NICOP - Statistical Long Term Creep Failure Time of Unidirectional CFRP
Abstract
Statistical Long Term Creep Failure Time of Unidirectional CFRPTechnical: Carbon fiber-reinforced polymer (CFRP) is increasingly adopted for the primary structures of ships and aircrafts where high strength-to-weight ratio is desired. In the design of a CFRP structure, the tensile strength in the longitudinal direction of unidirectional CFRP) is one of the most important data for the reliable design of CFRP structures. This project is to establish the prediction method of statistical creep failure time under the tension loading along the longitudinal direction of unidirectional CFRP based on the viscoelasticity of matrix resin. The results of quasi-static tests of CFRP with different strand configurations will be analyzed statistically for the prediction of creep failure time at arbitrary constant load and temperature. The statistical model will be validated by comparing to experimental results. The accelerated testing methodology for the lifetime prediction of CFRP structures will be a valuable tool to improved composite design.b. Relevance: Adoption of CFRP structures offers high performance ship structure with significant saving in weight. The research is useful in providing a theoretical guideline for durable and structure design. The results will have an impact on the platform design & survivability and power and energy Naval S&T Focus Areas..c. Coordination: Dr. Yapa Rajapakse of ONR 332. d. Desired Outcome: The findings will add to the knowledge base of CFRP composite behavior under long term mechanical and thermal loadings. The accelerated testing methodology for the prediction of CFRP lifetime will be a valuable tool to improved structure design and platform performance
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 30, 2016
- Source ID
- N629091612132
Entities
People
- Yasushi Miyano
Organizations
- Kanazawa Institute of Technology
- Office of Naval Research
- United States Navy