摘要
基本断裂功 (EWF)是一种新型的高分子材料断裂韧性的评价方法 ,它与通常使用的应力强度因子、应变能量释放速率及J -积分相比 ,具有显著的优点 ,因此逐渐受到高分子材料研究领域的广泛重视。简要介绍了EWF方法的理论背景和计算方法 。
Essential work of facture (EWF)methodology is a new method for assessment of fracture toughness of polymeric materials and is increasingly used since it has many advantages,especially simplicity,compared to the common stress intensity factor,strain energy release rate and J integral.Theoretical background,calculation as well as the factors influencing the EWF parameters,the specific essential work of fracture and the specific non essential work of fracture are introduced.
出处
《中国塑料》
CAS
CSCD
北大核心
2002年第6期1-8,共8页
China Plastics
基金
国家重点基础研究专项经费资助(973项目
G19990 64 80 5 )
关键词
基本断裂功
理论背景
计算方法
影响因素
essential work of fracture
theoretical background
calculation
influencing factor
