层板的剩余强度和损伤失效模式的数值仿真与试验结果吻合较好。
|
| 关 键 词： | 玻璃纤维/环氧树脂复合材料-铝合金层板 热暴露 拉伸性能 剩余强度 损伤模式 |
| 收稿时间： | 2019-12-27 |
Tensile damage behavior and thermal exposure response of glass fiber/epoxy composite-aluminum alloy laminates with an open-hole |
| |
| Affiliation: | Key Laboratory of Advanced Structural Materials, Ministry of Education, Changchun University of Technology, Changchun 130012, China |
| |
| Abstract: | The tensile residual strength and damage mode of glass fiber/epoxy (GF/EP) composite-aluminum alloy laminates with an open-hole subjected to different thermal exposure temperatures were studied based on experimental and numerical methods, revealing the evolution process of various failure including interlaminar damage, fiber damage and matrix damage. The results show that residual strength of GF/EP composite-aluminum alloy laminates with an open-hole gradually decreases as the thermal exposure temperature increases, followed by a mixed failure mode with fiber fracture and interlaminar delamination. The increasing temperature and open-hole diameter can both lead to a reduction of interlaminar damage area. As the load increases, 0° fiber along the loading direction shows a funnel-shaped damage evolution form, and petal shape for matrix damage. The interlaminar damage presents a pair of symmetrical triangles region with respect to the open-hole. The numerical results show good agreement with test ones based on residual strength and failure mode of GF/EP composite-aluminum alloy laminates. |
| |
| Keywords: | |
|
| 点击此处可从《复合材料学报》浏览原始摘要信息 |
|
点击此处可从《复合材料学报》下载全文 |
