Accession Number:

AD1096966

Title:

A Multi-Scale Approach of Combining Nano-indentation with Computational Mechanics to Predict Impact Behavior of Structural Composite Materials

Descriptive Note:

Technical Report,01 Nov 2017,31 Oct 2018

Corporate Author:

UNIVERSITY OF NEW MEXICO ALBUQUERQUE United States

Personal Author(s):

Report Date:

2018-10-22

Pagination or Media Count:

59.0

Abstract:

This project is intended to break new ground in predicting the mechanical behavior of advanced composites across multiple time- from slow nano-indentation to fast projectile impact and length-scalesnanometers to inches. A combined experimental and computational approach is proposed, therefore, highly specialized and invariably time-consuming and expensive impact tests can be supplanted by simple nano-indentation tests and mechanics simulations. The outcome will allow efficient predictions of low-speed impact response and damage of composites. The project will also feature impact tests for validating the developed models and procedures. In this project, we conduct elastic nano-indentation experiments in order to obtain elastic properties for impact simulations, while impact damage and other nonlinear deformation beyond elastic deformation will be simulated by computational mechanics. Therefore, the major tasks of this project are listed below A. Conduct selected nano-indentation and other material characterization tests for composite systems to establish a mechanical property database at the material level. B. Simulate the impact response and damage using the above material data. C. Validate impact simulation using low-speed impact experiments of composite laminates.

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE