Asee peer logo

Material Selection For A Pressure Vessel

Download Paper |


2008 Annual Conference & Exposition


Pittsburgh, Pennsylvania

Publication Date

June 22, 2008

Start Date

June 22, 2008

End Date

June 25, 2008



Conference Session

Materials in Design and Manufacturing

Tagged Division


Page Count


Page Numbers

13.869.1 - 13.869.9



Permanent URL

Download Count


Request a correction

Paper Authors

author page

Somnath Chattopadhyay Pennsylvania State University

Download Paper |

NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

Material Selection for a Pressure Vessel ABSTRACT

Pressure vessels are designed to contain pressure and withstand the operating mechanical and thermal transients for a specified design life. In addition they are designed to safety to leak before break (LBB). LBB describes the situation in which a leak occurs before a complete double-ended break of a component. Ductile and tough materials are widely used in nuclear pressure vessels, because of their high resistance to catastrophic rupture. The design process involves fatigue analysis to demonstrate that there is insignificant crack growth a postulated surface crack during the entire design life. However in terms of LBB the significant parameter is the elastic-plastic fracture toughness, and the material strength. However based on assessment based on linear elastic fracture mechanics, the candidate materials are carbon steels, low alloy steels and stainless steels, which interestingly are the materials that are used for pressure vessels. In terms of the fatigue crack initiation, the appropriate parameters are the threshold stress intensity factor range and the endurance limit and the material selection is based on these parameters.


Selection of materials and manufacturing processes are important activities that are essential for structural design. Ashby (2005) was the first to demonstrate that a wide range of material properties could be collected and plotted on the same curve, where two individual material variables appear on the abscissa and the ordinate. Using this concept Granta Design (2007) has developed a software package CES EduPack which includes a wide range of data on materials, manufacturing processes and shapes for over 3000 engineering materials. The objective of the present study is explore the use of the software CES EduPack in the selection of material for a pressure vessel where competing requirements of strength and resistance to crack extension have to be met.

Traditional treatment of pressure vessels in undergraduate engineering and engineering technology curricula appears typically in the course on strength of materials where only the strength design is emphasized. The elastic analyses are invoked and deformations beyond the elastic limit are not considered. In addition there is very limited reference to fracture mechanics. There have been incidences of failure of pressure vessels that could not be attributed to strength but to brittle and ductile fracture. In addition a large number of vessels fail in fatigue for which design codes exist.

Chattopadhyay, S. (2008, June), Material Selection For A Pressure Vessel Paper presented at 2008 Annual Conference & Exposition, Pittsburgh, Pennsylvania. 10.18260/1-2--4471

ASEE holds the copyright on this document. It may be read by the public free of charge. Authors may archive their work on personal websites or in institutional repositories with the following citation: © 2008 American Society for Engineering Education. Other scholars may excerpt or quote from these materials with the same citation. When excerpting or quoting from Conference Proceedings, authors should, in addition to noting the ASEE copyright, list all the original authors and their institutions and name the host city of the conference. - Last updated April 1, 2015