Strength determination and prediction of destructive processes of composites

Abstract

This paper is devoted to issues related to strength determination and prediction of destructive processes of composites; these issues enable determining the limits of safe use of a product and to recognize when limits are reached. The model that was developed and is presented in this paper enables to describe not only the predictable strength of unidirectional composites, but also the character of the destruction, taking into account the fiber stress and/ or ultimate strain distribution.

Keywords:

• strength
• destructive processes
• composite materials
• destruction
• diagnostics

Additional information

Notes on contributors

Ilmars Blumbergs

Ilmars BLUMBERGS, Eng. Sc. Dr

Education: 2012, Doctoral Degree in Engineering Science from the Aviation Institute of Riga Technical University. 2005, Master's Degree in Aviation Transport from the Aviation Institute of RTU. 2001, graduated from the Aviation Institute of RTU and obtained a Bachelor's Degree in Automotive Engineering

Affiliation and functions: 2001–2003, Engineer–constructor at Partneris L.V. ltd. (designing and manufacturing of equipment for polymer concrete products); 2006–2012, Deputy Head of the Aviation Institute; since 2005 academic staff; currently, owner and chief designer of IBTEH prototype design company, Riga, Latvia.

Research interests: composite materials, piston engines, including Stirling engine, prototype deign, flow simulations

Publications: 15 publications, 2 certificates of invention.

Martins Kleinhofs

Martins KLEINHOFS, Prof. Dr Habil.

Date of birth: 25 September 1942, Latvia.

Education: Riga Civil Aviation Engineering Institute; Mechanical Engineering Diploma (1966), Doctor Sc. Eng. Degree (1983), Doctor Habilitus Degree in Eng. (1998).

Research interests: reliability of technical systems, mathematical statistics, loads, structure and strength analysis of transport vehicles, structure and strength of composite materials.

Present position: Professor of the Aeronautical Institute of Riga Technical University.

Publications: 90, 1 certificate of invention, 16 textbooks.