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Development of Experimental Techniques and Constitutive Material Model for Unidirectional Carbon Fiber Reinforced Polymer.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Development of Experimental Techniques and Constitutive Material Model for Unidirectional Carbon Fiber Reinforced Polymer./
Author:	Yang, Peiyu.
Description:	1 online resource (243 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-04, Section: B.
Contained By:	Dissertations Abstracts International85-04B.
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9798380596251

Development of Experimental Techniques and Constitutive Material Model for Unidirectional Carbon Fiber Reinforced Polymer.
Yang, Peiyu.

Development of Experimental Techniques and Constitutive Material Model for Unidirectional Carbon Fiber Reinforced Polymer. - 1 online resource (243 pages)

Source: Dissertations Abstracts International, Volume: 85-04, Section: B.

Thesis (Ph.D.)--The Ohio State University, 2023.

Includes bibliographical references

As emission standards of passenger vehicles become more and more strict, automotive manufacturers are seeking lightweight solutions to increase vehicle's fuel economy. Fibrous reinforced polymers (FRPs) are known to have high strength to weight ratios, and thus, made them good candidates for the application in the automotive industry. FRP is a composite material made of a polymer matrix reinforced with fibers. The inhomogeneity, anisotropy, visco-elasticity/plasticity, mechanical degradation due to temperature/damage, brittleness characteristics of the unidirectional FRP composites bring challenges to determine mechanical responses both experimentally and numerically. In this dissertation, mechanical behavior of unidirectional carbon fiber reinforced polymer (CFRP) made of Toray T700S carbon fiber and G83-CM prepreg system is studied. Specimens are fabricated from 8-ply and 16-ply CFRP plates. An experimental series is performed including tension, compression, and shear coupon tests at various strain rates ranging from 10-3 to 103 s-1. Anisotropy is studied by conducting tension, compression, and shear coupon tests in different fiber orientations. Thermal dependence of the material is investigated by performing coupon tests under temperatures ranging from 25 °C to 120 °C. CFRP has been found that loading in one direction can potentially lead to damage in other directions. Thus, coupled, and uncoupled damage testing is performed to characterize such behavior. Digital image correlation (DIC) is applied for deformation and strain measurement on the surface of the specimens. The coupon test data and damage test data are used to calibrate the deformation and damage sub-models of the constitutive material model, *MAT_COMPOSITE_TABULATED_PLASTICITY_DAMAGE, also called *MAT_213, in LS-DYNA. The deformation sub-model predicts elasto-plastic behavior, and it uses a strain-hardening-based orthotropic yield function with a non-associated flow rule extended from Tsai-Wu failure criterion. The flow rule coefficients are determined numerically based on experimental stress-strain curves. Mechanical degradation is determined from damage test data and is used for implementing the damage sub-model of *MAT_213. The correlation between experimental and numerical results is also presented.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380596251Subjects--Topical Terms:

557493
Mechanical engineering.
Subjects--Index Terms:

Experimental mechanicsIndex Terms--Genre/Form:

554714
Electronic books.

Development of Experimental Techniques and Constitutive Material Model for Unidirectional Carbon Fiber Reinforced Polymer.
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