高分子材料科学与工程
高分子材料科學與工程
고분자재료과학여공정
POLYMER MATERIALS SCIENCE & ENGINEERING
2001年
2期
1-4
,共4页
环氧树脂%橡胶增韧%增韧机理模型
環氧樹脂%橡膠增韌%增韌機理模型
배양수지%상효증인%증인궤리모형
对橡胶增韧环氧树脂的增韧机理模型进行了 回顾。其主要增韧机理为局部剪切屈服、孔洞或空穴的塑性体积膨胀和橡胶颗粒桥联。在细 观结构上采用典型轴对称单元的有限元分析来预测增韧环氧树脂的力学行为。断裂力学的J 积分模型可用于估算增韧程度,基于断裂韧性GIC的增韧模型定量分析已取得一定进展。
對橡膠增韌環氧樹脂的增韌機理模型進行瞭 迴顧。其主要增韌機理為跼部剪切屈服、孔洞或空穴的塑性體積膨脹和橡膠顆粒橋聯。在細 觀結構上採用典型軸對稱單元的有限元分析來預測增韌環氧樹脂的力學行為。斷裂力學的J 積分模型可用于估算增韌程度,基于斷裂韌性GIC的增韌模型定量分析已取得一定進展。
대상효증인배양수지적증인궤리모형진행료 회고。기주요증인궤리위국부전절굴복、공동혹공혈적소성체적팽창화상효과립교련。재세 관결구상채용전형축대칭단원적유한원분석래예측증인배양수지적역학행위。단렬역학적J 적분모형가용우고산증인정도,기우단렬인성GIC적증인모형정량분석이취득일정진전。
The model of toughening mechanisms of rubb er-toughened epoxy resins was reviewed. The main toughening mechanisms were ver ified as localized shear yielding, plastic growth of the viod or the hole and th e rubber bridging mechanisms. The analysis of the finite element method using th e axisymmetric model was employed to assess the mechanics behavior of the rubber toughening in mesostructure. The J-integral model could evaluate the rubbe r toughening degree based on the fracture mechanics. The quantitative model base d on the fracture toughness GIC had made some advances as well.
