Viscoelastic behavior on composite beam using nonlinear creep model

Autor: Dong Ku Shin, Nam-Il Kim, Sung-Yeop Jung
Rok vydání: 2007
Předmět:
Zdroj: Steel and Composite Structures. 7:355-376
ISSN: 1229-9367
DOI: 10.12989/scs.2007.7.5.355
Popis: The purpose of this study is to predict and investigate the time-dependent creep behavior of composite materials. For this, firstly the evaluation method for the modulus of elasticity of whole fiber and matrix is presented from the limited information on fiber volume fraction using the singular value decomposition method. Then, the effects of fiber volume fraction on modulus of elasticity of GFRP are verified. Also, as a creep model, the nonlinear curve fitting method based on the Marquardt algorithm is proposed. Using the existing Findley
Databáze: OpenAIRE