Shakedown behaviour of composite cylinders with cross holes

Haofeng Chen, Weihang Chen, Tianbai Li, James Michael Ure

Research output: Contribution to conferencePaper

Abstract

In this study, both the lower and upper bound shakedown limits of a closed-end composite cylinder with or without a cross hole subject to constant internal pressure and a cyclic thermal gradient are calculated by the Linear Matching Method (LMM). Convergence for upper and lower bound shakedown limit of the composite cylinders is sought and shakedown limit interaction diagrams of the numerical examples identifying the regions of reverse plastic limit and ratchet limit are presented. The effects of temperature-dependent yield stress, materials discontinuities, composite cylinder thickness and the existence of cross hole on the shakedown limits are discussed for different geometry parameters. Finally, a safety shakedown envelope is created by formulating the shakedown limit results of different composite material and cylinder thickness ratios with different cross hole sizes.

Conference

ConferenceProceedings of the ASME Pressure Vessels and Piping Conference 2010
CountryUnited States
CityBellevue, Washington
Period18/07/1022/07/10

Fingerprint

Composite materials
Thermal gradients
Yield stress
Plastics
Geometry
Temperature

Keywords

  • lower and upper bound
  • shakedown
  • linear matching method
  • composite cylinder

Cite this

Chen, H., Chen, W., Li, T., & Ure, J. M. (2010). Shakedown behaviour of composite cylinders with cross holes. Paper presented at Proceedings of the ASME Pressure Vessels and Piping Conference 2010, Bellevue, Washington, United States.
Chen, Haofeng ; Chen, Weihang ; Li, Tianbai ; Ure, James Michael. / Shakedown behaviour of composite cylinders with cross holes. Paper presented at Proceedings of the ASME Pressure Vessels and Piping Conference 2010, Bellevue, Washington, United States.10 p.
@conference{481b8d3ca6554414add3d86ccb78a598,
title = "Shakedown behaviour of composite cylinders with cross holes",
abstract = "In this study, both the lower and upper bound shakedown limits of a closed-end composite cylinder with or without a cross hole subject to constant internal pressure and a cyclic thermal gradient are calculated by the Linear Matching Method (LMM). Convergence for upper and lower bound shakedown limit of the composite cylinders is sought and shakedown limit interaction diagrams of the numerical examples identifying the regions of reverse plastic limit and ratchet limit are presented. The effects of temperature-dependent yield stress, materials discontinuities, composite cylinder thickness and the existence of cross hole on the shakedown limits are discussed for different geometry parameters. Finally, a safety shakedown envelope is created by formulating the shakedown limit results of different composite material and cylinder thickness ratios with different cross hole sizes.",
keywords = "lower and upper bound, shakedown, linear matching method, composite cylinder",
author = "Haofeng Chen and Weihang Chen and Tianbai Li and Ure, {James Michael}",
year = "2010",
month = "7",
day = "22",
language = "English",
note = "Proceedings of the ASME Pressure Vessels and Piping Conference 2010 ; Conference date: 18-07-2010 Through 22-07-2010",

}

Chen, H, Chen, W, Li, T & Ure, JM 2010, 'Shakedown behaviour of composite cylinders with cross holes' Paper presented at Proceedings of the ASME Pressure Vessels and Piping Conference 2010, Bellevue, Washington, United States, 18/07/10 - 22/07/10, .

Shakedown behaviour of composite cylinders with cross holes. / Chen, Haofeng; Chen, Weihang; Li, Tianbai; Ure, James Michael.

2010. Paper presented at Proceedings of the ASME Pressure Vessels and Piping Conference 2010, Bellevue, Washington, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Shakedown behaviour of composite cylinders with cross holes

AU - Chen, Haofeng

AU - Chen, Weihang

AU - Li, Tianbai

AU - Ure, James Michael

PY - 2010/7/22

Y1 - 2010/7/22

N2 - In this study, both the lower and upper bound shakedown limits of a closed-end composite cylinder with or without a cross hole subject to constant internal pressure and a cyclic thermal gradient are calculated by the Linear Matching Method (LMM). Convergence for upper and lower bound shakedown limit of the composite cylinders is sought and shakedown limit interaction diagrams of the numerical examples identifying the regions of reverse plastic limit and ratchet limit are presented. The effects of temperature-dependent yield stress, materials discontinuities, composite cylinder thickness and the existence of cross hole on the shakedown limits are discussed for different geometry parameters. Finally, a safety shakedown envelope is created by formulating the shakedown limit results of different composite material and cylinder thickness ratios with different cross hole sizes.

AB - In this study, both the lower and upper bound shakedown limits of a closed-end composite cylinder with or without a cross hole subject to constant internal pressure and a cyclic thermal gradient are calculated by the Linear Matching Method (LMM). Convergence for upper and lower bound shakedown limit of the composite cylinders is sought and shakedown limit interaction diagrams of the numerical examples identifying the regions of reverse plastic limit and ratchet limit are presented. The effects of temperature-dependent yield stress, materials discontinuities, composite cylinder thickness and the existence of cross hole on the shakedown limits are discussed for different geometry parameters. Finally, a safety shakedown envelope is created by formulating the shakedown limit results of different composite material and cylinder thickness ratios with different cross hole sizes.

KW - lower and upper bound

KW - shakedown

KW - linear matching method

KW - composite cylinder

UR - http://www.asmeconferences.org/PVP2010/pdfs/FinalProgram.pdf

UR - http://www.asmeconferences.org/pvp2010/

M3 - Paper

ER -

Chen H, Chen W, Li T, Ure JM. Shakedown behaviour of composite cylinders with cross holes. 2010. Paper presented at Proceedings of the ASME Pressure Vessels and Piping Conference 2010, Bellevue, Washington, United States.