Damage initiation strengths for the mesoscale lamina damage model of fiber-reinforced polymer composite laminates

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F25%3A00013150" target="_blank" >RIV/46747885:24210/25:00013150 - isvavai.cz</a>

Result on the web

<a href="https://journals.sagepub.com/doi/epdf/10.1177/00219983241311359?src=getftr&utm_source=scopus&getft_integrator=scopus" target="_blank" >https://journals.sagepub.com/doi/epdf/10.1177/00219983241311359?src=getftr&utm_source=scopus&getft_integrator=scopus</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/00219983241311359" target="_blank" >10.1177/00219983241311359</a>

Result language

angličtina

Original language name

Damage initiation strengths for the mesoscale lamina damage model of fiber-reinforced polymer composite laminates

Original language description

The damage initiation criteria based on Hashin’s theory for fiber-reinforced composite lamina are refined by replacing the fracture strengths with the respective damage initiation strengths. The damage initiation strengths of the carbon fiber-reinforced (CFRP) composite lamina under tension and compression are comparable to the respective fracture strength. Thus, emphasis is placed on the measured nonlinear longitudinal shear response of the lamina. Results show that the damage initiation strength for longitudinal shear at 47.2 MPa is 43.5% lower than the lamina shear strength. The pure shear stress state at the mid-length gage region of the V-notch test coupon is maintained up to damage initiation, after which the fibers rotate and induce the normal strain components. The outcomes of the computational model fit the second-order description of the lamina damage initiation criteria and the expected post-damage stiffness reduction of the laminate coupon. The damage model is validated by the comparable measured and finite element (FE)-predicted load-displacement curves to fracture of the laminate coupon. The FE-computed and measured shear strain field using the digital image correlation (DIC) method is similar. In addition, the FE-calculated anti-symmetric matrix tensile damage distribution at the notches in the observed locations of the initial matrix cracks is consistent.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Name of the periodical

Journal of Composite Materials>

ISSN

0021-9983

e-ISSN

—

Volume of the periodical

59

Issue of the periodical within the volume

11

Country of publishing house

GB - UNITED KINGDOM

Number of pages

17

Pages from-to

1-17

UT code for WoS article

001390082500001

EID of the result in the Scopus database

2-s2.0-105002633755