欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
研究了影响复合材料层合板强度尺寸效应的两个主要影响因素：统计尺寸效应和自由边效应。统计尺寸效应采用经典的Weibull最弱环理论描述。提出了＂废宽度＂的概念,将自由边效应和最终失效强度联系起来。综合这两种效应,得到了影响纤维增强复合材料（Fiber reinforced plastic,FRP）宽度尺寸效应的混合模型。引用D Kujawski的试验数据对混合模型进行了验证,结果表明：混合模型能够准确地预测不同宽度试件的最终失效强度。
英文摘要：
The size effect on the strength of fiber reinforced plastic（FRP） composite is investigated. The two main factors, statistical size effect and free-edge effect, are responsible for the size effect in width. Statistical size effect originates from material inherent defects and it is described by the traditional Weibull weakest link theory. Free-edge effect comes into being because of stress singularity at edge and ＂waste width＂ is proposed to link the final failure strength with free-edge effect. Then a mixed model for the size effect in width is constructed by synthesizing the two effects. The experimental data from D Kujawski are employed to verify the proposed model and it is shown that the mixed model can predict the final failure strength of specimens with different widths.
同期刊论文项目
同项目期刊论文
期刊信息
位置：