Dynamic Stress Analysis of Smooth and Notched Fiber Composite Flexural Specimens | Zendy

PLN Murthy | Zendy; CC Chamis | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Dynamic Stress Analysis of Smooth and Notched Fiber Composite Flexural Specimens

Author(s) -

PLN Murthy,

CC Chamis

Publication year - 1986

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Book series

DOI - 10.1520/stp35358s

Subject(s) - composite number , materials science , composite material , flexural strength , structural engineering , fiber , stress (linguistics) , engineering , philosophy , linguistics

A detailed analysis of the dynamic stress field in smooth and notched fiber composite (Charpy-type) specimens is reported in this paper. The analysis is performed with the aid of the direct transient response analysis solution sequence of MSC/NASTRAN. Three unidirectional composites were chosen for the study. They are S-Glass/Epoxy, Kevlar/Epoxy and T-300/Epoxy composite systems. The specimens are subjected to an impact load which is modeled as a triangular impulse with a maximum of 2000 lb and a duration of 1 ms. The results are compared with those of static analysis of the specimens subjected to a peak load of 2000 lb. For the geometry and type of materials studied, the static analysis results gave close conservative estimates for the dynamic stresses. Another interesting inference from the study is that the impact induced effects are felt by S-Glass/Epoxy specimens sooner than Kevlar/Epoxy or T-300/Epoxy specimens.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research