Thermal stress analysis of hydraulic hose in mining industry

Jacinta Heraud, Daya Dayawansa, Wenyi Yan

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review


In this study the effect of thermal conditions on a hydraulic hose in the mining industry is investigated. Hydraulic hoses are used extensively in the mining industry, particularly in longwall mining. The failure of the hydraulic hoses in service is a high risk situation which can result in serious injury to people and damage to machinery. It is important to understand the stress state in the hoses so that the risk of failure can be reduced and controlled. The effect of aging on the hoses is also important as it is a factor that determines service life of the hoses. A typical hydraulic hose is made of three layers; an inner and outer layer made of rubber and a reinforcement layer made of steel in the middle. The reinforcement can be in the form of spiral wire or a steel sheath. In service, the hydraulic hoses experience a temperature gradient through its thickness due to the hydraulic fluid enclosed and the external conditions. This temperature gradient will induce thermal stresses through the hose thickness, in addition to other stresses due to fluid pressure. An analytical solution to the steady state temperature distribution in the radial direction is obtained. This temperature distribution is dependent on the thermal conductivity of the hose materials. A thermal stress analysis is also conducted using finite element analysis to show the stress state of the hose due to the thermal conditions on the hose. The ultimate goal of this research is to obtain a better understanding of the complete stress state in the hose as well as evaluating the effects of aging on the hose.

Original languageEnglish
Title of host publication8th Australasian Congress on Applied Mechanics, ACAM 2014
Subtitle of host publicationMelbourne, Australia, 25-26 November 2014
Place of PublicationBarton, ACT
PublisherEngineers Australia
Number of pages9
ISBN (Electronic)9781922107350
Publication statusPublished - 1 Nov 2014
EventAustralasian Congress on Applied Mechanics 2014 - Melbourne, Australia
Duration: 25 Jan 201426 Nov 2014
Conference number: 8th


ConferenceAustralasian Congress on Applied Mechanics 2014
Abbreviated titleACAM 2014
Otheras Part of Engineers Australia Convention 2014


  • Hydraulic hose
  • Longwall mining
  • Thermal stress

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