Estimation of Strength and Fracture of Advanced Composite Materials

先进复合材料的强度和断裂估计

• 批准号: 03044014
• 负责人: ISHIKAWA Hiromasa
• 金额: $ 2.88万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03044014/
• 关键词: Advanced Composite Materials; Macroscopic Visco-elasto-plasticity; Macroscopic Cyclic Deformation; Fracture Criterion; Fatigue Property; Microscopic Mechanics; Macroscopic Mechanics

1. The method and schedule of this research program were discussed in detail with Prof. Ellyin and Prof. Krempl at Hokkaido University on August, 1991. The detailed plan for the research was made.2. The studies of the investigators of this research program, such as cyclic plasticity, viscoplasticity, elastoplasticity, damage mechanics and fracture mechanics, were assembled. then, those applicability to research on mechanism of advanced composite materials was discussed.3. The investigators of this research program attended the annual meeting '91 of ASME(America Society of Mechanical Engineering) which had a lot of presentation of advanced composite materials. Many instructive discussions were maad with researchers in the world. Then, problems of the research on composite materials were made clear.4. The experiments were carried out to investigate viscoelast-plasticity, cyclic plasticity, fatigue and fatigue damage of composite materials. The applicability of material mechanics to those behavior of composite materials was examined from the macroscopic point of view.5. The possibility to clear the interaction between matrix materials and reinforced materials was found using elastoplasticity or viscoplasticity. It was also clear that fracture mechanics and damage mechanics were able to. apply to investigate the interaction between matrix materials and reinforced materials.6. It was clear that fatigue failure of microstructures was similar to that of macrostructure. Then, The fatigue failure law for macrostructure might be used to explain fatigue failure of microstructures.7. The possibility to explain the microscopic deformation of composite materials was found using elastoplasticity, viscoplasticity, fracture mechanics and damage mechanics.8. The results obtained from this research were reported at the annual meeting '92 of JSME/MMD(Japan Society of Mechanical Engineering/Material and Mechanics Division) held in September 1992.

1. 1991年8月与北海道大学的Ellyin教授和Krempl教授详细讨论了该研究计划的方法和时间表。制定了详细的研究计划.本研究计划的研究人员，如循环塑性，粘塑性，弹塑性，损伤力学和断裂力学的研究，汇集。并讨论了其在先进复合材料机理研究中的适用性.本课题组参加了美国机械工程学会（ASME）'91年度会议，会上对先进复合材料作了大量的介绍。与世界各国的研究人员进行了许多有益的讨论。明确了复合材料研究中存在的问题.对复合材料的粘弹塑性、循环塑性、疲劳及疲劳损伤进行了试验研究。从宏观角度考察了材料力学对复合材料力学行为的适用性.用弹塑性或粘塑性理论研究了消除基体材料与增强材料之间相互作用的可能性。很明显，断裂力学和损伤力学能够。适用于研究基体材料和增强材料之间的相互作用.结果表明，材料的微观疲劳破坏与宏观疲劳破坏相似。因此，宏观结构的疲劳破坏规律可以用来解释微观结构的疲劳破坏.提出了用弹塑性、粘塑性、断裂力学和损伤力学解释复合材料细观变形的可能性.在1992年9月举行的JSME/MMD（日本机械工程学会/材料和力学分部）92年年会上报告了这项研究的结果。

项目成果

T.NOGUCH: "Fractography on Trans-laminar Fractnre of CFRP" Proc.of Aunual Meeting ′92 of JSME/MMD. 1. 357-358 (1992)

T.NOGUCH：“CFRP 跨层断裂的断口分析”，JSME/MMD 年会 92 论文集。 1. 357-358 (1992)

K.SASAKI: "Charactaristic Behavior of cFRP[±45°]_4 Subjected to Tension-Compression Loading and Ratchetting" Proc.of Asian Pacific Confernce on Fracture and Strengh ′93. (1993)

K.SASAKI：“cFRP[±45°]_4 受拉压载荷和棘轮作用的特性”，亚太断裂与强度会议 93（1993 年）。

E.KREMPL: "Viscoplasticity Based on Overstress,Anisotropic and Isotropic Formulations" Proc.of Aunual Meeting ′92 of JSME/MMD. 1. 87-89 (1992)

E.KREMPL：“基于过应力、各向异性和各向同性配方的粘塑性”，JSME/MMD 年会 92 议程。 1. 87-89 (1992)

D.F.STEINGANN: "Tension-Field Theorty of Isotropic Elastic Membranes" Proc.of Aunual Meeting ′92 of JSME/MMD. 1. 279-280 (1992)

D.F.STEINGANN：“各向同性弹性膜的张力场理论”，JSME/MMD 年会 92 议程。 1. 279-280 (1992)

E.KREMPL: "Viscoplastic Aualysis of Metal Matrix Composites" Proc.of Aunual Meeting ′92 of JSME/MMD. 1. 343-346 (1992)

E.KREMPL：“金属基复合材料的粘塑性分析”，JSME/MMD 年会 92 议程。 1. 343-346 (1992)