Temperature Effects on Damage Mechanisms of Hybrid Metal – Composite Bolted Joints Using SHM Testing Method

Journal Title: INCAS BULLETIN - Year 2019, Vol 11, Issue 1

Abstract

This paper presents the quasi-static thermo-mechanical loading effects on the progressive damage mechanisms and failure modes of the single-bolt, single-shear, hybrid metal-composite, bolted joints in aerospace applications. A three-dimensional finite element method (FEM) technique was used to model the countersunk head bolted joint in details, including geometric and frictional based contact full nonlinearities and using commercial software PATRAN as pre/post-processor. The progressive damage analysis (PDA) in laminated (CFRP/ vinyl ester epoxy) composite material including nonlinear shear behavior, Hashin-type failure criteria and strain-based continuous degradation rules for different values of temperatures was made using SOL 400 NASTRAN solver. In order to validate the numerical results and close investigation of the fracture mechanisms for metal-composite bolted joints by determining ultimate failure loads, experiments were conducted in temperature controlled chamber using SHM (Structural Health Monitoring) technique. The results show that the thermal effects are not negligible on failure mechanism in hybrid aluminum-CFRP bolted joints having strong different thermal expansion coefficients. The complex 3D FEM model using advanced linear continuum solid-shell elements proved computational efficiency and ability to accurately predict the various failure modes as bearing and shear-shear out, including the temperature effects on the failure propagation and damage mechanism of hybrid metal-composite bolted joints.

Authors and Affiliations

Calin-Dumitru COMAN, Ion DIMA, Stefan HOTHAZIE, George PELIN, Tiberiu SALAORU

Keywords

Related Articles

Calculation of the Wall Shear Stress in the case of an Internal Carotid Artery with stenoses of different sizes

In this paper we use a non-Newtonian mathematical model for the blood flow in large vessels – elaborated and presented already by us in a previous paper [1]. We calculate and than compare the values of the wall shear str...

Rocket Solid Propellant Alternative Based on Ammonium Dinitramide

Due to the continuous run for a green environment the current article proposes a new type of solid propellant based on the fairly new synthesized oxidizer, ammonium dinitramide (ADN). Apart of having a higher specific im...

A Hydro-Dynamical Model for Gravity

A hydro-dynamical model for gravity by using an analogy with the attraction of spherical sources in incompressible fluids is proposed. Information regarding a photon-like particle called graviton is taken using an author...

Structured Robust Control for Small UAV

The performance and dynamic stability issues of flight control systems are still considered one of the most challenging design problems even though all of significant advances that have been happened in UAVs in the two l...

Small power wind turbine (Type DARRIEUS)

This presentation focuses on the calculation for small vertical axis wind turbines (VAWT) for an urban application. The fixed-pitch straight – bladed vertical axis wind turbine (SB-VAWT) is one of the simplest types of w...

Download PDF file
  • EP ID EP470844
  • DOI 10.13111/2066-8201.2019.11.1.5
  • Views 80
  • Downloads 0

How To Cite

Calin-Dumitru COMAN, Ion DIMA, Stefan HOTHAZIE, George PELIN, Tiberiu SALAORU (2019). Temperature Effects on Damage Mechanisms of Hybrid Metal – Composite Bolted Joints Using SHM Testing Method. INCAS BULLETIN, 11(1), 61-77. https://europub.co.uk/articles/-A-470844